src/jdk.jcmd/share/classes/sun/tools/jcmd/Arguments.java

rev 48074 : 8189102: All tools should support -?, -h and --help
Reviewed-by: kvn, jjg, weijun, alanb, rfield, ksrini

*** 1,7 ****
  /*
!  * Copyright (c) 2011, 2012, 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.  Oracle designates this
--- 1,7 ----
  /*
!  * Copyright (c) 2011, 2017, 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.  Oracle designates this
*** 48,58 ****
              /* list all processes */
              processString = "0";
              return;
          }
  
!         if (args[0].equals("-h") || args[0].equals("-help") ) {
              showUsage = true;
              return;
          }
  
          processString = args[0];
--- 48,62 ----
              /* list all processes */
              processString = "0";
              return;
          }
  
!         if (args[0].equals("-?") ||
!             args[0].equals("-h") ||
!             args[0].equals("--help") ||
!             // -help: legacy.
!             args[0].equals("-help")) {
              showUsage = true;
              return;
          }
  
          processString = args[0];
*** 114,121 ****
          System.out.println("  If no options are given, lists Java processes (same as -l).     ");
          System.out.println("                                                                  ");
          System.out.println("  PerfCounter.print display the counters exposed by this process  ");
          System.out.println("  -f  read and execute commands from the file                     ");
          System.out.println("  -l  list JVM processes on the local machine                     ");
!         System.out.println("  -h  this help                                                   ");
      }
  }
--- 118,125 ----
          System.out.println("  If no options are given, lists Java processes (same as -l).     ");
          System.out.println("                                                                  ");
          System.out.println("  PerfCounter.print display the counters exposed by this process  ");
          System.out.println("  -f  read and execute commands from the file                     ");
          System.out.println("  -l  list JVM processes on the local machine                     ");
!         System.out.println("  -? -h --help print this help message                            ");
      }
  }