test/compiler/intrinsics/unsafe/HeapByteBufferTest.java

*** 1,56 ****
! //
! // Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.
! // Copyright (c) 2015, Red Hat Inc. 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.
! //
! //
  
  import java.nio.BufferOverflowException;
  import java.nio.BufferUnderflowException;
  import java.nio.ByteBuffer;
- import static java.nio.ByteOrder.BIG_ENDIAN;
- import static java.nio.ByteOrder.LITTLE_ENDIAN;
  import java.nio.ByteOrder;
  import java.util.Arrays;
  import java.util.Random;
- import jdk.test.lib.Utils;
  
! /**
!  * @test
!  * @bug 8026049
!  * @modules java.base/jdk.internal.misc
!  * @library /testlibrary
!  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:-UseUnalignedAccesses -Djdk.test.lib.random.seed=0 HeapByteBufferTest
!  * @run main/othervm -Djdk.test.lib.random.seed=0 HeapByteBufferTest
!  * @summary Verify that byte buffers are correctly accessed.
!  */
  
  // A wrapper for a ByteBuffer which maintains a backing array and a
  // position.  Whenever this wrapper is written the backing array and
  // the wrapped byte buffer are updated together, and whenever it is
  // read we check that the ByteBuffer and the backing array are identical.
  
! class MyByteBuffer {
      final ByteBuffer buf;
      final byte[] bytes;
      int pos;
      ByteOrder byteOrder = BIG_ENDIAN;
  
--- 1,64 ----
! /*
!  * Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.
!  * Copyright (c) 2015, Red Hat Inc. 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 8026049
!  * @summary Verify that byte buffers are correctly accessed.
!  * @modules java.base/jdk.internal.misc
!  * @library /testlibrary
!  *
!  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:-UseUnalignedAccesses -Djdk.test.lib.random.seed=0
!  *      compiler.intrinsics.unsafe.HeapByteBufferTest
!  * @run main/othervm -Djdk.test.lib.random.seed=0
!  *      compiler.intrinsics.unsafe.HeapByteBufferTest
!  */
! 
! package compiler.intrinsics.unsafe;
! 
! import jdk.test.lib.Utils;
  
  import java.nio.BufferOverflowException;
  import java.nio.BufferUnderflowException;
  import java.nio.ByteBuffer;
  import java.nio.ByteOrder;
  import java.util.Arrays;
  import java.util.Random;
  
! import static java.nio.ByteOrder.BIG_ENDIAN;
! import static java.nio.ByteOrder.LITTLE_ENDIAN;
  
  // A wrapper for a ByteBuffer which maintains a backing array and a
  // position.  Whenever this wrapper is written the backing array and
  // the wrapped byte buffer are updated together, and whenever it is
  // read we check that the ByteBuffer and the backing array are identical.
  
! public class HeapByteBufferTest implements Runnable {
!     static class MyByteBuffer {
          final ByteBuffer buf;
          final byte[] bytes;
          int pos;
          ByteOrder byteOrder = BIG_ENDIAN;
  
*** 239,251 ****
      void putChar(char x) { putShortX(pos, (short)x); pos += 2; buf.putChar(x); }
      void putDouble(double x) { putLongX(pos, Double.doubleToRawLongBits(x)); pos += 8; buf.putDouble(x); }
      void putFloat(float x) { putIntX(pos, Float.floatToRawIntBits(x)); pos += 4; buf.putFloat(x); }
  
      void rewind() { pos = 0; buf.rewind(); }
! }
! 
! public class HeapByteBufferTest implements Runnable {
  
      Random random = Utils.getRandomInstance();
      MyByteBuffer data = MyByteBuffer.wrap(new byte[1024]);
  
      int randomOffset(Random r, MyByteBuffer buf, int size) {
--- 247,257 ----
          void putChar(char x) { putShortX(pos, (short)x); pos += 2; buf.putChar(x); }
          void putDouble(double x) { putLongX(pos, Double.doubleToRawLongBits(x)); pos += 8; buf.putDouble(x); }
          void putFloat(float x) { putIntX(pos, Float.floatToRawIntBits(x)); pos += 4; buf.putFloat(x); }
  
          void rewind() { pos = 0; buf.rewind(); }
!     }
  
      Random random = Utils.getRandomInstance();
      MyByteBuffer data = MyByteBuffer.wrap(new byte[1024]);
  
      int randomOffset(Random r, MyByteBuffer buf, int size) {