#2505 deepclone generates enum mapping method (#2507)

processor/src/main/java/org/mapstruct/ap/internal/processor/creation/MappingResolverImpl.java

@@ -383,6 +383,10 @@ public class MappingResolverImpl implements MappingResolver {
                 return true;
             }
 
+            if ( type.isEnumType() ) {
+                return true;
+            }
+
             if ( type.isArrayType() ) {
                 return type.isJavaLangType() || type.getComponentType().isPrimitive();
             }

processor/src/test/java/org/mapstruct/ap/test/bugs/_2505/Issue2505Mapper.java

@@ -0,0 +1,51 @@
+/*
+ * Copyright MapStruct Authors.
+ *
+ * Licensed under the Apache License version 2.0, available at http://www.apache.org/licenses/LICENSE-2.0
+ */
+package org.mapstruct.ap.test.bugs._2505;
+
+import org.mapstruct.Mapper;
+import org.mapstruct.control.DeepClone;
+import org.mapstruct.factory.Mappers;
+
+/**
+ * @author Sjaak Derksen
+ */
+@Mapper( mappingControl = DeepClone.class )
+public interface Issue2505Mapper {
+
+    Issue2505Mapper INSTANCE = Mappers.getMapper( Issue2505Mapper.class );
+
+    Customer map(CustomerDTO value);
+
+    enum Status {
+        ENABLED, DISABLED,
+    }
+
+    class Customer {
+
+        private Status status;
+
+        public Status getStatus() {
+            return status;
+        }
+
+        public void setStatus(Status stat) {
+            this.status = stat;
+        }
+    }
+
+    class CustomerDTO {
+
+        private Status status;
+
+        public Status getStatus() {
+            return status;
+        }
+
+        public void setStatus(Status status) {
+            this.status = status;
+        }
+    }
+}

processor/src/test/java/org/mapstruct/ap/test/bugs/_2505/Issue2505Test.java

@@ -0,0 +1,36 @@
+/*
+ * Copyright MapStruct Authors.
+ *
+ * Licensed under the Apache License version 2.0, available at http://www.apache.org/licenses/LICENSE-2.0
+ */
+package org.mapstruct.ap.test.bugs._2505;
+
+import org.junit.jupiter.api.extension.RegisterExtension;
+import org.mapstruct.ap.testutil.IssueKey;
+import org.mapstruct.ap.testutil.ProcessorTest;
+import org.mapstruct.ap.testutil.WithClasses;
+import org.mapstruct.ap.testutil.runner.GeneratedSource;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * @author Sjaak derksen
+ */
+@IssueKey("2505")
+@WithClasses( Issue2505Mapper.class )
+class Issue2505Test {
+
+    @RegisterExtension
+    final GeneratedSource generatedSource = new GeneratedSource()
+        .addComparisonToFixtureFor( Issue2505Mapper.class );
+
+    @ProcessorTest
+    void shouldNotGenerateEnumMappingMethodForDeepClone() {
+        Issue2505Mapper.CustomerDTO source = new Issue2505Mapper.CustomerDTO();
+        source.setStatus( Issue2505Mapper.Status.DISABLED );
+
+        Issue2505Mapper.Customer target = Issue2505Mapper.INSTANCE.map( source );
+
+        assertThat( target.getStatus() ).isEqualTo( Issue2505Mapper.Status.DISABLED );
+    }
+}

processor/src/test/resources/fixtures/org/mapstruct/ap/test/bugs/_2505/Issue2505MapperImpl.java

@@ -0,0 +1,29 @@
+/*
+ * Copyright MapStruct Authors.
+ *
+ * Licensed under the Apache License version 2.0, available at http://www.apache.org/licenses/LICENSE-2.0
+ */
+package org.mapstruct.ap.test.bugs._2505;
+
+import javax.annotation.Generated;
+
+@Generated(
+    value = "org.mapstruct.ap.MappingProcessor",
+    date = "2021-07-03T14:21:53+0200",
+    comments = "version: , compiler: Eclipse JDT (Batch) 3.20.0.v20191203-2131, environment: Java 1.8.0_181 (Oracle Corporation)"
+)
+public class Issue2505MapperImpl implements Issue2505Mapper {
+
+    @Override
+    public Customer map(CustomerDTO value) {
+        if ( value == null ) {
+            return null;
+        }
+
+        Customer customer = new Customer();
+
+        customer.setStatus( value.getStatus() );
+
+        return customer;
+    }
+}