test/hotspot/jtreg/gc/ergonomics/TestDynamicNumberOfGCThreads.java

rev 53507 : Fix shared tests to run without Shenandoah

*** 27,52 ****
--- 27,58 ----
   * @summary Ensure that UseDynamicNumberOfGCThreads runs
   * @requires vm.gc=="null"
   * @key gc
   * @modules java.base/jdk.internal.misc
   * @library /test/lib
+  * @build sun.hotspot.WhiteBox
+  * @run driver ClassFileInstaller sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission
+  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI TestDynamicNumberOfGCThreads
   */
  
  import jdk.test.lib.process.OutputAnalyzer;
  import jdk.test.lib.process.ProcessTools;
+ import sun.hotspot.gc.GC;
  
  public class TestDynamicNumberOfGCThreads {
    public static void main(String[] args) throws Exception {
  
      testDynamicNumberOfGCThreads("UseConcMarkSweepGC");
  
      testDynamicNumberOfGCThreads("UseG1GC");
  
      testDynamicNumberOfGCThreads("UseParallelGC");
  
+     if (GC.Shenandoah.isSupported()) {
          testDynamicNumberOfGCThreads("UseShenandoahGC");
      }
+   }
  
    private static void verifyDynamicNumberOfGCThreads(OutputAnalyzer output) {
      output.shouldHaveExitValue(0); // test should run succesfully
      output.shouldContain("new_active_workers");
    }