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test/java/nio/channels/SocketChannel/ShortWrite.java

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   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /* @test
  25  * @bug 7176630 7074436
  26  * @summary Check for short writes on SocketChannels configured in blocking mode

  27  */
  28 
  29 import java.net.*;
  30 import java.nio.ByteBuffer;
  31 import java.nio.channels.*;
  32 import java.util.concurrent.*;
  33 import java.util.Random;
  34 import java.util.zip.CRC32;
  35 
  36 public class ShortWrite {
  37 
  38     static final Random rand = new Random();
  39 
  40     /**
  41      * Returns a checksum on the remaining bytes in the given buffers.
  42      */
  43     static long computeChecksum(ByteBuffer... bufs) {
  44         CRC32 crc32 = new CRC32();
  45         for (int i=0; i<bufs.length; i++)
  46             crc32.update(bufs[i]);




   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /* @test
  25  * @bug 7176630 7074436
  26  * @summary Check for short writes on SocketChannels configured in blocking mode
  27  * @key randomness
  28  */
  29 
  30 import java.net.*;
  31 import java.nio.ByteBuffer;
  32 import java.nio.channels.*;
  33 import java.util.concurrent.*;
  34 import java.util.Random;
  35 import java.util.zip.CRC32;
  36 
  37 public class ShortWrite {
  38 
  39     static final Random rand = new Random();
  40 
  41     /**
  42      * Returns a checksum on the remaining bytes in the given buffers.
  43      */
  44     static long computeChecksum(ByteBuffer... bufs) {
  45         CRC32 crc32 = new CRC32();
  46         for (int i=0; i<bufs.length; i++)
  47             crc32.update(bufs[i]);


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