From 9881a8803cead1ebf7594940c5d71ebc6cadf743 Mon Sep 17 00:00:00 2001
From: Filip Hrisafov <filip.hrisafov@gmail.com>
Date: Wed, 15 Mar 2017 22:04:58 +0100
Subject: [PATCH] #1104 use unmapped target policy for forged name based
 mappings

---
 .../ap/internal/model/BeanMappingMethod.java  |  89 +++++---
 .../mapstruct/ap/internal/util/Message.java   |   2 +
 ...=> AbstractSourceTargetMapperPrivate.java} |   6 +-
 .../ReferencedAccessibilityTest.java          |  83 ++++---
 ...va => SourceTargetMapperDefaultOther.java} |   6 +-
 ...te.java => SourceTargetMapperPrivate.java} |   4 +-
 .../nestedbeans/DottedErrorMessageTest.java   | 214 ++++++++++++------
 .../BaseCollectionElementPropertyMapper.java} |   9 +-
 .../BaseDeepListMapper.java}                  |   9 +-
 .../BaseDeepMapKeyMapper.java}                |   9 +-
 .../BaseDeepMapValueMapper.java}              |   9 +-
 .../BaseDeepNestingMapper.java}               |   9 +-
 .../BaseValuePropertyMapper.java}             |   9 +-
 .../{erroneous => unmappable}/Car.java        |   2 +-
 .../{erroneous => unmappable}/CarDto.java     |   2 +-
 .../{erroneous => unmappable}/Cat.java        |   2 +-
 .../{erroneous => unmappable}/CatDto.java     |   2 +-
 .../{erroneous => unmappable}/Color.java      |   2 +-
 .../{erroneous => unmappable}/ColorDto.java   |   2 +-
 .../{erroneous => unmappable}/Computer.java   |   2 +-
 .../ComputerDto.java                          |   2 +-
 .../{erroneous => unmappable}/Dictionary.java |   2 +-
 .../DictionaryDto.java                        |   2 +-
 .../ExternalRoofType.java                     |   2 +-
 .../ForeignWord.java                          |   2 +-
 .../ForeignWordDto.java                       |   2 +-
 .../{erroneous => unmappable}/House.java      |   2 +-
 .../{erroneous => unmappable}/HouseDto.java   |   2 +-
 .../{erroneous => unmappable}/Info.java       |   2 +-
 .../{erroneous => unmappable}/InfoDto.java    |   2 +-
 .../{erroneous => unmappable}/Roof.java       |   2 +-
 .../{erroneous => unmappable}/RoofDto.java    |   2 +-
 .../{erroneous => unmappable}/RoofType.java   |   2 +-
 .../RoofTypeMapper.java                       |   2 +-
 .../{erroneous => unmappable}/User.java       |   2 +-
 .../{erroneous => unmappable}/UserDto.java    |   2 +-
 .../{erroneous => unmappable}/Wheel.java      |   2 +-
 .../{erroneous => unmappable}/WheelDto.java   |   2 +-
 .../{erroneous => unmappable}/Word.java       |   2 +-
 .../{erroneous => unmappable}/WordDto.java    |   2 +-
 ...ppableCollectionElementPropertyMapper.java |  28 +++
 .../erroneous/UnmappableDeepListMapper.java   |  28 +++
 .../erroneous/UnmappableDeepMapKeyMapper.java |  28 +++
 .../UnmappableDeepMapValueMapper.java         |  28 +++
 .../UnmappableDeepNestingMapper.java          |  28 +++
 .../erroneous/UnmappableEnumMapper.java       |  14 +-
 .../UnmappableValuePropertyMapper.java        |  28 +++
 ...IgnoreCollectionElementPropertyMapper.java |  28 +++
 .../UnmappableIgnoreDeepListMapper.java       |  28 +++
 .../UnmappableIgnoreDeepMapKeyMapper.java     |  28 +++
 .../UnmappableIgnoreDeepMapValueMapper.java   |  28 +++
 .../UnmappableIgnoreDeepNestingMapper.java    |  28 +++
 .../UnmappableIgnoreValuePropertyMapper.java  |  28 +++
 ...leWarnCollectionElementPropertyMapper.java |  27 +++
 .../warn/UnmappableWarnDeepListMapper.java    |  27 +++
 .../warn/UnmappableWarnDeepMapKeyMapper.java  |  27 +++
 .../UnmappableWarnDeepMapValueMapper.java     |  27 +++
 .../warn/UnmappableWarnDeepNestingMapper.java |  27 +++
 .../UnmappableWarnValuePropertyMapper.java    |  27 +++
 ...ompanyMapper1.java => CompanyMapper1.java} |   4 +-
 .../test/updatemethods/UpdateMethodsTest.java |  16 +-
 ...AbstractSourceTargetMapperPrivateImpl.java |  52 +++++
 .../SourceTargetMapperDefaultOtherImpl.java   |  52 +++++
 .../SourceTargetMapperPrivateImpl.java        |  52 +++++
 .../updatemethods/CompanyMapper1Impl.java     | 133 +++++++++++
 65 files changed, 1114 insertions(+), 219 deletions(-)
 rename processor/src/test/java/org/mapstruct/ap/test/accessibility/referenced/{ErroneousAbstractSourceTargetMapperPrivate.java => AbstractSourceTargetMapperPrivate.java} (80%)
 rename processor/src/test/java/org/mapstruct/ap/test/accessibility/referenced/{ErroneousSourceTargetMapperDefaultOther.java => SourceTargetMapperDefaultOther.java} (86%)
 rename processor/src/test/java/org/mapstruct/ap/test/accessibility/referenced/{ErroneousSourceTargetMapperPrivate.java => SourceTargetMapperPrivate.java} (87%)
 rename processor/src/test/java/org/mapstruct/ap/test/nestedbeans/{erroneous/UnmappableCollectionElementPropertyMapper.java => unmappable/BaseCollectionElementPropertyMapper.java} (82%)
 rename processor/src/test/java/org/mapstruct/ap/test/nestedbeans/{erroneous/UnmappableDeepListMapper.java => unmappable/BaseDeepListMapper.java} (84%)
 rename processor/src/test/java/org/mapstruct/ap/test/nestedbeans/{erroneous/UnmappableDeepMapKeyMapper.java => unmappable/BaseDeepMapKeyMapper.java} (84%)
 rename processor/src/test/java/org/mapstruct/ap/test/nestedbeans/{erroneous/UnmappableDeepMapValueMapper.java => unmappable/BaseDeepMapValueMapper.java} (84%)
 rename processor/src/test/java/org/mapstruct/ap/test/nestedbeans/{erroneous/UnmappableDeepNestingMapper.java => unmappable/BaseDeepNestingMapper.java} (83%)
 rename processor/src/test/java/org/mapstruct/ap/test/nestedbeans/{erroneous/UnmappableValuePropertyMapper.java => unmappable/BaseValuePropertyMapper.java} (83%)
 rename processor/src/test/java/org/mapstruct/ap/test/nestedbeans/{erroneous => unmappable}/Car.java (96%)
 rename processor/src/test/java/org/mapstruct/ap/test/nestedbeans/{erroneous => unmappable}/CarDto.java (96%)
 rename processor/src/test/java/org/mapstruct/ap/test/nestedbeans/{erroneous => unmappable}/Cat.java (94%)
 rename processor/src/test/java/org/mapstruct/ap/test/nestedbeans/{erroneous => unmappable}/CatDto.java (94%)
 rename processor/src/test/java/org/mapstruct/ap/test/nestedbeans/{erroneous => unmappable}/Color.java (95%)
 rename processor/src/test/java/org/mapstruct/ap/test/nestedbeans/{erroneous => unmappable}/ColorDto.java (94%)
 rename processor/src/test/java/org/mapstruct/ap/test/nestedbeans/{erroneous => unmappable}/Computer.java (94%)
 rename processor/src/test/java/org/mapstruct/ap/test/nestedbeans/{erroneous => unmappable}/ComputerDto.java (94%)
 rename processor/src/test/java/org/mapstruct/ap/test/nestedbeans/{erroneous => unmappable}/Dictionary.java (95%)
 rename processor/src/test/java/org/mapstruct/ap/test/nestedbeans/{erroneous => unmappable}/DictionaryDto.java (95%)
 rename processor/src/test/java/org/mapstruct/ap/test/nestedbeans/{erroneous => unmappable}/ExternalRoofType.java (94%)
 rename processor/src/test/java/org/mapstruct/ap/test/nestedbeans/{erroneous => unmappable}/ForeignWord.java (94%)
 rename processor/src/test/java/org/mapstruct/ap/test/nestedbeans/{erroneous => unmappable}/ForeignWordDto.java (95%)
 rename processor/src/test/java/org/mapstruct/ap/test/nestedbeans/{erroneous => unmappable}/House.java (95%)
 rename processor/src/test/java/org/mapstruct/ap/test/nestedbeans/{erroneous => unmappable}/HouseDto.java (95%)
 rename processor/src/test/java/org/mapstruct/ap/test/nestedbeans/{erroneous => unmappable}/Info.java (94%)
 rename processor/src/test/java/org/mapstruct/ap/test/nestedbeans/{erroneous => unmappable}/InfoDto.java (94%)
 rename processor/src/test/java/org/mapstruct/ap/test/nestedbeans/{erroneous => unmappable}/Roof.java (95%)
 rename processor/src/test/java/org/mapstruct/ap/test/nestedbeans/{erroneous => unmappable}/RoofDto.java (95%)
 rename processor/src/test/java/org/mapstruct/ap/test/nestedbeans/{erroneous => unmappable}/RoofType.java (94%)
 rename processor/src/test/java/org/mapstruct/ap/test/nestedbeans/{erroneous => unmappable}/RoofTypeMapper.java (95%)
 rename processor/src/test/java/org/mapstruct/ap/test/nestedbeans/{erroneous => unmappable}/User.java (97%)
 rename processor/src/test/java/org/mapstruct/ap/test/nestedbeans/{erroneous => unmappable}/UserDto.java (97%)
 rename processor/src/test/java/org/mapstruct/ap/test/nestedbeans/{erroneous => unmappable}/Wheel.java (95%)
 rename processor/src/test/java/org/mapstruct/ap/test/nestedbeans/{erroneous => unmappable}/WheelDto.java (95%)
 rename processor/src/test/java/org/mapstruct/ap/test/nestedbeans/{erroneous => unmappable}/Word.java (94%)
 rename processor/src/test/java/org/mapstruct/ap/test/nestedbeans/{erroneous => unmappable}/WordDto.java (95%)
 create mode 100644 processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/erroneous/UnmappableCollectionElementPropertyMapper.java
 create mode 100644 processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/erroneous/UnmappableDeepListMapper.java
 create mode 100644 processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/erroneous/UnmappableDeepMapKeyMapper.java
 create mode 100644 processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/erroneous/UnmappableDeepMapValueMapper.java
 create mode 100644 processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/erroneous/UnmappableDeepNestingMapper.java
 rename processor/src/test/java/org/mapstruct/ap/test/nestedbeans/{ => unmappable}/erroneous/UnmappableEnumMapper.java (62%)
 create mode 100644 processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/erroneous/UnmappableValuePropertyMapper.java
 create mode 100644 processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/ignore/UnmappableIgnoreCollectionElementPropertyMapper.java
 create mode 100644 processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/ignore/UnmappableIgnoreDeepListMapper.java
 create mode 100644 processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/ignore/UnmappableIgnoreDeepMapKeyMapper.java
 create mode 100644 processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/ignore/UnmappableIgnoreDeepMapValueMapper.java
 create mode 100644 processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/ignore/UnmappableIgnoreDeepNestingMapper.java
 create mode 100644 processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/ignore/UnmappableIgnoreValuePropertyMapper.java
 create mode 100644 processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/warn/UnmappableWarnCollectionElementPropertyMapper.java
 create mode 100644 processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/warn/UnmappableWarnDeepListMapper.java
 create mode 100644 processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/warn/UnmappableWarnDeepMapKeyMapper.java
 create mode 100644 processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/warn/UnmappableWarnDeepMapValueMapper.java
 create mode 100644 processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/warn/UnmappableWarnDeepNestingMapper.java
 create mode 100644 processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/warn/UnmappableWarnValuePropertyMapper.java
 rename processor/src/test/java/org/mapstruct/ap/test/updatemethods/{ErroneousCompanyMapper1.java => CompanyMapper1.java} (91%)
 create mode 100644 processor/src/test/resources/fixtures/org/mapstruct/ap/test/accessibility/referenced/AbstractSourceTargetMapperPrivateImpl.java
 create mode 100644 processor/src/test/resources/fixtures/org/mapstruct/ap/test/accessibility/referenced/SourceTargetMapperDefaultOtherImpl.java
 create mode 100644 processor/src/test/resources/fixtures/org/mapstruct/ap/test/accessibility/referenced/SourceTargetMapperPrivateImpl.java
 create mode 100644 processor/src/test/resources/fixtures/org/mapstruct/ap/test/updatemethods/CompanyMapper1Impl.java

diff --git a/processor/src/main/java/org/mapstruct/ap/internal/model/BeanMappingMethod.java b/processor/src/main/java/org/mapstruct/ap/internal/model/BeanMappingMethod.java
index 8911fef2d..39e942965 100644
--- a/processor/src/main/java/org/mapstruct/ap/internal/model/BeanMappingMethod.java
+++ b/processor/src/main/java/org/mapstruct/ap/internal/model/BeanMappingMethod.java
@@ -674,52 +674,71 @@ public class BeanMappingMethod extends NormalTypeMappingMethod {
             // fetch settings from element to implement
             ReportingPolicyPrism unmappedTargetPolicy = getUnmappedTargetPolicy();
 
-            //we handle automapping forged methods differently than the usual source ones. in
-            if ( method instanceof ForgedMethod && ( (ForgedMethod) method ).isForgedNamedBased() ) {
-
-                ForgedMethod forgedMethod = (ForgedMethod) this.method;
-                if ( targetProperties.isEmpty() || !unprocessedTargetProperties.isEmpty() ) {
-
-                    if ( forgedMethod.getHistory() == null ) {
-                        Type sourceType = this.method.getParameters().get( 0 ).getType();
-                        Type targetType = this.method.getReturnType();
-                        ctx.getMessager().printMessage(
-                            this.method.getExecutable(),
-                            Message.PROPERTYMAPPING_FORGED_MAPPING_NOT_FOUND,
-                            sourceType,
-                            targetType,
-                            targetType,
-                            sourceType
-                        );
-                    }
-                    else {
-                        ForgedMethodHistory history = forgedMethod.getHistory();
-                        ctx.getMessager().printMessage(
-                            this.method.getExecutable(),
-                            Message.PROPERTYMAPPING_MAPPING_NOT_FOUND,
-                            history.createSourcePropertyErrorMessage(),
-                            history.getTargetType(),
-                            history.createTargetPropertyName(),
-                            history.getTargetType(),
-                            history.getSourceType()
-                        );
-                    }
-
+            if ( method instanceof ForgedMethod && targetProperties.isEmpty() ) {
+                //TODO until we solve 1140 we report this error when the target properties are empty
+                ForgedMethod forgedMethod = (ForgedMethod) method;
+                if ( forgedMethod.getHistory() == null ) {
+                    Type sourceType = this.method.getParameters().get( 0 ).getType();
+                    Type targetType = this.method.getReturnType();
+                    ctx.getMessager().printMessage(
+                        this.method.getExecutable(),
+                        Message.PROPERTYMAPPING_FORGED_MAPPING_NOT_FOUND,
+                        sourceType,
+                        targetType,
+                        targetType,
+                        sourceType
+                    );
+                }
+                else {
+                    ForgedMethodHistory history = forgedMethod.getHistory();
+                    ctx.getMessager().printMessage(
+                        this.method.getExecutable(),
+                        Message.PROPERTYMAPPING_MAPPING_NOT_FOUND,
+                        history.createSourcePropertyErrorMessage(),
+                        history.getTargetType(),
+                        history.createTargetPropertyName(),
+                        history.getTargetType(),
+                        history.getSourceType()
+                    );
                 }
             }
             else if ( !unprocessedTargetProperties.isEmpty() && unmappedTargetPolicy.requiresReport() ) {
 
                 Message msg = unmappedTargetPolicy.getDiagnosticKind() == Diagnostic.Kind.ERROR ?
                     Message.BEANMAPPING_UNMAPPED_TARGETS_ERROR : Message.BEANMAPPING_UNMAPPED_TARGETS_WARNING;
-
-                ctx.getMessager().printMessage(
-                    method.getExecutable(),
-                    msg,
+                Object[] args = new Object[] {
                     MessageFormat.format(
                         "{0,choice,1#property|1<properties}: \"{1}\"",
                         unprocessedTargetProperties.size(),
                         Strings.join( unprocessedTargetProperties.keySet(), ", " )
                     )
+                };
+                if ( method instanceof ForgedMethod ) {
+                    msg = unmappedTargetPolicy.getDiagnosticKind() == Diagnostic.Kind.ERROR ?
+                        Message.BEANMAPPING_UNMAPPED_FORGED_TARGETS_ERROR :
+                        Message.BEANMAPPING_UNMAPPED_FORGED_TARGETS_WARNING;
+                    String sourceErrorMessage = method.getParameters().get( 0 ).getType().toString();
+                    String targetErrorMessage = method.getReturnType().toString();
+                    if ( ( (ForgedMethod) method ).getHistory() != null ) {
+                        ForgedMethodHistory history = ( (ForgedMethod) method ).getHistory();
+                        sourceErrorMessage = history.createSourcePropertyErrorMessage();
+                        targetErrorMessage = MessageFormat.format(
+                            "\"{0} {1}\"",
+                            history.getTargetType(),
+                            history.createTargetPropertyName()
+                        );
+                    }
+                    args = new Object[] {
+                        args[0],
+                        sourceErrorMessage,
+                        targetErrorMessage
+                    };
+                }
+
+                ctx.getMessager().printMessage(
+                    method.getExecutable(),
+                    msg,
+                    args
                 );
             }
         }
diff --git a/processor/src/main/java/org/mapstruct/ap/internal/util/Message.java b/processor/src/main/java/org/mapstruct/ap/internal/util/Message.java
index 9b2a37bdc..b50cc0fdc 100644
--- a/processor/src/main/java/org/mapstruct/ap/internal/util/Message.java
+++ b/processor/src/main/java/org/mapstruct/ap/internal/util/Message.java
@@ -37,6 +37,8 @@ public enum Message {
     BEANMAPPING_SEVERAL_POSSIBLE_TARGET_ACCESSORS( "Found several matching getters for property \"%s\"." ),
     BEANMAPPING_UNMAPPED_TARGETS_WARNING( "Unmapped target %s.", Diagnostic.Kind.WARNING ),
     BEANMAPPING_UNMAPPED_TARGETS_ERROR( "Unmapped target %s." ),
+    BEANMAPPING_UNMAPPED_FORGED_TARGETS_WARNING( "Unmapped target %s. Mapping from %s to %s.", Diagnostic.Kind.WARNING ),
+    BEANMAPPING_UNMAPPED_FORGED_TARGETS_ERROR( "Unmapped target %s. Mapping from %s to %s." ),
     BEANMAPPING_CYCLE_BETWEEN_PROPERTIES( "Cycle(s) between properties given via dependsOn(): %s." ),
     BEANMAPPING_UNKNOWN_PROPERTY_IN_DEPENDS_ON( "\"%s\" is no property of the method return type." ),
 
diff --git a/processor/src/test/java/org/mapstruct/ap/test/accessibility/referenced/ErroneousAbstractSourceTargetMapperPrivate.java b/processor/src/test/java/org/mapstruct/ap/test/accessibility/referenced/AbstractSourceTargetMapperPrivate.java
similarity index 80%
rename from processor/src/test/java/org/mapstruct/ap/test/accessibility/referenced/ErroneousAbstractSourceTargetMapperPrivate.java
rename to processor/src/test/java/org/mapstruct/ap/test/accessibility/referenced/AbstractSourceTargetMapperPrivate.java
index 7e2645f43..bb5261ddf 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/accessibility/referenced/ErroneousAbstractSourceTargetMapperPrivate.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/accessibility/referenced/AbstractSourceTargetMapperPrivate.java
@@ -27,10 +27,10 @@ import org.mapstruct.factory.Mappers;
  * @author Sjaak Derksen
  */
 @Mapper
-public abstract class ErroneousAbstractSourceTargetMapperPrivate extends SourceTargetmapperPrivateBase {
+public abstract class AbstractSourceTargetMapperPrivate extends SourceTargetmapperPrivateBase {
 
-    public static final ErroneousAbstractSourceTargetMapperPrivate INSTANCE =
-            Mappers.getMapper( ErroneousAbstractSourceTargetMapperPrivate.class );
+    public static final AbstractSourceTargetMapperPrivate INSTANCE =
+            Mappers.getMapper( AbstractSourceTargetMapperPrivate.class );
 
     @Mapping(source = "referencedSource", target = "referencedTarget")
     public abstract Target toTarget(Source source);
diff --git a/processor/src/test/java/org/mapstruct/ap/test/accessibility/referenced/ReferencedAccessibilityTest.java b/processor/src/test/java/org/mapstruct/ap/test/accessibility/referenced/ReferencedAccessibilityTest.java
index 6aaa67933..7f4bea7fa 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/accessibility/referenced/ReferencedAccessibilityTest.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/accessibility/referenced/ReferencedAccessibilityTest.java
@@ -18,6 +18,7 @@
  */
 package org.mapstruct.ap.test.accessibility.referenced;
 
+import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.mapstruct.ap.test.accessibility.referenced.a.ReferencedMapperDefaultOther;
@@ -27,6 +28,7 @@ import org.mapstruct.ap.testutil.compilation.annotation.CompilationResult;
 import org.mapstruct.ap.testutil.compilation.annotation.Diagnostic;
 import org.mapstruct.ap.testutil.compilation.annotation.ExpectedCompilationOutcome;
 import org.mapstruct.ap.testutil.runner.AnnotationProcessorTestRunner;
+import org.mapstruct.ap.testutil.runner.GeneratedSource;
 
 /**
  * Test for different accessibility modifiers
@@ -37,21 +39,26 @@ import org.mapstruct.ap.testutil.runner.AnnotationProcessorTestRunner;
 @RunWith( AnnotationProcessorTestRunner.class )
 public class ReferencedAccessibilityTest {
 
+    @Rule
+    public final GeneratedSource generatedSource = new GeneratedSource();
+
     @Test
-    @IssueKey( "206" )
-    @WithClasses( { ErroneousSourceTargetMapperPrivate.class, ReferencedMapperPrivate.class } )
+    @IssueKey("206")
+    @WithClasses({ SourceTargetMapperPrivate.class, ReferencedMapperPrivate.class })
     @ExpectedCompilationOutcome(
-            value = CompilationResult.FAILED,
-            diagnostics = {
-                @Diagnostic( type = ErroneousSourceTargetMapperPrivate.class,
-                        kind = javax.tools.Diagnostic.Kind.ERROR,
-                        line = 35,
-                        messageRegExp = "Can't map property \"org\\.mapstruct\\.ap\\.test\\.accessibility\\."
-                                + "referenced\\.ReferencedSource referencedSource\" to \"org\\.mapstruct\\."
-                                + "ap\\.test\\.accessibility\\.referenced\\.ReferencedTarget referencedTarget\"" )
-            }
+        value = CompilationResult.SUCCEEDED,
+        diagnostics = {
+            @Diagnostic(type = SourceTargetMapperPrivate.class,
+                kind = javax.tools.Diagnostic.Kind.WARNING,
+                line = 35,
+                messageRegExp = "Unmapped target property: \"bar\"\\. Mapping from property \"org\\.mapstruct\\.ap\\" +
+                    ".test\\.accessibility\\.referenced\\.ReferencedSource referencedSource\" to \"org\\.mapstruct\\" +
+                    ".ap\\.test\\.accessibility\\.referenced\\.ReferencedTarget referencedTarget\"")
+        }
     )
-    public void shouldNotBeAbleToAccessPrivateMethodInReferenced() throws Exception { }
+    public void shouldNotBeAbleToAccessPrivateMethodInReferenced() throws Exception {
+        generatedSource.addComparisonToFixtureFor( SourceTargetMapperPrivate.class );
+    }
 
     @Test
     @IssueKey( "206" )
@@ -64,20 +71,22 @@ public class ReferencedAccessibilityTest {
     public void shouldBeAbleToAccessProtectedMethodInReferencedInSamePackage() throws Exception { }
 
     @Test
-    @IssueKey( "206" )
-    @WithClasses( { ErroneousSourceTargetMapperDefaultOther.class, ReferencedMapperDefaultOther.class } )
+    @IssueKey("206")
+    @WithClasses({ SourceTargetMapperDefaultOther.class, ReferencedMapperDefaultOther.class })
     @ExpectedCompilationOutcome(
-            value = CompilationResult.FAILED,
-            diagnostics = {
-                @Diagnostic( type = ErroneousSourceTargetMapperDefaultOther.class,
-                        kind = javax.tools.Diagnostic.Kind.ERROR,
-                        line = 37,
-                        messageRegExp = "Can't map property \"org\\.mapstruct\\.ap\\.test\\.accessibility\\."
-                                + "referenced\\.ReferencedSource referencedSource\" to \"org\\.mapstruct\\."
-                                + "ap\\.test\\.accessibility\\.referenced\\.ReferencedTarget referencedTarget\"" )
-            }
+        value = CompilationResult.SUCCEEDED,
+        diagnostics = {
+            @Diagnostic(type = SourceTargetMapperDefaultOther.class,
+                kind = javax.tools.Diagnostic.Kind.WARNING,
+                line = 37,
+                messageRegExp = "Unmapped target property: \"bar\"\\. Mapping from property \"org\\.mapstruct\\.ap\\" +
+                    ".test\\.accessibility\\.referenced\\.ReferencedSource referencedSource\" to \"org\\.mapstruct\\" +
+                    ".ap\\.test\\.accessibility\\.referenced\\.ReferencedTarget referencedTarget\"")
+        }
     )
-    public void shouldNotBeAbleToAccessDefaultMethodInReferencedInOtherPackage() throws Exception { }
+    public void shouldNotBeAbleToAccessDefaultMethodInReferencedInOtherPackage() throws Exception {
+        generatedSource.addComparisonToFixtureFor( SourceTargetMapperDefaultOther.class );
+    }
 
     @Test
     @IssueKey( "206" )
@@ -85,18 +94,20 @@ public class ReferencedAccessibilityTest {
     public void shouldBeAbleToAccessProtectedMethodInBase() throws Exception { }
 
     @Test
-    @IssueKey( "206" )
-    @WithClasses( { ErroneousAbstractSourceTargetMapperPrivate.class, SourceTargetmapperPrivateBase.class } )
+    @IssueKey("206")
+    @WithClasses({ AbstractSourceTargetMapperPrivate.class, SourceTargetmapperPrivateBase.class })
     @ExpectedCompilationOutcome(
-            value = CompilationResult.FAILED,
-            diagnostics = {
-                @Diagnostic( type = ErroneousAbstractSourceTargetMapperPrivate.class,
-                        kind = javax.tools.Diagnostic.Kind.ERROR,
-                        line = 36,
-                        messageRegExp = "Can't map property \"org\\.mapstruct\\.ap\\.test\\.accessibility\\."
-                                + "referenced\\.ReferencedSource referencedSource\" to \"org\\.mapstruct\\."
-                                + "ap\\.test\\.accessibility\\.referenced\\.ReferencedTarget referencedTarget\"" )
-            }
+        value = CompilationResult.SUCCEEDED,
+        diagnostics = {
+            @Diagnostic(type = AbstractSourceTargetMapperPrivate.class,
+                kind = javax.tools.Diagnostic.Kind.WARNING,
+                line = 36,
+                messageRegExp = "Unmapped target property: \"bar\"\\. Mapping from property \"org\\.mapstruct\\.ap\\" +
+                    ".test\\.accessibility\\.referenced\\.ReferencedSource referencedSource\" to \"org\\.mapstruct\\" +
+                    ".ap\\.test\\.accessibility\\.referenced\\.ReferencedTarget referencedTarget\"")
+        }
     )
-    public void shouldNotBeAbleToAccessPrivateMethodInBase() throws Exception { }
+    public void shouldNotBeAbleToAccessPrivateMethodInBase() throws Exception {
+        generatedSource.addComparisonToFixtureFor( AbstractSourceTargetMapperPrivate.class );
+    }
 }
diff --git a/processor/src/test/java/org/mapstruct/ap/test/accessibility/referenced/ErroneousSourceTargetMapperDefaultOther.java b/processor/src/test/java/org/mapstruct/ap/test/accessibility/referenced/SourceTargetMapperDefaultOther.java
similarity index 86%
rename from processor/src/test/java/org/mapstruct/ap/test/accessibility/referenced/ErroneousSourceTargetMapperDefaultOther.java
rename to processor/src/test/java/org/mapstruct/ap/test/accessibility/referenced/SourceTargetMapperDefaultOther.java
index ffd74f9d6..e075d088d 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/accessibility/referenced/ErroneousSourceTargetMapperDefaultOther.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/accessibility/referenced/SourceTargetMapperDefaultOther.java
@@ -28,10 +28,10 @@ import org.mapstruct.factory.Mappers;
  * @author Sjaak Derksen
  */
 @Mapper(uses = ReferencedMapperDefaultOther.class)
-public interface ErroneousSourceTargetMapperDefaultOther {
+public interface SourceTargetMapperDefaultOther {
 
-    ErroneousSourceTargetMapperDefaultOther INSTANCE =
-        Mappers.getMapper( ErroneousSourceTargetMapperDefaultOther.class );
+    SourceTargetMapperDefaultOther INSTANCE =
+        Mappers.getMapper( SourceTargetMapperDefaultOther.class );
 
     @Mapping(source = "referencedSource", target = "referencedTarget")
     Target toTarget(Source source);
diff --git a/processor/src/test/java/org/mapstruct/ap/test/accessibility/referenced/ErroneousSourceTargetMapperPrivate.java b/processor/src/test/java/org/mapstruct/ap/test/accessibility/referenced/SourceTargetMapperPrivate.java
similarity index 87%
rename from processor/src/test/java/org/mapstruct/ap/test/accessibility/referenced/ErroneousSourceTargetMapperPrivate.java
rename to processor/src/test/java/org/mapstruct/ap/test/accessibility/referenced/SourceTargetMapperPrivate.java
index ff5371f86..9a7c08077 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/accessibility/referenced/ErroneousSourceTargetMapperPrivate.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/accessibility/referenced/SourceTargetMapperPrivate.java
@@ -27,9 +27,9 @@ import org.mapstruct.factory.Mappers;
  * @author Sjaak Derksen
  */
 @Mapper(uses = ReferencedMapperPrivate.class)
-public interface ErroneousSourceTargetMapperPrivate {
+public interface SourceTargetMapperPrivate {
 
-    ErroneousSourceTargetMapperPrivate INSTANCE = Mappers.getMapper( ErroneousSourceTargetMapperPrivate.class );
+    SourceTargetMapperPrivate INSTANCE = Mappers.getMapper( SourceTargetMapperPrivate.class );
 
     @Mapping(source = "referencedSource", target = "referencedTarget")
     Target toTarget(Source source);
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/DottedErrorMessageTest.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/DottedErrorMessageTest.java
index 8fb7c3e2c..4fbf16812 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/DottedErrorMessageTest.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/DottedErrorMessageTest.java
@@ -21,40 +21,58 @@ package org.mapstruct.ap.test.nestedbeans;
 import org.junit.Test;
 
 import org.junit.runner.RunWith;
-import org.mapstruct.ap.test.nestedbeans.erroneous.Computer;
-import org.mapstruct.ap.test.nestedbeans.erroneous.ComputerDto;
-import org.mapstruct.ap.test.nestedbeans.erroneous.Dictionary;
-import org.mapstruct.ap.test.nestedbeans.erroneous.DictionaryDto;
-import org.mapstruct.ap.test.nestedbeans.erroneous.ForeignWord;
-import org.mapstruct.ap.test.nestedbeans.erroneous.ForeignWordDto;
-import org.mapstruct.ap.test.nestedbeans.erroneous.Cat;
-import org.mapstruct.ap.test.nestedbeans.erroneous.CatDto;
-import org.mapstruct.ap.test.nestedbeans.erroneous.Info;
-import org.mapstruct.ap.test.nestedbeans.erroneous.InfoDto;
-import org.mapstruct.ap.test.nestedbeans.erroneous.RoofTypeMapper;
-import org.mapstruct.ap.test.nestedbeans.erroneous.UnmappableCollectionElementPropertyMapper;
-import org.mapstruct.ap.test.nestedbeans.erroneous.UnmappableDeepListMapper;
-import org.mapstruct.ap.test.nestedbeans.erroneous.UnmappableDeepMapKeyMapper;
-import org.mapstruct.ap.test.nestedbeans.erroneous.UnmappableDeepMapValueMapper;
-import org.mapstruct.ap.test.nestedbeans.erroneous.UnmappableEnumMapper;
-import org.mapstruct.ap.test.nestedbeans.erroneous.UnmappableValuePropertyMapper;
-import org.mapstruct.ap.test.nestedbeans.erroneous.UserDto;
-import org.mapstruct.ap.test.nestedbeans.erroneous.User;
-import org.mapstruct.ap.test.nestedbeans.erroneous.WheelDto;
-import org.mapstruct.ap.test.nestedbeans.erroneous.Wheel;
-import org.mapstruct.ap.test.nestedbeans.erroneous.Car;
-import org.mapstruct.ap.test.nestedbeans.erroneous.CarDto;
-import org.mapstruct.ap.test.nestedbeans.erroneous.ExternalRoofType;
-import org.mapstruct.ap.test.nestedbeans.erroneous.House;
-import org.mapstruct.ap.test.nestedbeans.erroneous.HouseDto;
-import org.mapstruct.ap.test.nestedbeans.erroneous.Color;
-import org.mapstruct.ap.test.nestedbeans.erroneous.ColorDto;
-import org.mapstruct.ap.test.nestedbeans.erroneous.Roof;
-import org.mapstruct.ap.test.nestedbeans.erroneous.RoofType;
-import org.mapstruct.ap.test.nestedbeans.erroneous.RoofDto;
-import org.mapstruct.ap.test.nestedbeans.erroneous.UnmappableDeepNestingMapper;
-import org.mapstruct.ap.test.nestedbeans.erroneous.Word;
-import org.mapstruct.ap.test.nestedbeans.erroneous.WordDto;
+import org.mapstruct.ap.test.nestedbeans.unmappable.BaseCollectionElementPropertyMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.BaseDeepListMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.BaseDeepMapKeyMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.BaseDeepMapValueMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.BaseDeepNestingMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.BaseValuePropertyMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.Computer;
+import org.mapstruct.ap.test.nestedbeans.unmappable.ComputerDto;
+import org.mapstruct.ap.test.nestedbeans.unmappable.Dictionary;
+import org.mapstruct.ap.test.nestedbeans.unmappable.DictionaryDto;
+import org.mapstruct.ap.test.nestedbeans.unmappable.ForeignWord;
+import org.mapstruct.ap.test.nestedbeans.unmappable.ForeignWordDto;
+import org.mapstruct.ap.test.nestedbeans.unmappable.Cat;
+import org.mapstruct.ap.test.nestedbeans.unmappable.CatDto;
+import org.mapstruct.ap.test.nestedbeans.unmappable.Info;
+import org.mapstruct.ap.test.nestedbeans.unmappable.InfoDto;
+import org.mapstruct.ap.test.nestedbeans.unmappable.RoofTypeMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.erroneous.UnmappableCollectionElementPropertyMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.erroneous.UnmappableDeepListMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.erroneous.UnmappableDeepMapKeyMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.erroneous.UnmappableDeepMapValueMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.erroneous.UnmappableEnumMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.erroneous.UnmappableValuePropertyMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.ignore.UnmappableIgnoreCollectionElementPropertyMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.ignore.UnmappableIgnoreDeepListMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.ignore.UnmappableIgnoreDeepMapKeyMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.ignore.UnmappableIgnoreDeepMapValueMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.ignore.UnmappableIgnoreDeepNestingMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.ignore.UnmappableIgnoreValuePropertyMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.warn.UnmappableWarnCollectionElementPropertyMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.warn.UnmappableWarnDeepListMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.warn.UnmappableWarnDeepMapKeyMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.warn.UnmappableWarnDeepMapValueMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.warn.UnmappableWarnDeepNestingMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.warn.UnmappableWarnValuePropertyMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.UserDto;
+import org.mapstruct.ap.test.nestedbeans.unmappable.User;
+import org.mapstruct.ap.test.nestedbeans.unmappable.WheelDto;
+import org.mapstruct.ap.test.nestedbeans.unmappable.Wheel;
+import org.mapstruct.ap.test.nestedbeans.unmappable.Car;
+import org.mapstruct.ap.test.nestedbeans.unmappable.CarDto;
+import org.mapstruct.ap.test.nestedbeans.unmappable.ExternalRoofType;
+import org.mapstruct.ap.test.nestedbeans.unmappable.House;
+import org.mapstruct.ap.test.nestedbeans.unmappable.HouseDto;
+import org.mapstruct.ap.test.nestedbeans.unmappable.Color;
+import org.mapstruct.ap.test.nestedbeans.unmappable.ColorDto;
+import org.mapstruct.ap.test.nestedbeans.unmappable.Roof;
+import org.mapstruct.ap.test.nestedbeans.unmappable.RoofType;
+import org.mapstruct.ap.test.nestedbeans.unmappable.RoofDto;
+import org.mapstruct.ap.test.nestedbeans.unmappable.erroneous.UnmappableDeepNestingMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.Word;
+import org.mapstruct.ap.test.nestedbeans.unmappable.WordDto;
 import org.mapstruct.ap.testutil.WithClasses;
 import org.mapstruct.ap.testutil.compilation.annotation.CompilationResult;
 import org.mapstruct.ap.testutil.compilation.annotation.Diagnostic;
@@ -69,7 +87,13 @@ import org.mapstruct.ap.testutil.runner.AnnotationProcessorTestRunner;
     Dictionary.class, DictionaryDto.class, Word.class, WordDto.class,
     ForeignWord.class, ForeignWordDto.class,
     Computer.class, ComputerDto.class,
-    Cat.class, CatDto.class, Info.class, InfoDto.class
+    Cat.class, CatDto.class, Info.class, InfoDto.class,
+    BaseCollectionElementPropertyMapper.class,
+    BaseDeepListMapper.class,
+    BaseDeepMapKeyMapper.class,
+    BaseDeepMapValueMapper.class,
+    BaseDeepNestingMapper.class,
+    BaseValuePropertyMapper.class
 })
 @RunWith(AnnotationProcessorTestRunner.class)
 public class DottedErrorMessageTest {
@@ -86,12 +110,11 @@ public class DottedErrorMessageTest {
     @ExpectedCompilationOutcome(
         value = CompilationResult.FAILED,
         diagnostics = {
-            @Diagnostic(type = UnmappableDeepNestingMapper.class,
+            @Diagnostic(type = BaseDeepNestingMapper.class,
                 kind = javax.tools.Diagnostic.Kind.ERROR,
-                line = 26,
-                messageRegExp = "Can't map " + PROPERTY +
-                    " \".*Color house\\.roof\\.color\" to \".*house\\.roof\\.color\"\\. " +
-                    "Consider to declare/implement a mapping method: \".*ColorDto map\\(.*Color value\\)\"\\.")
+                line = 23,
+                messageRegExp = "Unmapped target property: \"rgb\"\\. Mapping from " + PROPERTY +
+                    " \".*Color house\\.roof\\.color\" to \".*ColorDto house\\.roof\\.color\"\\.")
         }
     )
     public void testDeepNestedBeans() {
@@ -104,12 +127,11 @@ public class DottedErrorMessageTest {
     @ExpectedCompilationOutcome(
         value = CompilationResult.FAILED,
         diagnostics = {
-            @Diagnostic(type = UnmappableDeepListMapper.class,
+            @Diagnostic(type = BaseDeepListMapper.class,
                 kind = javax.tools.Diagnostic.Kind.ERROR,
-                line = 26,
-                messageRegExp = "Can't map " + COLLECTION_ELEMENT +
-                    " \".*Wheel car\\.wheels\" to \".*car\\.wheels\"\\. " +
-                    "Consider to declare/implement a mapping method: \".*WheelDto map\\(.*Wheel value\\)\"\\.")
+                line = 23,
+                messageRegExp = "Unmapped target property: \"left\"\\. Mapping from " + COLLECTION_ELEMENT +
+                    " \".*Wheel car\\.wheels\" to \".*WheelDto car\\.wheels\"\\.")
         }
     )
     public void testIterables() {
@@ -122,12 +144,11 @@ public class DottedErrorMessageTest {
     @ExpectedCompilationOutcome(
         value = CompilationResult.FAILED,
         diagnostics = {
-            @Diagnostic(type = UnmappableDeepMapKeyMapper.class,
+            @Diagnostic(type = BaseDeepMapKeyMapper.class,
                 kind = javax.tools.Diagnostic.Kind.ERROR,
-                line = 26,
-                messageRegExp = "Can't map " + MAP_KEY +
-                    " \".*Word dictionary\\.wordMap\\{:key\\}\" to \".*dictionary\\.wordMap\\{:key\\}\"\\. " +
-                    "Consider to declare/implement a mapping method: \".*WordDto map\\(.*Word value\\)\"\\.")
+                line = 23,
+                messageRegExp = "Unmapped target property: \"pronunciation\"\\. Mapping from " + MAP_KEY +
+                    " \".*Word dictionary\\.wordMap\\{:key\\}\" to \".*WordDto dictionary\\.wordMap\\{:key\\}\"\\.")
         }
     )
     public void testMapKeys() {
@@ -140,14 +161,12 @@ public class DottedErrorMessageTest {
     @ExpectedCompilationOutcome(
         value = CompilationResult.FAILED,
         diagnostics = {
-            @Diagnostic(type = UnmappableDeepMapValueMapper.class,
+            @Diagnostic(type = BaseDeepMapValueMapper.class,
                 kind = javax.tools.Diagnostic.Kind.ERROR,
-                line = 26,
-                messageRegExp = "Can't map " + MAP_VALUE +
+                line = 23,
+                messageRegExp = "Unmapped target property: \"pronunciation\"\\. Mapping from " + MAP_VALUE +
                     " \".*ForeignWord dictionary\\.wordMap\\{:value\\}\" " +
-                    "to \".*dictionary\\.wordMap\\{:value\\}\"\\. " +
-                    "Consider to declare/implement a mapping method: " +
-                    "\".*ForeignWordDto map\\(.*ForeignWord value\\)\"\\.")
+                    "to \".*ForeignWordDto dictionary\\.wordMap\\{:value\\}\"\\.")
         }
     )
     public void testMapValues() {
@@ -160,12 +179,11 @@ public class DottedErrorMessageTest {
     @ExpectedCompilationOutcome(
         value = CompilationResult.FAILED,
         diagnostics = {
-            @Diagnostic(type = UnmappableCollectionElementPropertyMapper.class,
+            @Diagnostic(type = BaseCollectionElementPropertyMapper.class,
                 kind = javax.tools.Diagnostic.Kind.ERROR,
-                line = 26,
-                messageRegExp = "Can't map " + PROPERTY +
-                    " \".*Info computers\\[\\].info\" to \".*computers\\[\\].info\"\\. " +
-                    "Consider to declare/implement a mapping method: \".*InfoDto map\\(.*Info value\\)\"\\.")
+                line = 23,
+                messageRegExp = "Unmapped target property: \"color\"\\. Mapping from " + PROPERTY +
+                    " \".*Info computers\\[\\].info\" to \".*InfoDto computers\\[\\].info\"\\.")
         }
     )
     public void testCollectionElementProperty() {
@@ -178,12 +196,11 @@ public class DottedErrorMessageTest {
     @ExpectedCompilationOutcome(
         value = CompilationResult.FAILED,
         diagnostics = {
-            @Diagnostic(type = UnmappableValuePropertyMapper.class,
+            @Diagnostic(type = BaseValuePropertyMapper.class,
                 kind = javax.tools.Diagnostic.Kind.ERROR,
-                line = 26,
-                messageRegExp = "Can't map " + PROPERTY +
-                    " \".*Info catNameMap\\{:value\\}.info\" to \".*catNameMap\\{:value\\}.info\"\\. " +
-                    "Consider to declare/implement a mapping method: \".*InfoDto map\\(.*Info value\\)\"\\.")
+                line = 23,
+                messageRegExp = "Unmapped target property: \"color\"\\. Mapping from " + PROPERTY +
+                    " \".*Info catNameMap\\{:value\\}.info\" to \".*InfoDto catNameMap\\{:value\\}.info\"\\.")
         }
     )
     public void testMapValueProperty() {
@@ -198,7 +215,7 @@ public class DottedErrorMessageTest {
         diagnostics = {
             @Diagnostic(type = UnmappableEnumMapper.class,
                 kind = javax.tools.Diagnostic.Kind.ERROR,
-                line = 26,
+                line = 38,
                 messageRegExp = "The following constants from the property \".*RoofType house\\.roof\\.type\" enum " +
                     "have no corresponding constant in the \".*ExternalRoofType house\\.roof\\.type\" enum and must " +
                     "be be mapped via adding additional mappings: NORMAL\\."
@@ -207,4 +224,67 @@ public class DottedErrorMessageTest {
     )
     public void testMapEnumProperty() {
     }
+
+    @Test
+    @WithClasses({
+        UnmappableWarnDeepNestingMapper.class,
+        UnmappableWarnDeepListMapper.class,
+        UnmappableWarnDeepMapKeyMapper.class,
+        UnmappableWarnDeepMapValueMapper.class,
+        UnmappableWarnCollectionElementPropertyMapper.class,
+        UnmappableWarnValuePropertyMapper.class
+    })
+    @ExpectedCompilationOutcome(
+        value = CompilationResult.SUCCEEDED,
+        diagnostics = {
+            @Diagnostic(type = BaseDeepNestingMapper.class,
+                kind = javax.tools.Diagnostic.Kind.WARNING,
+                line = 23,
+                messageRegExp = "Unmapped target property: \"rgb\"\\. Mapping from " + PROPERTY +
+                    " \".*Color house\\.roof\\.color\" to \".*ColorDto house\\.roof\\.color\"\\."),
+            @Diagnostic(type = BaseDeepListMapper.class,
+                kind = javax.tools.Diagnostic.Kind.WARNING,
+                line = 23,
+                messageRegExp = "Unmapped target property: \"left\"\\. Mapping from " + COLLECTION_ELEMENT +
+                    " \".*Wheel car\\.wheels\" to \".*WheelDto car\\.wheels\"\\."),
+            @Diagnostic(type = BaseDeepMapKeyMapper.class,
+                kind = javax.tools.Diagnostic.Kind.WARNING,
+                line = 23,
+                messageRegExp = "Unmapped target property: \"pronunciation\"\\. Mapping from " + MAP_KEY +
+                    " \".*Word dictionary\\.wordMap\\{:key\\}\" to \".*WordDto dictionary\\.wordMap\\{:key\\}\"\\."),
+            @Diagnostic(type = BaseDeepMapValueMapper.class,
+                kind = javax.tools.Diagnostic.Kind.WARNING,
+                line = 23,
+                messageRegExp = "Unmapped target property: \"pronunciation\"\\. Mapping from " + MAP_VALUE +
+                    " \".*ForeignWord dictionary\\.wordMap\\{:value\\}\" " +
+                    "to \".*ForeignWordDto dictionary\\.wordMap\\{:value\\}\"\\."),
+            @Diagnostic(type = BaseCollectionElementPropertyMapper.class,
+                kind = javax.tools.Diagnostic.Kind.WARNING,
+                line = 23,
+                messageRegExp = "Unmapped target property: \"color\"\\. Mapping from " + PROPERTY +
+                    " \".*Info computers\\[\\].info\" to \".*InfoDto computers\\[\\].info\"\\."),
+            @Diagnostic(type = BaseValuePropertyMapper.class,
+                kind = javax.tools.Diagnostic.Kind.WARNING,
+                line = 23,
+                messageRegExp = "Unmapped target property: \"color\"\\. Mapping from " + PROPERTY +
+                    " \".*Info catNameMap\\{:value\\}.info\" to \".*InfoDto catNameMap\\{:value\\}.info\"\\.")
+        }
+    )
+    public void testWarnUnmappedTargetProperties() {
+    }
+
+    @Test
+    @WithClasses({
+        UnmappableIgnoreDeepNestingMapper.class,
+        UnmappableIgnoreDeepListMapper.class,
+        UnmappableIgnoreDeepMapKeyMapper.class,
+        UnmappableIgnoreDeepMapValueMapper.class,
+        UnmappableIgnoreCollectionElementPropertyMapper.class,
+        UnmappableIgnoreValuePropertyMapper.class
+    })
+    @ExpectedCompilationOutcome(
+        value = CompilationResult.SUCCEEDED
+    )
+    public void testIgnoreUnmappedTargetProperties() {
+    }
 }
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/UnmappableCollectionElementPropertyMapper.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/BaseCollectionElementPropertyMapper.java
similarity index 82%
rename from processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/UnmappableCollectionElementPropertyMapper.java
rename to processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/BaseCollectionElementPropertyMapper.java
index 6005e977d..142a28ac1 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/UnmappableCollectionElementPropertyMapper.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/BaseCollectionElementPropertyMapper.java
@@ -16,14 +16,11 @@
  *  See the License for the specific language governing permissions and
  *  limitations under the License.
  */
-package org.mapstruct.ap.test.nestedbeans.erroneous;
+package org.mapstruct.ap.test.nestedbeans.unmappable;
 
-import org.mapstruct.Mapper;
+public abstract class BaseCollectionElementPropertyMapper {
 
-@Mapper(uses = RoofTypeMapper.class)
-public abstract class UnmappableCollectionElementPropertyMapper {
-
-    abstract UserDto userToUserDto(User user);
+    public abstract UserDto userToUserDto(User user);
 
     public HouseDto map(House house) {
         return new HouseDto();
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/UnmappableDeepListMapper.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/BaseDeepListMapper.java
similarity index 84%
rename from processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/UnmappableDeepListMapper.java
rename to processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/BaseDeepListMapper.java
index 990505aa9..096c96c16 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/UnmappableDeepListMapper.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/BaseDeepListMapper.java
@@ -16,14 +16,11 @@
  *  See the License for the specific language governing permissions and
  *  limitations under the License.
  */
-package org.mapstruct.ap.test.nestedbeans.erroneous;
+package org.mapstruct.ap.test.nestedbeans.unmappable;
 
-import org.mapstruct.Mapper;
+public abstract class BaseDeepListMapper {
 
-@Mapper(uses = RoofTypeMapper.class)
-public abstract class UnmappableDeepListMapper {
-
-    abstract UserDto userToUserDto(User user);
+    public abstract UserDto userToUserDto(User user);
 
     public HouseDto map(House house) {
         return new HouseDto();
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/UnmappableDeepMapKeyMapper.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/BaseDeepMapKeyMapper.java
similarity index 84%
rename from processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/UnmappableDeepMapKeyMapper.java
rename to processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/BaseDeepMapKeyMapper.java
index 371882c80..0bddbb41b 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/UnmappableDeepMapKeyMapper.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/BaseDeepMapKeyMapper.java
@@ -16,14 +16,11 @@
  *  See the License for the specific language governing permissions and
  *  limitations under the License.
  */
-package org.mapstruct.ap.test.nestedbeans.erroneous;
+package org.mapstruct.ap.test.nestedbeans.unmappable;
 
-import org.mapstruct.Mapper;
+public abstract class BaseDeepMapKeyMapper {
 
-@Mapper(uses = RoofTypeMapper.class)
-public abstract class UnmappableDeepMapKeyMapper {
-
-    abstract UserDto userToUserDto(User user);
+    public abstract UserDto userToUserDto(User user);
 
     public CarDto map(Car carDto) {
         return new CarDto();
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/UnmappableDeepMapValueMapper.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/BaseDeepMapValueMapper.java
similarity index 84%
rename from processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/UnmappableDeepMapValueMapper.java
rename to processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/BaseDeepMapValueMapper.java
index ecd6255b2..bdf2c79c9 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/UnmappableDeepMapValueMapper.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/BaseDeepMapValueMapper.java
@@ -16,14 +16,11 @@
  *  See the License for the specific language governing permissions and
  *  limitations under the License.
  */
-package org.mapstruct.ap.test.nestedbeans.erroneous;
+package org.mapstruct.ap.test.nestedbeans.unmappable;
 
-import org.mapstruct.Mapper;
+public abstract class BaseDeepMapValueMapper {
 
-@Mapper(uses = RoofTypeMapper.class)
-public abstract class UnmappableDeepMapValueMapper {
-
-    abstract UserDto userToUserDto(User user);
+    public abstract UserDto userToUserDto(User user);
 
     public CarDto map(Car carDto) {
         return new CarDto();
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/UnmappableDeepNestingMapper.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/BaseDeepNestingMapper.java
similarity index 83%
rename from processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/UnmappableDeepNestingMapper.java
rename to processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/BaseDeepNestingMapper.java
index b898f310a..bb461612a 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/UnmappableDeepNestingMapper.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/BaseDeepNestingMapper.java
@@ -16,14 +16,11 @@
  *  See the License for the specific language governing permissions and
  *  limitations under the License.
  */
-package org.mapstruct.ap.test.nestedbeans.erroneous;
+package org.mapstruct.ap.test.nestedbeans.unmappable;
 
-import org.mapstruct.Mapper;
+public abstract class BaseDeepNestingMapper {
 
-@Mapper(uses = RoofTypeMapper.class)
-public abstract class UnmappableDeepNestingMapper {
-
-    abstract UserDto userToUserDto(User user);
+    public abstract UserDto userToUserDto(User user);
 
     public CarDto map(Car carDto) {
         return new CarDto();
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/UnmappableValuePropertyMapper.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/BaseValuePropertyMapper.java
similarity index 83%
rename from processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/UnmappableValuePropertyMapper.java
rename to processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/BaseValuePropertyMapper.java
index 84d6ae826..e78fa0a0f 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/UnmappableValuePropertyMapper.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/BaseValuePropertyMapper.java
@@ -16,14 +16,11 @@
  *  See the License for the specific language governing permissions and
  *  limitations under the License.
  */
-package org.mapstruct.ap.test.nestedbeans.erroneous;
+package org.mapstruct.ap.test.nestedbeans.unmappable;
 
-import org.mapstruct.Mapper;
+public abstract class BaseValuePropertyMapper {
 
-@Mapper(uses = RoofTypeMapper.class)
-public abstract class UnmappableValuePropertyMapper {
-
-    abstract UserDto userToUserDto(User user);
+    public abstract UserDto userToUserDto(User user);
 
     public HouseDto map(House house) {
         return new HouseDto();
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/Car.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/Car.java
similarity index 96%
rename from processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/Car.java
rename to processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/Car.java
index b74ed368e..d1ce244bb 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/Car.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/Car.java
@@ -16,7 +16,7 @@
  *  See the License for the specific language governing permissions and
  *  limitations under the License.
  */
-package org.mapstruct.ap.test.nestedbeans.erroneous;
+package org.mapstruct.ap.test.nestedbeans.unmappable;
 
 import java.util.List;
 
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/CarDto.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/CarDto.java
similarity index 96%
rename from processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/CarDto.java
rename to processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/CarDto.java
index d8c9a80e6..a4b118b84 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/CarDto.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/CarDto.java
@@ -16,7 +16,7 @@
  *  See the License for the specific language governing permissions and
  *  limitations under the License.
  */
-package org.mapstruct.ap.test.nestedbeans.erroneous;
+package org.mapstruct.ap.test.nestedbeans.unmappable;
 
 import java.util.List;
 
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/Cat.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/Cat.java
similarity index 94%
rename from processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/Cat.java
rename to processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/Cat.java
index c5ed659ba..17bd0533a 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/Cat.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/Cat.java
@@ -16,7 +16,7 @@
  *  See the License for the specific language governing permissions and
  *  limitations under the License.
  */
-package org.mapstruct.ap.test.nestedbeans.erroneous;
+package org.mapstruct.ap.test.nestedbeans.unmappable;
 
 public class Cat {
 
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/CatDto.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/CatDto.java
similarity index 94%
rename from processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/CatDto.java
rename to processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/CatDto.java
index cf3321730..2c80ed1a9 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/CatDto.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/CatDto.java
@@ -16,7 +16,7 @@
  *  See the License for the specific language governing permissions and
  *  limitations under the License.
  */
-package org.mapstruct.ap.test.nestedbeans.erroneous;
+package org.mapstruct.ap.test.nestedbeans.unmappable;
 
 public class CatDto {
 
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/Color.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/Color.java
similarity index 95%
rename from processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/Color.java
rename to processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/Color.java
index eddc7dfe7..75ecd4dc1 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/Color.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/Color.java
@@ -16,7 +16,7 @@
  *  See the License for the specific language governing permissions and
  *  limitations under the License.
  */
-package org.mapstruct.ap.test.nestedbeans.erroneous;
+package org.mapstruct.ap.test.nestedbeans.unmappable;
 
 public class Color {
     private String cmyk;
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/ColorDto.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/ColorDto.java
similarity index 94%
rename from processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/ColorDto.java
rename to processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/ColorDto.java
index 30eb26140..64f28c0d2 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/ColorDto.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/ColorDto.java
@@ -16,7 +16,7 @@
  *  See the License for the specific language governing permissions and
  *  limitations under the License.
  */
-package org.mapstruct.ap.test.nestedbeans.erroneous;
+package org.mapstruct.ap.test.nestedbeans.unmappable;
 
 public class ColorDto {
     private String rgb;
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/Computer.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/Computer.java
similarity index 94%
rename from processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/Computer.java
rename to processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/Computer.java
index 6cd2bee32..8985bade3 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/Computer.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/Computer.java
@@ -16,7 +16,7 @@
  *  See the License for the specific language governing permissions and
  *  limitations under the License.
  */
-package org.mapstruct.ap.test.nestedbeans.erroneous;
+package org.mapstruct.ap.test.nestedbeans.unmappable;
 
 public class Computer {
 
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/ComputerDto.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/ComputerDto.java
similarity index 94%
rename from processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/ComputerDto.java
rename to processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/ComputerDto.java
index 660ec226f..c48e47c83 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/ComputerDto.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/ComputerDto.java
@@ -16,7 +16,7 @@
  *  See the License for the specific language governing permissions and
  *  limitations under the License.
  */
-package org.mapstruct.ap.test.nestedbeans.erroneous;
+package org.mapstruct.ap.test.nestedbeans.unmappable;
 
 public class ComputerDto {
 
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/Dictionary.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/Dictionary.java
similarity index 95%
rename from processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/Dictionary.java
rename to processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/Dictionary.java
index 3ac5a27f5..1ef1e5945 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/Dictionary.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/Dictionary.java
@@ -16,7 +16,7 @@
  *  See the License for the specific language governing permissions and
  *  limitations under the License.
  */
-package org.mapstruct.ap.test.nestedbeans.erroneous;
+package org.mapstruct.ap.test.nestedbeans.unmappable;
 
 import java.util.Map;
 
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/DictionaryDto.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/DictionaryDto.java
similarity index 95%
rename from processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/DictionaryDto.java
rename to processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/DictionaryDto.java
index 21e55f7d5..787453718 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/DictionaryDto.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/DictionaryDto.java
@@ -16,7 +16,7 @@
  *  See the License for the specific language governing permissions and
  *  limitations under the License.
  */
-package org.mapstruct.ap.test.nestedbeans.erroneous;
+package org.mapstruct.ap.test.nestedbeans.unmappable;
 
 import java.util.Map;
 
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/ExternalRoofType.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/ExternalRoofType.java
similarity index 94%
rename from processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/ExternalRoofType.java
rename to processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/ExternalRoofType.java
index c7b5ac101..61e42d9ca 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/ExternalRoofType.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/ExternalRoofType.java
@@ -16,7 +16,7 @@
  *  See the License for the specific language governing permissions and
  *  limitations under the License.
  */
-package org.mapstruct.ap.test.nestedbeans.erroneous;
+package org.mapstruct.ap.test.nestedbeans.unmappable;
 
 
 /**
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/ForeignWord.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/ForeignWord.java
similarity index 94%
rename from processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/ForeignWord.java
rename to processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/ForeignWord.java
index 1b94862d8..436fd65b4 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/ForeignWord.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/ForeignWord.java
@@ -16,7 +16,7 @@
  *  See the License for the specific language governing permissions and
  *  limitations under the License.
  */
-package org.mapstruct.ap.test.nestedbeans.erroneous;
+package org.mapstruct.ap.test.nestedbeans.unmappable;
 
 public class ForeignWord {
 
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/ForeignWordDto.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/ForeignWordDto.java
similarity index 95%
rename from processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/ForeignWordDto.java
rename to processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/ForeignWordDto.java
index 3f64cc9c0..0c2298869 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/ForeignWordDto.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/ForeignWordDto.java
@@ -16,7 +16,7 @@
  *  See the License for the specific language governing permissions and
  *  limitations under the License.
  */
-package org.mapstruct.ap.test.nestedbeans.erroneous;
+package org.mapstruct.ap.test.nestedbeans.unmappable;
 
 public class ForeignWordDto {
     private String pronunciation;
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/House.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/House.java
similarity index 95%
rename from processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/House.java
rename to processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/House.java
index 0f7ae15dc..05f58a9b8 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/House.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/House.java
@@ -16,7 +16,7 @@
  *  See the License for the specific language governing permissions and
  *  limitations under the License.
  */
-package org.mapstruct.ap.test.nestedbeans.erroneous;
+package org.mapstruct.ap.test.nestedbeans.unmappable;
 
 public class House {
 
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/HouseDto.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/HouseDto.java
similarity index 95%
rename from processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/HouseDto.java
rename to processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/HouseDto.java
index 19e95b637..76623d419 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/HouseDto.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/HouseDto.java
@@ -16,7 +16,7 @@
  *  See the License for the specific language governing permissions and
  *  limitations under the License.
  */
-package org.mapstruct.ap.test.nestedbeans.erroneous;
+package org.mapstruct.ap.test.nestedbeans.unmappable;
 
 public class HouseDto {
 
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/Info.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/Info.java
similarity index 94%
rename from processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/Info.java
rename to processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/Info.java
index 8bbb21d40..d78d41b9f 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/Info.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/Info.java
@@ -16,7 +16,7 @@
  *  See the License for the specific language governing permissions and
  *  limitations under the License.
  */
-package org.mapstruct.ap.test.nestedbeans.erroneous;
+package org.mapstruct.ap.test.nestedbeans.unmappable;
 
 public class Info {
     private String size;
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/InfoDto.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/InfoDto.java
similarity index 94%
rename from processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/InfoDto.java
rename to processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/InfoDto.java
index b8a804aef..e8e1c0ba0 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/InfoDto.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/InfoDto.java
@@ -16,7 +16,7 @@
  *  See the License for the specific language governing permissions and
  *  limitations under the License.
  */
-package org.mapstruct.ap.test.nestedbeans.erroneous;
+package org.mapstruct.ap.test.nestedbeans.unmappable;
 
 public class InfoDto {
     private String color;
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/Roof.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/Roof.java
similarity index 95%
rename from processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/Roof.java
rename to processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/Roof.java
index facb66842..8670355d6 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/Roof.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/Roof.java
@@ -16,7 +16,7 @@
  *  See the License for the specific language governing permissions and
  *  limitations under the License.
  */
-package org.mapstruct.ap.test.nestedbeans.erroneous;
+package org.mapstruct.ap.test.nestedbeans.unmappable;
 
 public class Roof {
     private Color color;
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/RoofDto.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/RoofDto.java
similarity index 95%
rename from processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/RoofDto.java
rename to processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/RoofDto.java
index aad665e93..8a4ac2837 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/RoofDto.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/RoofDto.java
@@ -16,7 +16,7 @@
  *  See the License for the specific language governing permissions and
  *  limitations under the License.
  */
-package org.mapstruct.ap.test.nestedbeans.erroneous;
+package org.mapstruct.ap.test.nestedbeans.unmappable;
 
 public class RoofDto {
     private ColorDto color;
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/RoofType.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/RoofType.java
similarity index 94%
rename from processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/RoofType.java
rename to processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/RoofType.java
index 2554c748f..69c75e7b5 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/RoofType.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/RoofType.java
@@ -16,7 +16,7 @@
  *  See the License for the specific language governing permissions and
  *  limitations under the License.
  */
-package org.mapstruct.ap.test.nestedbeans.erroneous;
+package org.mapstruct.ap.test.nestedbeans.unmappable;
 
 
 /**
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/RoofTypeMapper.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/RoofTypeMapper.java
similarity index 95%
rename from processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/RoofTypeMapper.java
rename to processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/RoofTypeMapper.java
index 2a54d6611..97af82875 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/RoofTypeMapper.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/RoofTypeMapper.java
@@ -16,7 +16,7 @@
  *  See the License for the specific language governing permissions and
  *  limitations under the License.
  */
-package org.mapstruct.ap.test.nestedbeans.erroneous;
+package org.mapstruct.ap.test.nestedbeans.unmappable;
 
 import org.mapstruct.Mapper;
 import org.mapstruct.ValueMapping;
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/User.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/User.java
similarity index 97%
rename from processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/User.java
rename to processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/User.java
index 10ce16b70..a183cbfef 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/User.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/User.java
@@ -16,7 +16,7 @@
  *  See the License for the specific language governing permissions and
  *  limitations under the License.
  */
-package org.mapstruct.ap.test.nestedbeans.erroneous;
+package org.mapstruct.ap.test.nestedbeans.unmappable;
 
 import java.util.List;
 import java.util.Map;
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/UserDto.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/UserDto.java
similarity index 97%
rename from processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/UserDto.java
rename to processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/UserDto.java
index 9f0048b12..7c6977fe7 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/UserDto.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/UserDto.java
@@ -16,7 +16,7 @@
  *  See the License for the specific language governing permissions and
  *  limitations under the License.
  */
-package org.mapstruct.ap.test.nestedbeans.erroneous;
+package org.mapstruct.ap.test.nestedbeans.unmappable;
 
 import java.util.List;
 import java.util.Map;
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/Wheel.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/Wheel.java
similarity index 95%
rename from processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/Wheel.java
rename to processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/Wheel.java
index 1c7102a6c..d704d5d10 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/Wheel.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/Wheel.java
@@ -16,7 +16,7 @@
  *  See the License for the specific language governing permissions and
  *  limitations under the License.
  */
-package org.mapstruct.ap.test.nestedbeans.erroneous;
+package org.mapstruct.ap.test.nestedbeans.unmappable;
 
 public class Wheel {
     private boolean front;
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/WheelDto.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/WheelDto.java
similarity index 95%
rename from processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/WheelDto.java
rename to processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/WheelDto.java
index 7e185b073..60aa9620f 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/WheelDto.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/WheelDto.java
@@ -16,7 +16,7 @@
  *  See the License for the specific language governing permissions and
  *  limitations under the License.
  */
-package org.mapstruct.ap.test.nestedbeans.erroneous;
+package org.mapstruct.ap.test.nestedbeans.unmappable;
 
 public class WheelDto {
     private boolean front;
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/Word.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/Word.java
similarity index 94%
rename from processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/Word.java
rename to processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/Word.java
index b27767783..97e4288da 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/Word.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/Word.java
@@ -16,7 +16,7 @@
  *  See the License for the specific language governing permissions and
  *  limitations under the License.
  */
-package org.mapstruct.ap.test.nestedbeans.erroneous;
+package org.mapstruct.ap.test.nestedbeans.unmappable;
 
 public class Word {
 
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/WordDto.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/WordDto.java
similarity index 95%
rename from processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/WordDto.java
rename to processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/WordDto.java
index fdce91ef2..1a0c439ff 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/WordDto.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/WordDto.java
@@ -16,7 +16,7 @@
  *  See the License for the specific language governing permissions and
  *  limitations under the License.
  */
-package org.mapstruct.ap.test.nestedbeans.erroneous;
+package org.mapstruct.ap.test.nestedbeans.unmappable;
 
 public class WordDto {
     private String pronunciation;
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/erroneous/UnmappableCollectionElementPropertyMapper.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/erroneous/UnmappableCollectionElementPropertyMapper.java
new file mode 100644
index 000000000..8c29fc296
--- /dev/null
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/erroneous/UnmappableCollectionElementPropertyMapper.java
@@ -0,0 +1,28 @@
+/**
+ *  Copyright 2012-2017 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.test.nestedbeans.unmappable.erroneous;
+
+import org.mapstruct.Mapper;
+import org.mapstruct.ReportingPolicy;
+import org.mapstruct.ap.test.nestedbeans.unmappable.BaseCollectionElementPropertyMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.RoofTypeMapper;
+
+@Mapper(uses = RoofTypeMapper.class, unmappedTargetPolicy = ReportingPolicy.ERROR)
+public abstract class UnmappableCollectionElementPropertyMapper extends BaseCollectionElementPropertyMapper {
+}
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/erroneous/UnmappableDeepListMapper.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/erroneous/UnmappableDeepListMapper.java
new file mode 100644
index 000000000..b62360a62
--- /dev/null
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/erroneous/UnmappableDeepListMapper.java
@@ -0,0 +1,28 @@
+/**
+ *  Copyright 2012-2017 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.test.nestedbeans.unmappable.erroneous;
+
+import org.mapstruct.Mapper;
+import org.mapstruct.ReportingPolicy;
+import org.mapstruct.ap.test.nestedbeans.unmappable.BaseDeepListMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.RoofTypeMapper;
+
+@Mapper(uses = RoofTypeMapper.class, unmappedTargetPolicy = ReportingPolicy.ERROR)
+public abstract class UnmappableDeepListMapper extends BaseDeepListMapper {
+}
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/erroneous/UnmappableDeepMapKeyMapper.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/erroneous/UnmappableDeepMapKeyMapper.java
new file mode 100644
index 000000000..7c5cf9a00
--- /dev/null
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/erroneous/UnmappableDeepMapKeyMapper.java
@@ -0,0 +1,28 @@
+/**
+ *  Copyright 2012-2017 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.test.nestedbeans.unmappable.erroneous;
+
+import org.mapstruct.Mapper;
+import org.mapstruct.ReportingPolicy;
+import org.mapstruct.ap.test.nestedbeans.unmappable.BaseDeepMapKeyMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.RoofTypeMapper;
+
+@Mapper(uses = RoofTypeMapper.class, unmappedTargetPolicy = ReportingPolicy.ERROR)
+public abstract class UnmappableDeepMapKeyMapper extends BaseDeepMapKeyMapper {
+}
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/erroneous/UnmappableDeepMapValueMapper.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/erroneous/UnmappableDeepMapValueMapper.java
new file mode 100644
index 000000000..8d73d3356
--- /dev/null
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/erroneous/UnmappableDeepMapValueMapper.java
@@ -0,0 +1,28 @@
+/**
+ *  Copyright 2012-2017 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.test.nestedbeans.unmappable.erroneous;
+
+import org.mapstruct.Mapper;
+import org.mapstruct.ReportingPolicy;
+import org.mapstruct.ap.test.nestedbeans.unmappable.BaseDeepMapValueMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.RoofTypeMapper;
+
+@Mapper(uses = RoofTypeMapper.class, unmappedTargetPolicy = ReportingPolicy.ERROR)
+public abstract class UnmappableDeepMapValueMapper extends BaseDeepMapValueMapper {
+}
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/erroneous/UnmappableDeepNestingMapper.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/erroneous/UnmappableDeepNestingMapper.java
new file mode 100644
index 000000000..bd9b8f0ed
--- /dev/null
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/erroneous/UnmappableDeepNestingMapper.java
@@ -0,0 +1,28 @@
+/**
+ *  Copyright 2012-2017 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.test.nestedbeans.unmappable.erroneous;
+
+import org.mapstruct.Mapper;
+import org.mapstruct.ReportingPolicy;
+import org.mapstruct.ap.test.nestedbeans.unmappable.BaseDeepNestingMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.RoofTypeMapper;
+
+@Mapper(uses = RoofTypeMapper.class, unmappedTargetPolicy = ReportingPolicy.ERROR)
+public abstract class UnmappableDeepNestingMapper extends BaseDeepNestingMapper {
+}
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/UnmappableEnumMapper.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/erroneous/UnmappableEnumMapper.java
similarity index 62%
rename from processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/UnmappableEnumMapper.java
rename to processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/erroneous/UnmappableEnumMapper.java
index 7386c5941..86a1753e4 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/erroneous/UnmappableEnumMapper.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/erroneous/UnmappableEnumMapper.java
@@ -16,9 +16,21 @@
  *  See the License for the specific language governing permissions and
  *  limitations under the License.
  */
-package org.mapstruct.ap.test.nestedbeans.erroneous;
+package org.mapstruct.ap.test.nestedbeans.unmappable.erroneous;
 
 import org.mapstruct.Mapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.Car;
+import org.mapstruct.ap.test.nestedbeans.unmappable.CarDto;
+import org.mapstruct.ap.test.nestedbeans.unmappable.Cat;
+import org.mapstruct.ap.test.nestedbeans.unmappable.CatDto;
+import org.mapstruct.ap.test.nestedbeans.unmappable.Color;
+import org.mapstruct.ap.test.nestedbeans.unmappable.ColorDto;
+import org.mapstruct.ap.test.nestedbeans.unmappable.Computer;
+import org.mapstruct.ap.test.nestedbeans.unmappable.ComputerDto;
+import org.mapstruct.ap.test.nestedbeans.unmappable.Dictionary;
+import org.mapstruct.ap.test.nestedbeans.unmappable.DictionaryDto;
+import org.mapstruct.ap.test.nestedbeans.unmappable.User;
+import org.mapstruct.ap.test.nestedbeans.unmappable.UserDto;
 
 @Mapper
 public abstract class UnmappableEnumMapper {
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/erroneous/UnmappableValuePropertyMapper.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/erroneous/UnmappableValuePropertyMapper.java
new file mode 100644
index 000000000..57d2fe510
--- /dev/null
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/erroneous/UnmappableValuePropertyMapper.java
@@ -0,0 +1,28 @@
+/**
+ *  Copyright 2012-2017 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.test.nestedbeans.unmappable.erroneous;
+
+import org.mapstruct.Mapper;
+import org.mapstruct.ReportingPolicy;
+import org.mapstruct.ap.test.nestedbeans.unmappable.BaseValuePropertyMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.RoofTypeMapper;
+
+@Mapper(uses = RoofTypeMapper.class, unmappedTargetPolicy = ReportingPolicy.ERROR)
+public abstract class UnmappableValuePropertyMapper extends BaseValuePropertyMapper {
+}
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/ignore/UnmappableIgnoreCollectionElementPropertyMapper.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/ignore/UnmappableIgnoreCollectionElementPropertyMapper.java
new file mode 100644
index 000000000..3d7b19401
--- /dev/null
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/ignore/UnmappableIgnoreCollectionElementPropertyMapper.java
@@ -0,0 +1,28 @@
+/**
+ *  Copyright 2012-2017 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.test.nestedbeans.unmappable.ignore;
+
+import org.mapstruct.Mapper;
+import org.mapstruct.ReportingPolicy;
+import org.mapstruct.ap.test.nestedbeans.unmappable.BaseCollectionElementPropertyMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.RoofTypeMapper;
+
+@Mapper(uses = RoofTypeMapper.class, unmappedTargetPolicy = ReportingPolicy.IGNORE)
+public abstract class UnmappableIgnoreCollectionElementPropertyMapper extends BaseCollectionElementPropertyMapper {
+}
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/ignore/UnmappableIgnoreDeepListMapper.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/ignore/UnmappableIgnoreDeepListMapper.java
new file mode 100644
index 000000000..746777bc2
--- /dev/null
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/ignore/UnmappableIgnoreDeepListMapper.java
@@ -0,0 +1,28 @@
+/**
+ *  Copyright 2012-2017 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.test.nestedbeans.unmappable.ignore;
+
+import org.mapstruct.Mapper;
+import org.mapstruct.ReportingPolicy;
+import org.mapstruct.ap.test.nestedbeans.unmappable.BaseDeepListMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.RoofTypeMapper;
+
+@Mapper(uses = RoofTypeMapper.class, unmappedTargetPolicy = ReportingPolicy.IGNORE)
+public abstract class UnmappableIgnoreDeepListMapper extends BaseDeepListMapper {
+}
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/ignore/UnmappableIgnoreDeepMapKeyMapper.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/ignore/UnmappableIgnoreDeepMapKeyMapper.java
new file mode 100644
index 000000000..8dc34f372
--- /dev/null
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/ignore/UnmappableIgnoreDeepMapKeyMapper.java
@@ -0,0 +1,28 @@
+/**
+ *  Copyright 2012-2017 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.test.nestedbeans.unmappable.ignore;
+
+import org.mapstruct.Mapper;
+import org.mapstruct.ReportingPolicy;
+import org.mapstruct.ap.test.nestedbeans.unmappable.BaseDeepMapKeyMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.RoofTypeMapper;
+
+@Mapper(uses = RoofTypeMapper.class, unmappedTargetPolicy = ReportingPolicy.IGNORE)
+public abstract class UnmappableIgnoreDeepMapKeyMapper extends BaseDeepMapKeyMapper {
+}
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/ignore/UnmappableIgnoreDeepMapValueMapper.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/ignore/UnmappableIgnoreDeepMapValueMapper.java
new file mode 100644
index 000000000..5255246fe
--- /dev/null
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/ignore/UnmappableIgnoreDeepMapValueMapper.java
@@ -0,0 +1,28 @@
+/**
+ *  Copyright 2012-2017 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.test.nestedbeans.unmappable.ignore;
+
+import org.mapstruct.Mapper;
+import org.mapstruct.ReportingPolicy;
+import org.mapstruct.ap.test.nestedbeans.unmappable.BaseDeepMapValueMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.RoofTypeMapper;
+
+@Mapper(uses = RoofTypeMapper.class, unmappedTargetPolicy = ReportingPolicy.IGNORE)
+public abstract class UnmappableIgnoreDeepMapValueMapper extends BaseDeepMapValueMapper {
+}
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/ignore/UnmappableIgnoreDeepNestingMapper.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/ignore/UnmappableIgnoreDeepNestingMapper.java
new file mode 100644
index 000000000..4ba701427
--- /dev/null
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/ignore/UnmappableIgnoreDeepNestingMapper.java
@@ -0,0 +1,28 @@
+/**
+ *  Copyright 2012-2017 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.test.nestedbeans.unmappable.ignore;
+
+import org.mapstruct.Mapper;
+import org.mapstruct.ReportingPolicy;
+import org.mapstruct.ap.test.nestedbeans.unmappable.BaseDeepNestingMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.RoofTypeMapper;
+
+@Mapper(uses = RoofTypeMapper.class, unmappedTargetPolicy = ReportingPolicy.IGNORE)
+public abstract class UnmappableIgnoreDeepNestingMapper extends BaseDeepNestingMapper {
+}
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/ignore/UnmappableIgnoreValuePropertyMapper.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/ignore/UnmappableIgnoreValuePropertyMapper.java
new file mode 100644
index 000000000..000c0a271
--- /dev/null
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/ignore/UnmappableIgnoreValuePropertyMapper.java
@@ -0,0 +1,28 @@
+/**
+ *  Copyright 2012-2017 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.test.nestedbeans.unmappable.ignore;
+
+import org.mapstruct.Mapper;
+import org.mapstruct.ReportingPolicy;
+import org.mapstruct.ap.test.nestedbeans.unmappable.BaseValuePropertyMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.RoofTypeMapper;
+
+@Mapper(uses = RoofTypeMapper.class, unmappedTargetPolicy = ReportingPolicy.IGNORE)
+public abstract class UnmappableIgnoreValuePropertyMapper extends BaseValuePropertyMapper {
+}
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/warn/UnmappableWarnCollectionElementPropertyMapper.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/warn/UnmappableWarnCollectionElementPropertyMapper.java
new file mode 100644
index 000000000..69ad7272f
--- /dev/null
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/warn/UnmappableWarnCollectionElementPropertyMapper.java
@@ -0,0 +1,27 @@
+/**
+ *  Copyright 2012-2017 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.test.nestedbeans.unmappable.warn;
+
+import org.mapstruct.Mapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.BaseCollectionElementPropertyMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.RoofTypeMapper;
+
+@Mapper(uses = RoofTypeMapper.class)
+public abstract class UnmappableWarnCollectionElementPropertyMapper extends BaseCollectionElementPropertyMapper {
+}
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/warn/UnmappableWarnDeepListMapper.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/warn/UnmappableWarnDeepListMapper.java
new file mode 100644
index 000000000..429aee3b3
--- /dev/null
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/warn/UnmappableWarnDeepListMapper.java
@@ -0,0 +1,27 @@
+/**
+ *  Copyright 2012-2017 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.test.nestedbeans.unmappable.warn;
+
+import org.mapstruct.Mapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.BaseDeepListMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.RoofTypeMapper;
+
+@Mapper(uses = RoofTypeMapper.class)
+public abstract class UnmappableWarnDeepListMapper extends BaseDeepListMapper {
+}
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/warn/UnmappableWarnDeepMapKeyMapper.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/warn/UnmappableWarnDeepMapKeyMapper.java
new file mode 100644
index 000000000..b98f994d6
--- /dev/null
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/warn/UnmappableWarnDeepMapKeyMapper.java
@@ -0,0 +1,27 @@
+/**
+ *  Copyright 2012-2017 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.test.nestedbeans.unmappable.warn;
+
+import org.mapstruct.Mapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.BaseDeepMapKeyMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.RoofTypeMapper;
+
+@Mapper(uses = RoofTypeMapper.class)
+public abstract class UnmappableWarnDeepMapKeyMapper extends BaseDeepMapKeyMapper {
+}
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/warn/UnmappableWarnDeepMapValueMapper.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/warn/UnmappableWarnDeepMapValueMapper.java
new file mode 100644
index 000000000..f594336ef
--- /dev/null
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/warn/UnmappableWarnDeepMapValueMapper.java
@@ -0,0 +1,27 @@
+/**
+ *  Copyright 2012-2017 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.test.nestedbeans.unmappable.warn;
+
+import org.mapstruct.Mapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.BaseDeepMapValueMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.RoofTypeMapper;
+
+@Mapper(uses = RoofTypeMapper.class)
+public abstract class UnmappableWarnDeepMapValueMapper extends BaseDeepMapValueMapper {
+}
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/warn/UnmappableWarnDeepNestingMapper.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/warn/UnmappableWarnDeepNestingMapper.java
new file mode 100644
index 000000000..cc71221f0
--- /dev/null
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/warn/UnmappableWarnDeepNestingMapper.java
@@ -0,0 +1,27 @@
+/**
+ *  Copyright 2012-2017 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.test.nestedbeans.unmappable.warn;
+
+import org.mapstruct.Mapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.BaseDeepNestingMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.RoofTypeMapper;
+
+@Mapper(uses = RoofTypeMapper.class)
+public abstract class UnmappableWarnDeepNestingMapper extends BaseDeepNestingMapper {
+}
diff --git a/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/warn/UnmappableWarnValuePropertyMapper.java b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/warn/UnmappableWarnValuePropertyMapper.java
new file mode 100644
index 000000000..42a79040a
--- /dev/null
+++ b/processor/src/test/java/org/mapstruct/ap/test/nestedbeans/unmappable/warn/UnmappableWarnValuePropertyMapper.java
@@ -0,0 +1,27 @@
+/**
+ *  Copyright 2012-2017 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.test.nestedbeans.unmappable.warn;
+
+import org.mapstruct.Mapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.BaseValuePropertyMapper;
+import org.mapstruct.ap.test.nestedbeans.unmappable.RoofTypeMapper;
+
+@Mapper(uses = RoofTypeMapper.class)
+public abstract class UnmappableWarnValuePropertyMapper extends BaseValuePropertyMapper {
+}
diff --git a/processor/src/test/java/org/mapstruct/ap/test/updatemethods/ErroneousCompanyMapper1.java b/processor/src/test/java/org/mapstruct/ap/test/updatemethods/CompanyMapper1.java
similarity index 91%
rename from processor/src/test/java/org/mapstruct/ap/test/updatemethods/ErroneousCompanyMapper1.java
rename to processor/src/test/java/org/mapstruct/ap/test/updatemethods/CompanyMapper1.java
index eb36aa32a..2c2b6cae6 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/updatemethods/ErroneousCompanyMapper1.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/updatemethods/CompanyMapper1.java
@@ -29,9 +29,9 @@ import org.mapstruct.factory.Mappers;
  * @author Sjaak Derksen
  */
 @Mapper( uses = DepartmentEntityFactory.class )
-public interface ErroneousCompanyMapper1 {
+public interface CompanyMapper1 {
 
-    ErroneousCompanyMapper1 INSTANCE = Mappers.getMapper( ErroneousCompanyMapper1.class );
+    CompanyMapper1 INSTANCE = Mappers.getMapper( CompanyMapper1.class );
 
     void toCompanyEntity(UnmappableCompanyDto dto, @MappingTarget CompanyEntity entity);
 
diff --git a/processor/src/test/java/org/mapstruct/ap/test/updatemethods/UpdateMethodsTest.java b/processor/src/test/java/org/mapstruct/ap/test/updatemethods/UpdateMethodsTest.java
index ebcc3948d..fb3c4a75c 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/updatemethods/UpdateMethodsTest.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/updatemethods/UpdateMethodsTest.java
@@ -190,21 +190,23 @@ public class UpdateMethodsTest {
 
     @Test
     @WithClasses( {
-        ErroneousCompanyMapper1.class,
+        CompanyMapper1.class,
         DepartmentInBetween.class,
         UnmappableCompanyDto.class,
         UnmappableDepartmentDto.class
 
     } )
     @ExpectedCompilationOutcome(
-        value = CompilationResult.FAILED,
+        value = CompilationResult.SUCCEEDED,
         diagnostics = {
-            @Diagnostic(type = ErroneousCompanyMapper1.class,
-                kind = javax.tools.Diagnostic.Kind.ERROR,
+            @Diagnostic(type = CompanyMapper1.class,
+                kind = javax.tools.Diagnostic.Kind.WARNING,
                 line = 36,
-                messageRegExp = "Can't map property \".*UnmappableDepartmentDto department\" to \".*DepartmentEntity " +
-                    "department.")
+                messageRegExp = "Unmapped target property: \"employees\"\\. Mapping from property \"" +
+                    ".*UnmappableDepartmentDto department\" to \".*DepartmentEntity department.")
         }
     )
-    public void testShouldFailOnTwoNestedUpdateMethods() { }
+    public void testShouldNotUseTwoNestedUpdateMethods() {
+        generatedSource.addComparisonToFixtureFor( CompanyMapper1.class );
+    }
 }
diff --git a/processor/src/test/resources/fixtures/org/mapstruct/ap/test/accessibility/referenced/AbstractSourceTargetMapperPrivateImpl.java b/processor/src/test/resources/fixtures/org/mapstruct/ap/test/accessibility/referenced/AbstractSourceTargetMapperPrivateImpl.java
new file mode 100644
index 000000000..dbcb1474d
--- /dev/null
+++ b/processor/src/test/resources/fixtures/org/mapstruct/ap/test/accessibility/referenced/AbstractSourceTargetMapperPrivateImpl.java
@@ -0,0 +1,52 @@
+/**
+ *  Copyright 2012-2017 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.test.accessibility.referenced;
+
+import javax.annotation.Generated;
+
+@Generated(
+    value = "org.mapstruct.ap.MappingProcessor",
+    date = "2017-03-13T22:39:43+0100",
+    comments = "version: , compiler: javac, environment: Java 1.8.0_121 (Oracle Corporation)"
+)
+public class AbstractSourceTargetMapperPrivateImpl extends AbstractSourceTargetMapperPrivate {
+
+    @Override
+    public Target toTarget(Source source) {
+        if ( source == null ) {
+            return null;
+        }
+
+        Target target = new Target();
+
+        target.setReferencedTarget( referencedSourceToReferencedTarget( source.getReferencedSource() ) );
+
+        return target;
+    }
+
+    protected ReferencedTarget referencedSourceToReferencedTarget(ReferencedSource referencedSource) {
+        if ( referencedSource == null ) {
+            return null;
+        }
+
+        ReferencedTarget referencedTarget = new ReferencedTarget();
+
+        return referencedTarget;
+    }
+}
diff --git a/processor/src/test/resources/fixtures/org/mapstruct/ap/test/accessibility/referenced/SourceTargetMapperDefaultOtherImpl.java b/processor/src/test/resources/fixtures/org/mapstruct/ap/test/accessibility/referenced/SourceTargetMapperDefaultOtherImpl.java
new file mode 100644
index 000000000..366bbc3c1
--- /dev/null
+++ b/processor/src/test/resources/fixtures/org/mapstruct/ap/test/accessibility/referenced/SourceTargetMapperDefaultOtherImpl.java
@@ -0,0 +1,52 @@
+/**
+ *  Copyright 2012-2017 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.test.accessibility.referenced;
+
+import javax.annotation.Generated;
+
+@Generated(
+    value = "org.mapstruct.ap.MappingProcessor",
+    date = "2017-03-13T22:39:39+0100",
+    comments = "version: , compiler: javac, environment: Java 1.8.0_121 (Oracle Corporation)"
+)
+public class SourceTargetMapperDefaultOtherImpl implements SourceTargetMapperDefaultOther {
+
+    @Override
+    public Target toTarget(Source source) {
+        if ( source == null ) {
+            return null;
+        }
+
+        Target target = new Target();
+
+        target.setReferencedTarget( referencedSourceToReferencedTarget( source.getReferencedSource() ) );
+
+        return target;
+    }
+
+    protected ReferencedTarget referencedSourceToReferencedTarget(ReferencedSource referencedSource) {
+        if ( referencedSource == null ) {
+            return null;
+        }
+
+        ReferencedTarget referencedTarget = new ReferencedTarget();
+
+        return referencedTarget;
+    }
+}
diff --git a/processor/src/test/resources/fixtures/org/mapstruct/ap/test/accessibility/referenced/SourceTargetMapperPrivateImpl.java b/processor/src/test/resources/fixtures/org/mapstruct/ap/test/accessibility/referenced/SourceTargetMapperPrivateImpl.java
new file mode 100644
index 000000000..a19adfdac
--- /dev/null
+++ b/processor/src/test/resources/fixtures/org/mapstruct/ap/test/accessibility/referenced/SourceTargetMapperPrivateImpl.java
@@ -0,0 +1,52 @@
+/**
+ *  Copyright 2012-2017 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.test.accessibility.referenced;
+
+import javax.annotation.Generated;
+
+@Generated(
+    value = "org.mapstruct.ap.MappingProcessor",
+    date = "2017-03-13T22:39:36+0100",
+    comments = "version: , compiler: javac, environment: Java 1.8.0_121 (Oracle Corporation)"
+)
+public class SourceTargetMapperPrivateImpl implements SourceTargetMapperPrivate {
+
+    @Override
+    public Target toTarget(Source source) {
+        if ( source == null ) {
+            return null;
+        }
+
+        Target target = new Target();
+
+        target.setReferencedTarget( referencedSourceToReferencedTarget( source.getReferencedSource() ) );
+
+        return target;
+    }
+
+    protected ReferencedTarget referencedSourceToReferencedTarget(ReferencedSource referencedSource) {
+        if ( referencedSource == null ) {
+            return null;
+        }
+
+        ReferencedTarget referencedTarget = new ReferencedTarget();
+
+        return referencedTarget;
+    }
+}
diff --git a/processor/src/test/resources/fixtures/org/mapstruct/ap/test/updatemethods/CompanyMapper1Impl.java b/processor/src/test/resources/fixtures/org/mapstruct/ap/test/updatemethods/CompanyMapper1Impl.java
new file mode 100644
index 000000000..d1f212f5d
--- /dev/null
+++ b/processor/src/test/resources/fixtures/org/mapstruct/ap/test/updatemethods/CompanyMapper1Impl.java
@@ -0,0 +1,133 @@
+/**
+ *  Copyright 2012-2017 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.test.updatemethods;
+
+import java.util.HashMap;
+import java.util.Map;
+import javax.annotation.Generated;
+
+@Generated(
+    value = "org.mapstruct.ap.MappingProcessor",
+    date = "2017-03-13T22:32:15+0100",
+    comments = "version: , compiler: javac, environment: Java 1.8.0_121 (Oracle Corporation)"
+)
+public class CompanyMapper1Impl implements CompanyMapper1 {
+
+    private final DepartmentEntityFactory departmentEntityFactory = new DepartmentEntityFactory();
+
+    @Override
+    public void toCompanyEntity(UnmappableCompanyDto dto, CompanyEntity entity) {
+        if ( dto == null ) {
+            return;
+        }
+
+        entity.setName( dto.getName() );
+        if ( dto.getDepartment() != null ) {
+            if ( entity.getDepartment() == null ) {
+                entity.setDepartment( departmentEntityFactory.createDepartmentEntity() );
+            }
+            unmappableDepartmentDtoToDepartmentEntity( dto.getDepartment(), entity.getDepartment() );
+        }
+        else {
+            entity.setDepartment( null );
+        }
+    }
+
+    @Override
+    public void toInBetween(UnmappableDepartmentDto dto, DepartmentInBetween entity) {
+        if ( dto == null ) {
+            return;
+        }
+
+        entity.setName( dto.getName() );
+    }
+
+    @Override
+    public void toDepartmentEntity(DepartmentInBetween dto, DepartmentEntity entity) {
+        if ( dto == null ) {
+            return;
+        }
+
+        entity.setName( dto.getName() );
+    }
+
+    protected SecretaryEntity secretaryDtoToSecretaryEntity(SecretaryDto secretaryDto) {
+        if ( secretaryDto == null ) {
+            return null;
+        }
+
+        SecretaryEntity secretaryEntity = new SecretaryEntity();
+
+        secretaryEntity.setName( secretaryDto.getName() );
+
+        return secretaryEntity;
+    }
+
+    protected EmployeeEntity employeeDtoToEmployeeEntity(EmployeeDto employeeDto) {
+        if ( employeeDto == null ) {
+            return null;
+        }
+
+        EmployeeEntity employeeEntity = new EmployeeEntity();
+
+        employeeEntity.setName( employeeDto.getName() );
+
+        return employeeEntity;
+    }
+
+    protected Map<SecretaryEntity, EmployeeEntity> secretaryDtoEmployeeDtoMapToSecretaryEntityEmployeeEntityMap(Map<SecretaryDto, EmployeeDto> map) {
+        if ( map == null ) {
+            return null;
+        }
+
+        Map<SecretaryEntity, EmployeeEntity> map1 = new HashMap<SecretaryEntity, EmployeeEntity>();
+
+        for ( java.util.Map.Entry<SecretaryDto, EmployeeDto> entry : map.entrySet() ) {
+            SecretaryEntity key = secretaryDtoToSecretaryEntity( entry.getKey() );
+            EmployeeEntity value = employeeDtoToEmployeeEntity( entry.getValue() );
+            map1.put( key, value );
+        }
+
+        return map1;
+    }
+
+    protected void unmappableDepartmentDtoToDepartmentEntity(UnmappableDepartmentDto unmappableDepartmentDto, DepartmentEntity mappingTarget) {
+        if ( unmappableDepartmentDto == null ) {
+            return;
+        }
+
+        mappingTarget.setName( unmappableDepartmentDto.getName() );
+        if ( mappingTarget.getSecretaryToEmployee() != null ) {
+            Map<SecretaryEntity, EmployeeEntity> map = secretaryDtoEmployeeDtoMapToSecretaryEntityEmployeeEntityMap( unmappableDepartmentDto.getSecretaryToEmployee() );
+            if ( map != null ) {
+                mappingTarget.getSecretaryToEmployee().clear();
+                mappingTarget.getSecretaryToEmployee().putAll( map );
+            }
+            else {
+                mappingTarget.setSecretaryToEmployee( null );
+            }
+        }
+        else {
+            Map<SecretaryEntity, EmployeeEntity> map = secretaryDtoEmployeeDtoMapToSecretaryEntityEmployeeEntityMap( unmappableDepartmentDto.getSecretaryToEmployee() );
+            if ( map != null ) {
+                mappingTarget.setSecretaryToEmployee( map );
+            }
+        }
+    }
+}