#1155 Field accessors should be considered when resolving nested target properties

processor/src/main/java/org/mapstruct/ap/internal/model/source/TargetReference.java

@@ -149,8 +149,9 @@ public class TargetReference {
                     break;
                 }
 
-                if ( (i == entryNames.length - 1) || (Executables.isSetterMethod( targetWriteAccessor ) ) ) {
+                if ( ( i == entryNames.length - 1 ) || ( Executables.isSetterMethod( targetWriteAccessor )
-                    // only intermediate nested properties when they are a true setter
+                    || Executables.isFieldAccessor( targetWriteAccessor ) ) ) {
+                    // only intermediate nested properties when they are a true setter or field accessor
                     // the last may be other readAccessor (setter / getter / adder).
 
                     if ( Executables.isGetterMethod( targetWriteAccessor ) ||

processor/src/test/java/org/mapstruct/ap/test/bugs/_1155/Entity.java

@@ -0,0 +1,43 @@
+/**
+ *  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.bugs._1155;
+
+/**
+ * @author Filip Hrisafov
+ */
+class Entity {
+
+    static class Client {
+
+        //CHECKSTYLE:OFF
+        public long id;
+        //CHECKSTYLE:ON
+    }
+
+    static class Dto {
+
+        //CHECKSTYLE:OFF
+        public long clientId;
+        //CHECKSTYLE:ON
+    }
+
+    //CHECKSTYLE:OFF
+    public Client client;
+    //CHECKSTYLE:ON
+}

processor/src/test/java/org/mapstruct/ap/test/bugs/_1155/Issue1155Mapper.java

@@ -0,0 +1,35 @@
+/**
+ *  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.bugs._1155;
+
+import org.mapstruct.Mapper;
+import org.mapstruct.Mapping;
+import org.mapstruct.factory.Mappers;
+
+/**
+ * @author Filip Hrisafov
+ */
+@Mapper
+public interface Issue1155Mapper {
+
+    Issue1155Mapper INSTANCE = Mappers.getMapper( Issue1155Mapper.class );
+
+    @Mapping(source = "clientId", target = "client.id")
+    Entity toEntity(Entity.Dto dto);
+}

processor/src/test/java/org/mapstruct/ap/test/bugs/_1155/Issue1155Test.java

@@ -0,0 +1,50 @@
+/**
+ *  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.bugs._1155;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mapstruct.ap.testutil.IssueKey;
+import org.mapstruct.ap.testutil.WithClasses;
+import org.mapstruct.ap.testutil.runner.AnnotationProcessorTestRunner;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * @author Filip Hrisafov
+ */
+@WithClasses({
+    Entity.class,
+    Issue1155Mapper.class
+})
+@RunWith(AnnotationProcessorTestRunner.class)
+@IssueKey("1155")
+public class Issue1155Test {
+
+    @Test
+    public void shouldCompile() throws Exception {
+
+        Entity.Dto dto = new Entity.Dto();
+        dto.clientId = 10;
+        Entity entity = Issue1155Mapper.INSTANCE.toEntity( dto );
+
+        assertThat( entity.client ).isNotNull();
+        assertThat( entity.client.id ).isEqualTo( 10 );
+    }
+}