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test/jdk/sun/tools/jcmd/JcmdBase.java

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rev 51638 : [mq]: 8210112


   6  * under the terms of the GNU General Public License version 2 only, as
   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 import java.util.Arrays;
  25 
  26 import jdk.testlibrary.OutputAnalyzer;
  27 import jdk.testlibrary.ProcessTools;
  28 import jdk.testlibrary.JDKToolLauncher;
  29 
  30 /**
  31  * Helper class for starting jcmd process.
  32  * <pre>
  33  * - jcmd will send diagnostic requests to the current java process:
  34  *      jcmd pid_to_current_process PerfCounter.print
  35  * - jcmd will be run without sending request to any JVM
  36  *      jcmd -h
  37  * </pre>
  38  */
  39 public final class JcmdBase {
  40 
  41     private static ProcessBuilder processBuilder = new ProcessBuilder();
  42 
  43     private JcmdBase() {
  44         // Private constructor to prevent class instantiation
  45     }
  46 
  47     /**




   6  * under the terms of the GNU General Public License version 2 only, as
   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 import java.util.Arrays;
  25 
  26 import jdk.test.lib.process.OutputAnalyzer;
  27 import jdk.test.lib.process.ProcessTools;
  28 import jdk.testlibrary.JDKToolLauncher;
  29 
  30 /**
  31  * Helper class for starting jcmd process.
  32  * <pre>
  33  * - jcmd will send diagnostic requests to the current java process:
  34  *      jcmd pid_to_current_process PerfCounter.print
  35  * - jcmd will be run without sending request to any JVM
  36  *      jcmd -h
  37  * </pre>
  38  */
  39 public final class JcmdBase {
  40 
  41     private static ProcessBuilder processBuilder = new ProcessBuilder();
  42 
  43     private JcmdBase() {
  44         // Private constructor to prevent class instantiation
  45     }
  46 
  47     /**


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