test/testlibrary/whitebox/sun/hotspot/WhiteBox.java

*** 92,97 ****
--- 92,103 ----
    public native int     deoptimizeMethod(Method method);
    public native void    makeMethodNotCompilable(Method method);
    public native int     getMethodCompilationLevel(Method method);
    public native boolean setDontInlineMethod(Method method, boolean value);
    public native int     getCompileQueuesSize();
+ 
+   //Intered strings
+   public native boolean isInStringTable(String str);
+   
+   // force Full GC
+   public native void fullGC();
  }