1 /*
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   3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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   5 * This code is free software; you can redistribute it and/or modify it
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   7 * published by the Free Software Foundation.
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  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).
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  23 
  24 /*
  25  * @test TestUnrecognizedVMOptionsHandling
  26  * @key gc
  27  * @bug 8017611
  28  * @summary Tests handling unrecognized VM options
  29  * @library /test/lib
  30  * @modules java.base/jdk.internal.misc
  31  *          java.management
  32  * @run main/othervm TestUnrecognizedVMOptionsHandling
  33  */
  34 
  35 import jdk.test.lib.process.OutputAnalyzer;
  36 import jdk.test.lib.process.ProcessTools;
  37 
  38 public class TestUnrecognizedVMOptionsHandling {
  39 
  40   public static void main(String args[]) throws Exception {
  41     // The first two JAVA processes are expected to fail, but with a correct VM option suggestion
  42     ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  43       "-XX:+UseDynamicNumberOfGcThreads",
  44       "-version"
  45       );
  46     OutputAnalyzer outputWithError = new OutputAnalyzer(pb.start());
  47     outputWithError.shouldContain("Did you mean '(+/-)UseDynamicNumberOfGCThreads'?");
  48     if (outputWithError.getExitValue() == 0) {
  49       throw new RuntimeException("Not expected to get exit value 0");
  50     }
  51 
  52     pb = ProcessTools.createJavaProcessBuilder(
  53       "-XX:MaxiumHeapSize=500m",
  54       "-version"
  55       );
  56     outputWithError = new OutputAnalyzer(pb.start());
  57     outputWithError.shouldContain("Did you mean 'MaxHeapSize=<value>'?");
  58     if (outputWithError.getExitValue() == 0) {
  59       throw new RuntimeException("Not expected to get exit value 0");
  60     }
  61 
  62     // The last JAVA process should run successfully for the purpose of sanity check
  63     pb = ProcessTools.createJavaProcessBuilder(
  64       "-XX:+UseDynamicNumberOfGCThreads",
  65       "-version"
  66       );
  67     OutputAnalyzer outputWithNoError = new OutputAnalyzer(pb.start());
  68     outputWithNoError.shouldNotContain("Did you mean '(+/-)UseDynamicNumberOfGCThreads'?");
  69     outputWithNoError.shouldHaveExitValue(0);
  70   }
  71 }
  72