TestPrintGCDetails.java

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 * version 2 for more details (a copy is included in the LICENSE file that
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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 TestPrintGCDetails
 * @bug 8010738
 * @summary Ensure that the PrintGCDetails for a full GC with G1 includes Metaspace.
 * @key gc
 * @key regression
 * @library /testlibrary
 */

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

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

    ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UseG1GC",
                                                              "-XX:+PrintGCDetails",
                                                              SystemGCTest.class.getName());

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

    System.out.println("Output:\n" + output.getOutput());

    output.shouldContain("Metaspace");
    output.shouldHaveExitValue(0);
  }

  static class SystemGCTest {
    public static void main(String [] args) {
      System.out.println("Calling System.gc()");
      System.gc();
    }
  }
}