--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/tools/jlink/plugins/StripDebugPluginTest.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,162 @@
+/*
+ * Copyright (c) 2015, 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
+ * @summary Test StripDebugPlugin
+ * @author Jean-Francois Denise
+ * @library ../../lib
+ * @build tests.*
+ * @modules java.base/jdk.internal.jimage
+ *          jdk.jlink/jdk.tools.jlink.internal
+ *          jdk.jlink/jdk.tools.jlink.internal.plugins
+ *          jdk.jlink/jdk.tools.jlink.plugin
+ *          jdk.jlink/jdk.tools.jimage
+ *          jdk.jlink/jdk.tools.jmod
+ *          jdk.jdeps/com.sun.tools.classfile
+ *          jdk.compiler
+ * @run main StripDebugPluginTest
+ */
+
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Iterator;
+import java.util.List;
+import java.util.stream.Stream;
+
+import com.sun.tools.classfile.Attribute;
+import com.sun.tools.classfile.ClassFile;
+import com.sun.tools.classfile.Code_attribute;
+import com.sun.tools.classfile.ConstantPoolException;
+import com.sun.tools.classfile.Method;
+import java.util.HashMap;
+import java.util.Map;
+import jdk.tools.jlink.internal.ResourcePoolManager;
+import jdk.tools.jlink.internal.plugins.StripDebugPlugin;
+import jdk.tools.jlink.plugin.ResourcePoolEntry;
+import jdk.tools.jlink.plugin.ResourcePool;
+import jdk.tools.jlink.plugin.Plugin;
+import tests.Helper;
+
+public class StripDebugPluginTest {
+    public static void main(String[] args) throws Exception {
+        new StripDebugPluginTest().test();
+    }
+
+    public void test() throws Exception {
+        // JPRT not yet ready for jmods
+        Helper helper = Helper.newHelper();
+        if (helper == null) {
+            System.err.println("Test not run, NO jmods directory");
+            return;
+        }
+
+        List<String> classes = Arrays.asList("toto.Main", "toto.com.foo.bar.X");
+        Path moduleFile = helper.generateModuleCompiledClasses(
+                helper.getJmodSrcDir(), helper.getJmodClassesDir(), "leaf1", classes);
+        Path moduleInfo = moduleFile.resolve("module-info.class");
+
+        // Classes have been compiled in debug.
+        List<Path> covered = new ArrayList<>();
+        byte[] infoContent = Files.readAllBytes(moduleInfo);
+        try (Stream<Path> stream = Files.walk(moduleFile)) {
+            for (Iterator<Path> iterator = stream.iterator(); iterator.hasNext(); ) {
+                Path p = iterator.next();
+                if (Files.isRegularFile(p) && p.toString().endsWith(".class")) {
+                    byte[] content = Files.readAllBytes(p);
+                    String path = "/" + helper.getJmodClassesDir().relativize(p).toString();
+                    String moduleInfoPath = path + "/module-info.class";
+                    check(path, content, moduleInfoPath, infoContent);
+                    covered.add(p);
+                }
+            }
+        }
+        if (covered.isEmpty()) {
+            throw new AssertionError("No class to compress");
+        } else {
+            System.err.println("removed debug attributes from "
+                    + covered.size() + " classes");
+        }
+    }
+
+    private void check(String path, byte[] content, String infoPath, byte[] moduleInfo) throws Exception {
+        path = path.replace('\\', '/');
+        StripDebugPlugin debug = new StripDebugPlugin();
+        debug.configure(new HashMap<>());
+        ResourcePoolEntry result1 = stripDebug(debug, ResourcePoolEntry.create(path,content), path, infoPath, moduleInfo);
+
+        if (!path.endsWith("module-info.class")) {
+            if (result1.contentLength() >= content.length) {
+                throw new AssertionError("Class size not reduced, debug info not "
+                        + "removed for " + path);
+            }
+            checkDebugAttributes(result1.contentBytes());
+        }
+
+        ResourcePoolEntry result2 = stripDebug(debug, result1, path, infoPath, moduleInfo);
+        if (result1.contentLength() != result2.contentLength()) {
+            throw new AssertionError("removing debug info twice reduces class size of "
+                    + path);
+        }
+        checkDebugAttributes(result1.contentBytes());
+    }
+
+    private ResourcePoolEntry stripDebug(Plugin debug, ResourcePoolEntry classResource,
+            String path, String infoPath, byte[] moduleInfo) throws Exception {
+        ResourcePoolManager resources = new ResourcePoolManager();
+        resources.add(classResource);
+        if (!path.endsWith("module-info.class")) {
+            ResourcePoolEntry res2 = ResourcePoolEntry.create(infoPath, moduleInfo);
+            resources.add(res2);
+        }
+        ResourcePoolManager results = new ResourcePoolManager();
+        ResourcePool resPool = debug.transform(resources.resourcePool(),
+                results.resourcePoolBuilder());
+        System.out.println(classResource.path());
+
+        return resPool.findEntry(classResource.path()).get();
+    }
+
+    private void checkDebugAttributes(byte[] strippedClassFile) throws IOException, ConstantPoolException {
+        ClassFile classFile = ClassFile.read(new ByteArrayInputStream(strippedClassFile));
+        String[] debugAttributes = new String[]{
+                Attribute.LineNumberTable,
+                Attribute.LocalVariableTable,
+                Attribute.LocalVariableTypeTable
+        };
+        for (Method method : classFile.methods) {
+            String methodName = method.getName(classFile.constant_pool);
+            Code_attribute code = (Code_attribute) method.attributes.get(Attribute.Code);
+            for (String attr : debugAttributes) {
+                if (code.attributes.get(attr) != null) {
+                    throw new AssertionError("Debug attribute was not removed: " + attr +
+                            " from method " + classFile.getName() + "#" + methodName);
+                }
+            }
+        }
+    }
+}