--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/compiler/testlibrary/rtm/MemoryConflictProvoker.java	Mon Apr 14 19:29:34 2014 +0400
@@ -0,0 +1,100 @@
+/*
+ * Copyright (c) 2014, 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.
+ *
+ */
+
+package rtm;
+
+import java.util.concurrent.BrokenBarrierException;
+import java.util.concurrent.CyclicBarrier;
+
+/**
+ * To force transactional execution abort due to memory conflict
+ * one thread should access memory region from transactional region
+ * while another thread should modify the same memory region.
+ * Since this scenario is based on the race condition between threads
+ * you should not expect some particular amount of aborts.
+ */
+class MemoryConflictProvoker extends AbortProvoker {
+    // Following field have to be static in order to avoid escape analysis.
+    @SuppressWarnings("UnsuedDeclaration")
+    private static int field = 0;
+    private static final int INNER_ITERATIONS = 10000;
+    private final CyclicBarrier barrier;
+    /**
+     * This thread will access and modify memory region
+     * from outside of the transaction.
+     */
+    private final Runnable conflictingThread;
+
+    public MemoryConflictProvoker() {
+        this(new Object());
+    }
+
+    public MemoryConflictProvoker(Object monitor) {
+        super(monitor);
+        barrier = new CyclicBarrier(2);
+        conflictingThread = () -> {
+            try {
+                barrier.await();
+            } catch (Exception e) {
+                throw new RuntimeException(e);
+            }
+            for (int i = 0; i < MemoryConflictProvoker.INNER_ITERATIONS; i++) {
+                MemoryConflictProvoker.field++;
+            }
+        };
+    }
+
+    /**
+     * Accesses and modifies memory region from within the transaction.
+     */
+    public void transactionalRegion() {
+        try {
+            barrier.await();
+        } catch (InterruptedException | BrokenBarrierException e) {
+            throw new RuntimeException(e);
+        }
+        for (int i = 0; i < MemoryConflictProvoker.INNER_ITERATIONS; i++) {
+            synchronized(monitor) {
+                MemoryConflictProvoker.field--;
+            }
+        }
+    }
+
+    @Override
+    public void forceAbort() {
+        try {
+            Thread t = new Thread(conflictingThread);
+            t.start();
+            transactionalRegion();
+            t.join();
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    @Override
+    public String getMethodWithLockName() {
+        return this.getClass().getName() + "::transactionalRegion";
+    }
+}