1 //
   2 // Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved.
   3 // Copyright (c) 2015, Red Hat Inc. All rights reserved.
   4 // DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5 //
   6 // This code is free software; you can redistribute it and/or modify it
   7 // under the terms of the GNU General Public License version 2 only, as
   8 // published by the Free Software Foundation.
   9 //
  10 // This code is distributed in the hope that it will be useful, but WITHOUT
  11 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12 // FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13 // version 2 for more details (a copy is included in the LICENSE file that
  14 // accompanied this code).
  15 //
  16 // You should have received a copy of the GNU General Public License version
  17 // 2 along with this work; if not, write to the Free Software Foundation,
  18 // Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19 //
  20 // Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21 // or visit www.oracle.com if you need additional information or have any
  22 // questions.
  23 //
  24 //
  25 
  26 import com.oracle.java.testlibrary.Utils;
  27 import static java.lang.Math.abs;
  28 import java.nio.ByteBuffer;
  29 import java.nio.ByteOrder;
  30 import static java.nio.ByteOrder.BIG_ENDIAN;
  31 import static java.nio.ByteOrder.LITTLE_ENDIAN;
  32 import java.util.Random;
  33 import java.util.Arrays;
  34 
  35 /**
  36  * @test
  37  * @bug 8026049
  38  * @library /testlibrary
  39  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:-UseUnalignedAccesses HeapByteBufferTest
  40  * @run main/othervm HeapByteBufferTest
  41  * @summary Verify that byte buffers are correctly accessed.
  42  */
  43 
  44 // A wrapper for a ByteBuffer which maintains a backing array and a
  45 // position.  Whenever this wrapper is written the backing array and
  46 // the wrapped byte buffer are updated together, and whenever it is

   1 //
   2 // Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.
   3 // Copyright (c) 2015, Red Hat Inc. All rights reserved.
   4 // DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5 //
   6 // This code is free software; you can redistribute it and/or modify it
   7 // under the terms of the GNU General Public License version 2 only, as
   8 // published by the Free Software Foundation.
   9 //
  10 // This code is distributed in the hope that it will be useful, but WITHOUT
  11 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12 // FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13 // version 2 for more details (a copy is included in the LICENSE file that
  14 // accompanied this code).
  15 //
  16 // You should have received a copy of the GNU General Public License version
  17 // 2 along with this work; if not, write to the Free Software Foundation,
  18 // Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19 //
  20 // Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21 // or visit www.oracle.com if you need additional information or have any
  22 // questions.
  23 //
  24 //
  25 
  26 import jdk.test.lib.Utils;
  27 import static java.lang.Math.abs;
  28 import java.nio.ByteBuffer;
  29 import java.nio.ByteOrder;
  30 import static java.nio.ByteOrder.BIG_ENDIAN;
  31 import static java.nio.ByteOrder.LITTLE_ENDIAN;
  32 import java.util.Random;
  33 import java.util.Arrays;
  34 
  35 /**
  36  * @test
  37  * @bug 8026049
  38  * @library /testlibrary
  39  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:-UseUnalignedAccesses HeapByteBufferTest
  40  * @run main/othervm HeapByteBufferTest
  41  * @summary Verify that byte buffers are correctly accessed.
  42  */
  43 
  44 // A wrapper for a ByteBuffer which maintains a backing array and a
  45 // position.  Whenever this wrapper is written the backing array and
  46 // the wrapped byte buffer are updated together, and whenever it is