UnrecognizedVMOption.java

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/*
 * @test
 * @bug 8006298 8204055
 * @summary Using an unrecognized VM option should print the name of the option
 * @library /test/lib
 * @modules java.base/jdk.internal.misc
 *          java.management
 * @run driver UnrecognizedVMOption
 */

import jdk.test.lib.process.ProcessTools;
import jdk.test.lib.process.OutputAnalyzer;

public class UnrecognizedVMOption {
  public static void main(String[] args) throws Exception {
    // Note: -XX by itself is an unrecognized launcher option, the :
    // must be present for it to be passed through as a VM option.
    String[] badOptions = {
      "",  // empty option
      "bogus_option",
    };
    for (String option : badOptions) {
      ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
          "-XX:" + option, "-version");

      OutputAnalyzer output = new OutputAnalyzer(pb.start());
      output.shouldContain("Unrecognized VM option '" + option + "'");
      output.shouldHaveExitValue(1);
    }
  }
}