test/gc/startup_warnings/TestCMSForegroundFlags.java

/*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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/*
* @test TestCMSForegroundFlags
* @key gc
* @bug 8027132
* @summary Test that the deprecated CMS foreground collector flags print warning messages
* @library /testlibrary
* @run main TestCMSForegroundFlags -XX:-UseCMSCompactAtFullCollection UseCMSCompactAtFullCollection
* @run main TestCMSForegroundFlags -XX:CMSFullGCsBeforeCompaction=4 CMSFullGCsBeforeCompaction
* @run main TestCMSForegroundFlags -XX:-UseCMSCollectionPassing UseCMSCollectionPassing
*/

import com.oracle.java.testlibrary.OutputAnalyzer;
import com.oracle.java.testlibrary.ProcessTools;

public class TestCMSForegroundFlags {
  public static void main(String[] args) throws Exception {
    if (args.length != 2) {
      throw new Exception("Expected two arguments,flagValue and flagName");
    }
    String flagValue = args[0];
    String flagName = args[1];

    ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(flagValue, "-version");
    OutputAnalyzer output = new OutputAnalyzer(pb.start());
    output.shouldContain("warning: " + flagName + " is deprecated and will likely be removed in a future release.");
    output.shouldNotContain("error");
    output.shouldHaveExitValue(0);
  }
}