1 /*
   2  * Copyright (c) 2014, 2017, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   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 jdk.test.lib.process.ProcessTools;
  25 import jdk.test.lib.process.OutputAnalyzer;
  26 
  27 /*
  28  * @test TestNullTerminatedFlags
  29  * @bug 6522873
  30  * @summary Test that the VM don't allow random junk characters at the end of valid command line flags.
  31  * @library /test/lib
  32  * @modules java.base/jdk.internal.misc
  33  *          java.management
  34  * @run driver TestNullTerminatedFlags
  35  */
  36 public class TestNullTerminatedFlags {
  37    public static String[] options = {
  38             "-Xnoclassgc",
  39             "-Xconcgc",
  40             "-Xnoconcgc",
  41             "-Xbatch",
  42             "-green",
  43             "-native",
  44             "-Xrs",
  45             "-Xprof",
  46             "-Xconcurrentio",
  47             "-Xinternalversion",
  48             "-Xprintflags",
  49             "-Xint",
  50             "-Xmixed",
  51             "-Xcomp",
  52             "-Xshare:dump",
  53             "-Xshare:on",
  54             "-Xshare:auto",
  55             "-Xshare:off",
  56             "-Xdebug",
  57             "-Xnoagent"
  58         };
  59 
  60     public static void main(String args[]) throws Exception{
  61         for (String option : options) {
  62             String testOption = option + "junk";
  63             ProcessBuilder pb =
  64                 ProcessTools.createJavaProcessBuilder(testOption, "-version");
  65             new OutputAnalyzer(pb.start())
  66                     .shouldContain("Unrecognized option: " + testOption)
  67                     .shouldHaveExitValue(1);
  68         }
  69     }
  70 }
  71