test/sun/tools/jps/JpsHelper.java

@@ -90,11 +90,11 @@
     }
 
     /**
      * VM arguments to start test application with
      */
-    public static final String[] VM_ARGS = {"-Xmx512m", "-XX:+UseParallelGC"};
+    public static final String[] VM_ARGS = {"-Xmx512m", "-XX:+PrintGCDetails"};
     /**
      * VM flag to start test application with
      */
     public static final String VM_FLAG = "+DisableExplicitGC";