--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/tools/jlink/plugins/PluginsNegativeTest.java	Thu Mar 17 19:04:16 2016 +0000
@@ -0,0 +1,155 @@
+/*
+ * 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 Negative test for ImagePluginStack.
+ * @author Andrei Eremeev
+ * @modules jdk.jlink/jdk.tools.jlink.internal
+ * @run main/othervm PluginsNegativeTest
+ */
+import java.lang.reflect.Layer;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import jdk.tools.jlink.internal.ImagePluginConfiguration;
+import jdk.tools.jlink.internal.PluginRepository;
+import jdk.tools.jlink.internal.ImagePluginStack;
+import jdk.tools.jlink.internal.PoolImpl;
+import jdk.tools.jlink.Jlink;
+import jdk.tools.jlink.Jlink.PluginsConfiguration;
+import jdk.tools.jlink.plugin.Plugin;
+import jdk.tools.jlink.plugin.Pool;
+import jdk.tools.jlink.plugin.TransformerPlugin;
+
+public class PluginsNegativeTest {
+
+    public static void main(String[] args) throws Exception {
+        new PluginsNegativeTest().test();
+    }
+
+    public void test() throws Exception {
+        testDuplicateBuiltInProviders();
+        testUnknownProvider();
+        PluginRepository.registerPlugin(new CustomPlugin("plugin"));
+        testEmptyInputResource();
+        testEmptyOutputResource();
+    }
+
+    private void testDuplicateBuiltInProviders() {
+        List<Plugin> javaPlugins = new ArrayList<>();
+        javaPlugins.addAll(PluginRepository.getPlugins(Layer.boot()));
+        for (Plugin javaPlugin : javaPlugins) {
+            System.out.println("Registered plugin: " + javaPlugin.getName());
+        }
+        for (Plugin javaPlugin : javaPlugins) {
+            String pluginName = javaPlugin.getName();
+            try {
+                PluginRepository.registerPlugin(new CustomPlugin(pluginName));
+                try {
+                    PluginRepository.getPlugin(pluginName, Layer.boot());
+                    throw new AssertionError("Exception is not thrown for duplicate plugin: " + pluginName);
+                } catch (Exception ignored) {
+                }
+            } finally {
+                PluginRepository.unregisterPlugin(pluginName);
+            }
+        }
+    }
+
+    private void testUnknownProvider() {
+        if (PluginRepository.getPlugin("unknown", Layer.boot()) != null) {
+            throw new AssertionError("Exception expected for unknown plugin name");
+        }
+    }
+
+    private static Plugin createPlugin(String name) {
+        return Jlink.newPlugin(name, Collections.emptyMap(), null);
+    }
+
+    private void testEmptyOutputResource() throws Exception {
+        List<Plugin> plugins = new ArrayList<>();
+        plugins.add(createPlugin("plugin"));
+        ImagePluginStack stack = ImagePluginConfiguration.parseConfiguration(new PluginsConfiguration(plugins,
+                null, null));
+        PoolImpl inResources = new PoolImpl();
+        inResources.add(Pool.newResource("/aaa/bbb/A", new byte[10]));
+        try {
+            stack.visitResources(inResources);
+            throw new AssertionError("Exception expected when output resource is empty");
+        } catch (Exception ignored) {
+        }
+    }
+
+    private void testEmptyInputResource() throws Exception {
+        List<Plugin> plugins = new ArrayList<>();
+        plugins.add(createPlugin("plugin"));
+        ImagePluginStack stack = ImagePluginConfiguration.parseConfiguration(new PluginsConfiguration(plugins,
+                null, null));
+        PoolImpl inResources = new PoolImpl();
+        PoolImpl outResources = (PoolImpl) stack.visitResources(inResources);
+        if (!outResources.isEmpty()) {
+            throw new AssertionError("Output resource is not empty");
+        }
+    }
+
+    public static class CustomPlugin implements TransformerPlugin {
+
+        private final String name;
+
+        CustomPlugin(String name) {
+            this.name = name;
+        }
+
+        @Override
+        public void visit(Pool inResources, Pool outResources) {
+            // do nothing
+        }
+
+        @Override
+        public String getName() {
+            return name;
+        }
+
+        @Override
+        public Set<PluginType> getType() {
+            Set<PluginType> set = new HashSet<>();
+            set.add(CATEGORY.TRANSFORMER);
+            return Collections.unmodifiableSet(set);
+        }
+
+        @Override
+        public String getDescription() {
+            return null;
+        }
+
+        @Override
+        public void configure(Map<String, String> config) {
+
+        }
+    }
+}