--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/compilercontrol/share/AbstractTestBase.java	Tue Oct 20 21:09:57 2015 +0300
@@ -0,0 +1,60 @@
+/*
+ * 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.
+ */
+
+package compiler.compilercontrol.share;
+
+import compiler.compilercontrol.share.method.MethodDescriptor;
+import compiler.compilercontrol.share.method.MethodGenerator;
+import jdk.test.lib.Pair;
+import pool.PoolHelper;
+
+import java.lang.reflect.Executable;
+import java.util.List;
+import java.util.concurrent.Callable;
+
+public abstract class AbstractTestBase {
+    protected static final MethodGenerator METHOD_GEN = new MethodGenerator();
+    protected static final int ATTEMPTS = 25;
+    protected static final List<Pair<Executable, Callable<?>>> METHODS
+            = new PoolHelper().getAllMethods(PoolHelper.METHOD_FILTER);
+
+    public abstract void test();
+
+    /**
+     * Generate random valid method descriptor
+     *
+     * @param exec method to make descriptor for
+     * @return a valid {@link MethodDescriptor#isValid()} descriptor instance
+     */
+    public static MethodDescriptor getValidMethodDescriptor(Executable exec) {
+        MethodDescriptor md = METHOD_GEN.generateRandomDescriptor(exec);
+        for (int i = 0; !md.isValid() && i < ATTEMPTS; i++) {
+            md = METHOD_GEN.generateRandomDescriptor(exec);
+        }
+        if (!md.isValid()) {
+            System.out.println("WARN: Using predefined pattern");
+            md = MethodGenerator.commandDescriptor(exec);
+        }
+        return md;
+    }
+}