CDSCompressedKPtrs.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
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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
 * @bug 8003424
 * @summary Testing UseCompressedClassPointers with CDS
 * @library /testlibrary
 * @run main CDSCompressedKPtrs
 */

import com.oracle.java.testlibrary.*;

public class CDSCompressedKPtrs {
  public static void main(String[] args) throws Exception {
    ProcessBuilder pb;
    if (Platform.is64bit()) {
      pb = ProcessTools.createJavaProcessBuilder(
        "-XX:+UseCompressedClassPointers", "-XX:+UseCompressedOops",
        "-XX:+UnlockDiagnosticVMOptions", "-XX:SharedArchiveFile=./sample.jsa", "-Xshare:dump");
      OutputAnalyzer output = new OutputAnalyzer(pb.start());
      try {
        output.shouldContain("Loading classes to share");
        output.shouldHaveExitValue(0);

        pb = ProcessTools.createJavaProcessBuilder(
          "-XX:+UseCompressedClassPointers", "-XX:+UseCompressedOops",
          "-XX:+UnlockDiagnosticVMOptions", "-XX:SharedArchiveFile=./sample.jsa", "-Xshare:on", "-version");
        output = new OutputAnalyzer(pb.start());
        output.shouldContain("sharing");
        output.shouldHaveExitValue(0);

      } catch (RuntimeException e) {
        // Report 'passed' if CDS was turned off.
        output.shouldContain("Unable to use shared archive");
        output.shouldHaveExitValue(1);
      }
    }
  }
}