8014737: java/lang/invoke/7196190/MHProxyTest.java fails after 8009424

Reviewed-by: twisti

test/java/lang/invoke/7196190/MHProxyTest.java

-/*
- * Copyright (c) 2012, 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 7196190
- * @summary Improve method of handling MethodHandles
- *
- * @run main/othervm MHProxyTest
- */
-
-import java.lang.invoke.*;
-import java.security.*;
-import static java.lang.invoke.MethodHandles.*;
-import static java.lang.invoke.MethodType.*;
-
-public class MHProxyTest {
-    private static final Class<?> C_Unsafe;
-    private static final MethodHandle MH_getUnsafe;
-    static {
-        // Do these before there is a SM installed.
-        C_Unsafe = sun.misc.Unsafe.class;  // EXPECT A WARNING ON THIS LINE
-        Lookup lookup = lookup();
-        MethodHandle gumh = null;
-        try {
-            gumh = lookup.findStatic(C_Unsafe, "getUnsafe", methodType(C_Unsafe));
-        } catch (ReflectiveOperationException ex) {
-            throw new InternalError(ex.toString());
-        }
-        MH_getUnsafe = gumh;
-        // Try some different lookups:
-        try {
-            lookup.in(Object.class).findStatic(C_Unsafe, "getUnsafe", methodType(C_Unsafe));
-        } catch (ReflectiveOperationException ex) {
-            throw new InternalError(ex.toString());
-        }
-        lookup = lookup().in(C_Unsafe);
-        try {
-            lookup.in(C_Unsafe).findStatic(C_Unsafe, "getUnsafe", methodType(C_Unsafe));
-        } catch (ReflectiveOperationException ex) {
-            throw new InternalError(ex.toString());
-        }
-    }
-
-    public static void main(String[] args) throws Throwable {
-        System.setSecurityManager(new SecurityManager());
-        Lookup lookup = lookup();
-        testBasic(lookup);
-        testDoPriv(lookup);
-        testSetVar();
-        Lookup l2 = lookup.in(Object.class);
-        System.out.println("=== "+l2);
-        testBasic(l2);
-        testDoPriv(l2);
-        Lookup l3 = lookup.in(C_Unsafe);
-        System.out.println("=== "+l3);
-        testBasic(l3);
-        testDoPriv(l3);
-        if (failure != null)
-            throw failure;
-    }
-
-    private static Throwable failure;
-    private static void fail(Throwable ex) {
-        if (failure == null)
-            failure = ex;
-        StackTraceElement frame = new Exception().getStackTrace()[1];
-        System.out.printf("Failed at %s:%d: %s\n", frame.getFileName(), frame.getLineNumber(), ex);
-    }
-    private static void ok(Throwable ex) {
-        StackTraceElement frame = new Exception().getStackTrace()[1];
-        System.out.printf("OK at %s:%d: %s\n", frame.getFileName(), frame.getLineNumber(), ex);
-    }
-
-    private static void testBasic(Lookup lookup) throws Throwable {
-        // Verify that we can't get to this guy under the SM:
-        try {
-            MethodHandle badmh = lookup.findStatic(C_Unsafe, "getUnsafe", methodType(C_Unsafe));
-            assert(badmh.type() == methodType(C_Unsafe));
-            badmh = badmh.asType(badmh.type().generic());
-            Object u = C_Unsafe.cast(badmh.invokeExact());
-            assert(C_Unsafe.isInstance(u));
-            fail(new AssertionError("got mh to getUnsafe!"));
-        } catch (SecurityException ex) {
-            ok(ex);
-        }
-        try {
-            Object u = MH_getUnsafe.invokeWithArguments();
-            assert(C_Unsafe.isInstance(u));
-            fail(new AssertionError("got the Unsafe object! (MH invoke)"));
-        } catch (SecurityException ex) {
-            ok(ex);
-        }
-        try {
-            MethodHandle mh = MH_getUnsafe;
-            mh = mh.asType(mh.type().generic());
-            mh = foldArguments(identity(Object.class), mh);
-            mh = filterReturnValue(mh, identity(Object.class));
-            Object u = mh.invokeExact();
-            assert(C_Unsafe.isInstance(u));
-            fail(new AssertionError("got the Unsafe object! (MH invokeWithArguments)"));
-        } catch (SecurityException ex) {
-            ok(ex);
-        }
-    }
-
-    private static void testDoPriv(Lookup lookup) throws Throwable {
-        PrivilegedAction privAct = MethodHandleProxies.asInterfaceInstance(PrivilegedAction.class, MH_getUnsafe);
-        try {
-            Object u = AccessController.doPrivileged(privAct);
-            assert(C_Unsafe.isInstance(u));
-            fail(new AssertionError("got the Unsafe object! (static doPriv)"));
-        } catch (SecurityException ex) {
-            ok(ex);
-        }
-        MethodHandle MH_doPriv = lookup.findStatic(AccessController.class, "doPrivileged",
-                                                   methodType(Object.class, PrivilegedAction.class));
-        MH_doPriv = MH_doPriv.bindTo(privAct);
-        try {
-            Object u = MH_doPriv.invoke();
-            assert(C_Unsafe.isInstance(u));
-            fail(new AssertionError("got the Unsafe object! (MH + doPriv)"));
-        } catch (SecurityException ex) {
-            ok(ex);
-        }
-        // try one more layer of indirection:
-        Runnable rbl = MethodHandleProxies.asInterfaceInstance(Runnable.class, MH_doPriv);
-        try {
-            rbl.run();
-            fail(new AssertionError("got the Unsafe object! (Runnable + MH + doPriv)"));
-        } catch (SecurityException ex) {
-            ok(ex);
-        }
-    }
-
-    private static void testSetVar() throws Throwable {
-        {
-            // Test the box pattern:
-            Object[] box = new Object[1];
-            MethodHandle MH_getFoo = identity(Object.class).bindTo("foo");
-            MethodHandle MH_storeToBox = insertArguments(arrayElementSetter(Object[].class), 0, box, 0);
-            MethodHandle mh = filterReturnValue(MH_getFoo, MH_storeToBox);
-            mh.invokeExact();
-            assert(box[0] == "foo");
-        }
-        {
-            Object[] box = new Object[1];
-            MethodHandle MH_storeToBox = insertArguments(arrayElementSetter(Object[].class), 0, box, 0);
-            MethodHandle mh = filterReturnValue(MH_getUnsafe.asType(MH_getUnsafe.type().generic()), MH_storeToBox);
-            try {
-                mh.invokeExact();
-                Object u = box[0];
-                assert(C_Unsafe.isInstance(u));
-                fail(new AssertionError("got the Unsafe object! (MH + setElement)"));
-            } catch (SecurityException ex) {
-                ok(ex);
-            }
-        }
-    }
-}