diff -r 000000000000 -r 959103a6100f test/tools/javac/api/TestGetTree.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/tools/javac/api/TestGetTree.java	Wed Apr 27 01:34:52 2016 +0800
@@ -0,0 +1,54 @@
+/*
+ * Copyright (c) 2005, 2006, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug     6344177 6392177
+ * @summary Can't get tree from a top level class
+ * @author  Peter von der Ah\u00e9
+ * @compile TestGetTree.java
+ * @compile -processor TestGetTree -proc:only TestGetTree.java
+ */
+
+import java.util.Set;
+import javax.annotation.processing.*;
+import javax.lang.model.element.*;
+import javax.lang.model.util.*;
+import static javax.lang.model.util.ElementFilter.*;
+
+import com.sun.source.tree.*;
+import com.sun.source.util.Trees;
+
+@SupportedAnnotationTypes("*")
+public class TestGetTree extends AbstractProcessor {
+    public boolean process(Set<? extends TypeElement> annotations,
+                           RoundEnvironment roundEnvironment)
+    {
+        final Trees trees = Trees.instance(processingEnv);
+        for (TypeElement e : typesIn(roundEnvironment.getRootElements())) {
+            ClassTree node = trees.getTree(e);
+            System.out.println(node.toString());
+        }
+        return true;
+    }
+}