Fix issue #527

pmd-java/src/main/java/net/sourceforge/pmd/lang/java/rule/AbstractLombokAwareRule.java

@@ -12,6 +12,7 @@ import net.sourceforge.pmd.lang.ast.Node;
 import net.sourceforge.pmd.lang.java.ast.ASTAnnotation;
 import net.sourceforge.pmd.lang.java.ast.ASTClassOrInterfaceDeclaration;
 import net.sourceforge.pmd.lang.java.ast.ASTCompilationUnit;
+import net.sourceforge.pmd.lang.java.ast.ASTEnumDeclaration;
 import net.sourceforge.pmd.lang.java.ast.ASTImportDeclaration;
 import net.sourceforge.pmd.lang.java.ast.ASTName;
 
@@ -59,6 +60,12 @@ public class AbstractLombokAwareRule extends AbstractJavaRule {
         return super.visit(node, data);
     }
 
+    @Override
+    public Object visit(ASTEnumDeclaration node, Object data) {
+        classHasLombokAnnotation = hasLombokAnnotation(node);
+        return super.visit(node, data);
+    }
+
     /**
      * Returns whether there have been class level Lombok annotations found.
      * Note: this can only be queried after the class declaration node has been

pmd-java/src/test/resources/net/sourceforge/pmd/lang/java/rule/design/xml/SingularField.xml

@@ -605,4 +605,24 @@ public final class Test {
 }
         ]]></code>
     </test-code>
+
+    <test-code>
+        <description>#527 [java] Lombok getter annotation on enum is not recognized correctly</description>
+        <expected-problems>0</expected-problems>
+        <code><![CDATA[
+import lombok.Getter;
+
+@Getter
+public enum Foo {
+    BAR(1);
+
+    private final int number;
+
+    Foo(final int number) {
+        this.number = number;
+    }
+}
+        ]]></code>
+    </test-code>
+
 </test-data>