/*

/*

 * @test TestUnrecognizedVMOptionsHandling

 * @key gc

 * @bug 8017611

 * @summary Tests handling unrecognized VM options

 * @library /test/lib

 * @modules java.base/jdk.internal.misc

 *          java.management

 * @run main/othervm TestUnrecognizedVMOptionsHandling

 */

import jdk.test.lib.process.OutputAnalyzer;

import jdk.test.lib.process.ProcessTools;

public class TestUnrecognizedVMOptionsHandling {

  public static void main(String args[]) throws Exception {

    // The first two JAVA processes are expected to fail, but with a correct VM option suggestion

    ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(

      "-XX:+UseDynamicNumberOfGcThreads",

      "-version"

      );

    OutputAnalyzer outputWithError = new OutputAnalyzer(pb.start());

    outputWithError.shouldContain("Did you mean '(+/-)UseDynamicNumberOfGCThreads'?");

    if (outputWithError.getExitValue() == 0) {

      throw new RuntimeException("Not expected to get exit value 0");

    }

    pb = ProcessTools.createJavaProcessBuilder(

      "-XX:MaxiumHeapSize=500m",

      "-version"

      );

    outputWithError = new OutputAnalyzer(pb.start());

    outputWithError.shouldContain("Did you mean 'MaxHeapSize=<value>'?");

    if (outputWithError.getExitValue() == 0) {

      throw new RuntimeException("Not expected to get exit value 0");

    }

    // The last JAVA process should run successfully for the purpose of sanity check

    pb = ProcessTools.createJavaProcessBuilder(

      "-XX:+UseDynamicNumberOfGCThreads",

      "-version"

      );

    OutputAnalyzer outputWithNoError = new OutputAnalyzer(pb.start());

    outputWithNoError.shouldNotContain("Did you mean '(+/-)UseDynamicNumberOfGCThreads'?");

    outputWithNoError.shouldHaveExitValue(0);

  }

}