--- /dev/null	2015-10-08 07:26:35.000000000 -1000
+++ new/test/compiler/jvmci/compilerToVM/CompileCodeTestCase.java	2015-10-08 07:26:35.000000000 -1000
@@ -0,0 +1,216 @@
+/*
+ * 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.jvmci.compilerToVM;
+
+import compiler.testlibrary.CompilerUtils;
+import jdk.test.lib.Utils;
+import sun.hotspot.WhiteBox;
+import sun.hotspot.code.NMethod;
+
+import java.lang.reflect.Executable;
+import java.lang.reflect.Modifier;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * A test case for tests which require compiled code.
+ */
+public final class CompileCodeTestCase {
+    public static final Map<Class<?>, Object> RECEIVERS;
+    private static final WhiteBox WB = WhiteBox.getWhiteBox();
+    private static final int COMP_LEVEL;
+    static {
+        int[] levels = CompilerUtils.getAvailableCompilationLevels();
+        if (levels.length == 0) {
+            throw new Error("TESTBUG: no compilers available");
+        }
+        COMP_LEVEL = levels[levels.length - 1];
+    }
+    private static final Class<?>[] CLASSES = {
+            Interface.class,
+            Dummy.class,
+            DummyEx.class};
+
+    public final Executable executable;
+    public final int bci;
+    private final boolean isOsr;
+
+    public CompileCodeTestCase(Executable executable, int bci) {
+        this.executable = executable;
+        this.bci = bci;
+        isOsr = bci >= 0;
+    }
+
+    public NMethod compile() {
+        return compile(COMP_LEVEL);
+    }
+
+    public NMethod compile(int level) {
+        boolean enqueued = WB.enqueueMethodForCompilation(executable,
+                level, bci);
+        if (!enqueued) {
+            throw new Error(String.format(
+                    "%s can't be enqueued for %scompilation on level %d",
+                    executable, bci >= 0 ? "osr-" : "", level));
+        }
+        Utils.waitForCondition(() -> WB.isMethodCompiled(executable, isOsr));
+        return NMethod.get(executable, isOsr);
+    }
+
+    public static List<CompileCodeTestCase> generate(int bci) {
+        ArrayList<CompileCodeTestCase> result = new ArrayList<>();
+        for (Class<?> aClass : CLASSES) {
+            for (Executable m : aClass.getDeclaredConstructors()) {
+                result.add(new CompileCodeTestCase(m, bci));
+            }
+            Arrays.stream(aClass.getDeclaredMethods())
+                    .filter(m -> !Modifier.isAbstract(m.getModifiers()))
+                    .filter(m -> !Modifier.isNative(m.getModifiers()))
+                    .map(m -> new CompileCodeTestCase(m, bci))
+                    .forEach(result::add);
+        }
+        return result;
+    }
+
+    public NMethod toNMethod() {
+        return NMethod.get(executable, isOsr);
+    }
+
+    @Override
+    public String toString() {
+        return "CompileCodeTestCase{" +
+                "executable=" + executable +
+                ", bci=" + bci +
+                '}';
+    }
+
+    public void deoptimize() {
+        WB.deoptimizeMethod(executable, isOsr);
+    }
+
+    public NMethod deoptimizeAndCompile() {
+        deoptimize();
+        return compile();
+    }
+
+    // classes which are used as "input" data in test cases
+    private static interface Interface {
+        Interface interfaceMethod();
+        default Long defaultOverriddenMethod(Interface[] array) {
+            return array == null ? 0L : array.length;
+        }
+        default int defaultMethod(Object o) {
+            return o != null ? o.hashCode() : 0;
+        }
+    }
+
+    private static abstract class Dummy implements Interface {
+        protected Dummy() {
+        }
+
+        private static void staticMethod() {
+        }
+
+        Dummy instanceMethod(int i) {
+            return null;
+        }
+
+        abstract Object abstractMethod(double d);
+
+        @Override
+        public Long defaultOverriddenMethod(Interface[] array) {
+            return 0L;
+        }
+    }
+
+    public static class DummyEx extends Dummy {
+        @Override
+        public boolean equals(Object o) {
+            if (this == o) {
+                return true;
+            }
+            if (o == null || getClass() != o.getClass()) {
+                return false;
+            }
+            return true;
+        }
+
+        @Override
+        public int hashCode() {
+            return 0;
+        }
+
+        public DummyEx() {
+        }
+
+        protected Dummy instanceMethod(int i) {
+            if (i == 0) {
+                return this;
+            }
+            return null;
+        }
+
+        @Override
+        Object abstractMethod(double d) {
+            return this;
+        }
+
+        @Override
+        public Interface interfaceMethod() {
+            return null;
+        }
+    }
+
+    static {
+        Map<Class<?>, Object> map = new HashMap<>();;
+        map.put(CompileCodeTestCase.DummyEx.class,
+                new CompileCodeTestCase.DummyEx());
+        map.put(CompileCodeTestCase.Dummy.class,
+                new CompileCodeTestCase.Dummy() {
+                    @Override
+                    public CompileCodeTestCase.Interface interfaceMethod() {
+                        throw new AbstractMethodError();
+                    }
+
+                    @Override
+                    Object abstractMethod(double d) {
+                        throw new AbstractMethodError();
+                    }
+                });
+        map.put(CompileCodeTestCase.Interface.class,
+                new CompileCodeTestCase.Interface() {
+                    @Override
+                    public CompileCodeTestCase.Interface interfaceMethod() {
+                        throw new AbstractMethodError();
+                    }
+                });
+        RECEIVERS = Collections.unmodifiableMap(map);
+    }
+
+}