diff -r 000000000000 -r 959103a6100f test/tools/javah/compareTest/FindNativeFiles.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/tools/javah/compareTest/FindNativeFiles.java	Wed Apr 27 01:34:52 2016 +0800
@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 2009, 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.
+ */
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Enumeration;
+import java.util.jar.JarEntry;
+import java.util.jar.JarFile;
+
+import com.sun.tools.classfile.AccessFlags;
+import com.sun.tools.classfile.ClassFile;
+import com.sun.tools.classfile.ConstantPoolException;
+import com.sun.tools.classfile.Method;
+import java.util.Comparator;
+import java.util.Set;
+import java.util.TreeSet;
+
+public class FindNativeFiles {
+    public static void main(String[] args) throws IOException, ConstantPoolException {
+        new FindNativeFiles().run(args);
+    }
+
+    public void run(String[] args) throws IOException, ConstantPoolException {
+        JarFile jar = new JarFile(args[0]);
+        Set<JarEntry> entries = getNativeClasses(jar);
+        for (JarEntry e: entries) {
+            String name = e.getName();
+            String className = name.substring(0, name.length() - 6).replace("/", ".");
+            System.out.println(className);
+        }
+    }
+
+    Set<JarEntry> getNativeClasses(JarFile jar) throws IOException, ConstantPoolException {
+        Set<JarEntry> results = new TreeSet<JarEntry>(new Comparator<JarEntry>() {
+            public int compare(JarEntry o1, JarEntry o2) {
+                return o1.getName().compareTo(o2.getName());
+            }
+        });
+        Enumeration<JarEntry> e = jar.entries();
+        while (e.hasMoreElements()) {
+            JarEntry je = e.nextElement();
+            if (isNativeClass(jar, je))
+                results.add(je);
+        }
+        return results;
+    }
+
+    boolean isNativeClass(JarFile jar, JarEntry entry) throws IOException, ConstantPoolException {
+        String name = entry.getName();
+        if (name.startsWith("META-INF") || !name.endsWith(".class"))
+            return false;
+        //String className = name.substring(0, name.length() - 6).replace("/", ".");
+        //System.err.println("check " + className);
+        InputStream in = jar.getInputStream(entry);
+        ClassFile cf = ClassFile.read(in);
+        in.close();
+        for (int i = 0; i < cf.methods.length; i++) {
+            Method m = cf.methods[i];
+            if (m.access_flags.is(AccessFlags.ACC_NATIVE)) {
+                // System.err.println(className);
+                return true;
+            }
+        }
+        return false;
+    }
+}