--- /dev/null	2015-10-08 07:26:40.000000000 -1000
+++ new/test/compiler/jvmci/compilerToVM/GetConstantPoolTest.java	2015-10-08 07:26:40.000000000 -1000
@@ -0,0 +1,218 @@
+/*
+ * 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
+ * @bug 8136421
+ * @requires (os.simpleArch == "x64" | os.simpleArch == "sparcv9") & os.arch != "aarch64"
+ * @library /testlibrary /../../test/lib /
+ * @compile ../common/CompilerToVMHelper.java
+ * @build sun.hotspot.WhiteBox
+ *        compiler.jvmci.compilerToVM.GetConstantPoolTest
+ * @run main ClassFileInstaller sun.hotspot.WhiteBox
+ *                              sun.hotspot.WhiteBox$WhiteBoxPermission
+ *                              jdk.vm.ci.hotspot.CompilerToVMHelper
+ * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
+ *                   -XX:+WhiteBoxAPI -XX:+UnlockExperimentalVMOptions
+ *                   -XX:+EnableJVMCI compiler.jvmci.compilerToVM.GetConstantPoolTest
+ */
+package compiler.jvmci.compilerToVM;
+
+import java.lang.reflect.Field;
+import jdk.vm.ci.hotspot.CompilerToVMHelper;
+import jdk.vm.ci.hotspot.HotSpotConstantPool;
+import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethodImpl;
+import jdk.vm.ci.hotspot.HotSpotResolvedObjectTypeImpl;
+import jdk.vm.ci.hotspot.MetaspaceWrapperObject;
+import jdk.test.lib.Utils;
+import sun.hotspot.WhiteBox;
+import sun.misc.Unsafe;
+
+/**
+ * Tests for jdk.vm.ci.hotspot.CompilerToVM::getConstantPool method
+ */
+public class GetConstantPoolTest {
+    private static enum TestCase {
+        NULL_BASE {
+            @Override
+            HotSpotConstantPool getConstantPool() {
+                return CompilerToVMHelper.getConstantPool(null,
+                        getPtrToCpAddress());
+            }
+        },
+        JAVA_METHOD_BASE {
+            @Override
+            HotSpotConstantPool getConstantPool() {
+                HotSpotResolvedJavaMethodImpl methodInstance
+                        = CompilerToVMHelper.getResolvedJavaMethodAtSlot(
+                                TEST_CLASS, 0);
+                Field field;
+                try {
+                    field = HotSpotResolvedJavaMethodImpl
+                            .class.getDeclaredField("metaspaceMethod");
+                    field.setAccessible(true);
+                    field.set(methodInstance, getPtrToCpAddress());
+                } catch (ReflectiveOperationException e) {
+                    throw new Error("TESTBUG : " + e.getMessage(), e);
+                }
+
+                return CompilerToVMHelper.getConstantPool(methodInstance, 0L);
+            }
+        },
+        CONSTANT_POOL_BASE {
+            @Override
+            HotSpotConstantPool getConstantPool() {
+                HotSpotConstantPool cpInst;
+                try {
+                    cpInst = CompilerToVMHelper.getConstantPool(null,
+                            getPtrToCpAddress());
+                    Field field = HotSpotConstantPool.class
+                            .getDeclaredField("metaspaceConstantPool");
+                    field.setAccessible(true);
+                    field.set(cpInst, getPtrToCpAddress());
+                } catch (ReflectiveOperationException e) {
+                    throw new Error("TESTBUG : " + e.getMessage(), e);
+                }
+                return CompilerToVMHelper.getConstantPool(cpInst, 0L);
+            }
+        },
+        CONSTANT_POOL_BASE_IN_TWO {
+            @Override
+            HotSpotConstantPool getConstantPool() {
+                long ptr = getPtrToCpAddress();
+                HotSpotConstantPool cpInst;
+                try {
+                    cpInst = CompilerToVMHelper.getConstantPool(null, ptr);
+                    Field field = HotSpotConstantPool.class
+                            .getDeclaredField("metaspaceConstantPool");
+                    field.setAccessible(true);
+                    field.set(cpInst, ptr / 2L);
+                } catch (ReflectiveOperationException e) {
+                    throw new Error("TESTBUG : " + e.getMessage(), e);
+                }
+                return CompilerToVMHelper.getConstantPool(cpInst,
+                        ptr - ptr / 2L);
+            }
+        },
+        CONSTANT_POOL_BASE_ZERO {
+            @Override
+            HotSpotConstantPool getConstantPool() {
+                long ptr = getPtrToCpAddress();
+                HotSpotConstantPool cpInst;
+                try {
+                    cpInst = CompilerToVMHelper.getConstantPool(null, ptr);
+                    Field field = HotSpotConstantPool.class
+                            .getDeclaredField("metaspaceConstantPool");
+                    field.setAccessible(true);
+                    field.set(cpInst, 0L);
+                } catch (ReflectiveOperationException e) {
+                    throw new Error("TESTBUG : " + e.getMessage(), e);
+                }
+                return CompilerToVMHelper.getConstantPool(cpInst, ptr);
+            }
+        },
+        OBJECT_TYPE_BASE {
+            @Override
+            HotSpotConstantPool getConstantPool() {
+                HotSpotResolvedObjectTypeImpl type
+                        = HotSpotResolvedObjectTypeImpl.fromObjectClass(
+                                OBJECT_TYPE_BASE.getClass());
+                long ptrToClass = UNSAFE.getKlassPointer(OBJECT_TYPE_BASE);
+                return CompilerToVMHelper.getConstantPool(type,
+                        getPtrToCpAddress() - ptrToClass);
+            }
+        },
+        ;
+        abstract HotSpotConstantPool getConstantPool();
+    }
+
+    private static final WhiteBox WB = WhiteBox.getWhiteBox();
+    private static final Unsafe UNSAFE = Utils.getUnsafe();
+    private static final Class TEST_CLASS = GetConstantPoolTest.class;
+    private static final long CP_ADDRESS
+            = WB.getConstantPool(GetConstantPoolTest.class);
+
+    public void test(TestCase testCase) {
+        System.out.println(testCase.name());
+        HotSpotConstantPool cp = testCase.getConstantPool();
+        String cpStringRep = cp.toString();
+        if (!cpStringRep.contains(HotSpotConstantPool.class.getSimpleName())
+                || !cpStringRep.contains(TEST_CLASS.getName())) {
+            String msg = String.format("%s : "
+                    + " Constant pool is not valid."
+                    + " String representation should contain \"%s\" and \"%s\"",
+                    testCase.name(),
+                    HotSpotConstantPool.class.getSimpleName(),
+                    TEST_CLASS.getName());
+            throw new AssertionError(msg);
+        }
+    }
+
+    public static void main(String[] args) {
+        GetConstantPoolTest test = new GetConstantPoolTest();
+        for (TestCase testCase : TestCase.values()) {
+            test.test(testCase);
+        }
+        testObjectBase();
+        testMetaspaceWrapperBase();
+    }
+
+    private static void testObjectBase() {
+        try {
+            HotSpotConstantPool cp
+                    = CompilerToVMHelper.getConstantPool(new Object(), 0L);
+            throw new AssertionError("Test OBJECT_BASE."
+                + " Expected IllegalArgumentException has not been caught");
+        } catch (IllegalArgumentException iae) {
+            // expected
+        }
+    }
+    private static void testMetaspaceWrapperBase() {
+        try {
+            HotSpotConstantPool cp = CompilerToVMHelper.getConstantPool(
+                    new MetaspaceWrapperObject() {
+                        @Override
+                        public long getMetaspacePointer() {
+                            return getPtrToCpAddress();
+                        }
+                    }, 0L);
+            throw new AssertionError("Test METASPACE_WRAPPER_BASE."
+                + " Expected IllegalArgumentException has not been caught");
+        } catch (IllegalArgumentException iae) {
+            // expected
+        }
+    }
+
+    private static long getPtrToCpAddress() {
+        Field field;
+        try {
+            field = TEST_CLASS.getDeclaredField("CP_ADDRESS");
+        } catch (NoSuchFieldException nsfe) {
+            throw new Error("TESTBUG : cannot find field \"CP_ADDRESS\" : "
+                    + nsfe.getMessage(), nsfe);
+        }
+        Object base = UNSAFE.staticFieldBase(field);
+        return WB.getObjectAddress(base) + UNSAFE.staticFieldOffset(field);
+    }
+}