--- a/java.source/src/org/netbeans/api/java/source/TranslateIdentifier.java	Thu Jun 21 09:30:48 2012 +0200
+++ a/java.source/src/org/netbeans/api/java/source/TranslateIdentifier.java	Mon Jun 25 19:13:43 2012 +0200
@@ -398,6 +398,8 @@ 
     }
 
     public Tree visitMethod(MethodTree node, Boolean p) {
+        if (unit != null && info.getTreeUtilities().isSynthetic(/*should not be used:*/unit, node)) return node;
+
         BlockTree body = (BlockTree) translateTree(node.getBody());
         Tree defaultValue = translateTree(node.getDefaultValue());
         List<? extends VariableTree> parameters = translateTree(node.getParameters());
--- a/java.source/test/unit/src/org/netbeans/api/java/source/gen/FormRegressionTest.java	Thu Jun 21 09:30:48 2012 +0200
+++ a/java.source/test/unit/src/org/netbeans/api/java/source/gen/FormRegressionTest.java	Mon Jun 25 19:13:43 2012 +0200
@@ -217,6 +217,43 @@ 
         System.err.println(res);
         assertEquals(golden, res);
     }
+    
+    public void testDontImportSyntheticConstructors() throws Exception {
+        testFile = new File(getWorkDir(), "Test.java");
+        String originalCode =
+            "package test;\n" +
+            "public class Test {\n" +
+            "    private void initComponents(java.util.ArrayList orig) {\n" +
+            "        new java.util.ArrayList(orig) {};\n" +
+            "    }\n" +
+            "}\n";
+        TestUtilities.copyStringToFile(testFile, originalCode);
+        String golden =
+            "package test;\n\n" +
+            "import java.util.ArrayList;\n\n" +
+            "public class Test {\n" +
+            "    private void initComponents(ArrayList orig) {\n" +
+            "        new ArrayList(orig) {};\n" +
+            "    }\n" +
+            "}\n";
+
+        JavaSource src = getJavaSource(testFile);
+        Task<WorkingCopy> task = new Task<WorkingCopy>() {
+
+            public void run(WorkingCopy workingCopy) throws IOException {
+                workingCopy.toPhase(Phase.RESOLVED);
+                CompilationUnitTree cut = workingCopy.getCompilationUnit();
+                GeneratorUtilities gu = GeneratorUtilities.get(workingCopy);
+                
+                workingCopy.rewrite(cut, gu.importFQNs(cut));
+            }
+            
+        };
+        src.runModificationTask(task).commit();
+        String res = TestUtilities.copyFileToString(testFile);
+        System.err.println(res);
+        assertEquals(golden, res);
+    }
 
     String getGoldenPckg() {
         return "";