jdk8-mips64-public/hotspot: test/compiler/jsr292/VMAnonymousClasses.java@9dc314de223d (annotated)

test/compiler/jsr292/VMAnonymousClasses.java@9dc314de223d (annotated)

test/compiler/jsr292/VMAnonymousClasses.java

Wed, 01 Oct 2014 12:34:38 -0700

author: vlivanov
date: Wed, 01 Oct 2014 12:34:38 -0700
changeset 7288: 9dc314de223d
child 8451: 649f01d13b2d
permissions: -rw-r--r--

8058828: Wrong ciConstant type for arrays from ConstantPool::_resolved_reference
Reviewed-by: kvn, jrose

 /*
  * 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.
  */
 /**
  * @test
  * @bug 8058828
  * @run main/bootclasspath -Xbatch VMAnonymousClasses
  */
 import jdk.internal.org.objectweb.asm.ClassWriter;
 import jdk.internal.org.objectweb.asm.MethodVisitor;
 import jdk.internal.org.objectweb.asm.Opcodes;
 import sun.misc.Unsafe;
 import java.lang.invoke.ConstantCallSite;
 import java.lang.invoke.MethodHandle;
 import java.lang.invoke.MethodHandles;
 import java.lang.invoke.MethodType;
 import java.lang.invoke.MutableCallSite;
 import java.lang.invoke.VolatileCallSite;
 public class VMAnonymousClasses {
     static final String TEST_METHOD_NAME = "constant";
     static final Unsafe UNSAFE = Unsafe.getUnsafe();
     static int getConstantPoolSize(byte[] classFile) {
         // The first few bytes:
         // u4 magic;
         // u2 minor_version;
         // u2 major_version;
         // u2 constant_pool_count;
         return ((classFile[8] & 0xFF) << 8) | (classFile[9] & 0xFF);
     }
     static void test(Object value) throws ReflectiveOperationException {
         System.out.printf("Test: %s", value != null ? value.getClass() : "null");
         ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS | ClassWriter.COMPUTE_FRAMES);
         cw.visit(Opcodes.V1_8, Opcodes.ACC_PUBLIC | Opcodes.ACC_SUPER, "Test", null, "java/lang/Object", null);
         MethodVisitor mv = cw.visitMethod(Opcodes.ACC_STATIC | Opcodes.ACC_PUBLIC, TEST_METHOD_NAME, "()Ljava/lang/Object;", null, null);
         String placeholder = "CONSTANT";
         int index = cw.newConst(placeholder);
         mv.visitLdcInsn(placeholder);
         mv.visitInsn(Opcodes.ARETURN);
         mv.visitMaxs(0, 0);
         mv.visitEnd();
         byte[] classFile = cw.toByteArray();
         Object[] cpPatches = new Object[getConstantPoolSize(classFile)];
         cpPatches[index] = value;
         Class<?> test = UNSAFE.defineAnonymousClass(VMAnonymousClasses.class, classFile, cpPatches);
         Object expectedResult = (value != null) ? value : placeholder;
         for (int i = 0; i<15000; i++) {
             Object result = test.getMethod(TEST_METHOD_NAME).invoke(null);
             if (result != expectedResult) {
                 throw new AssertionError(String.format("Wrong value returned: %s != %s", value, result));
             }
         }
         System.out.println(" PASSED");
     }
     public static void main(String[] args) throws ReflectiveOperationException  {
         // Objects
         test(new Object());
         test("TEST");
         test(new VMAnonymousClasses());
         test(null);
         // Class
         test(String.class);
         // Arrays
         test(new boolean[0]);
         test(new byte[0]);
         test(new char[0]);
         test(new short[0]);
         test(new int[0]);
         test(new long[0]);
         test(new float[0]);
         test(new double[0]);
         test(new Object[0]);
         // Multi-dimensional arrays
         test(new byte[0][0]);
         test(new Object[0][0]);
         // MethodHandle-related
         MethodType   mt = MethodType.methodType(void.class, String[].class);
         MethodHandle mh = MethodHandles.lookup().findStatic(VMAnonymousClasses.class, "main", mt);
         test(mt);
         test(mh);
         test(new ConstantCallSite(mh));
         test(new MutableCallSite(MethodType.methodType(void.class)));
         test(new VolatileCallSite(MethodType.methodType(void.class)));
         System.out.println("TEST PASSED");
     }
 }

Mercurial > jdk8-mips64-public > hotspot / annotate

test/compiler/jsr292/VMAnonymousClasses.java@9dc314de223d (annotated)

test/compiler/jsr292/VMAnonymousClasses.java