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

rev 6891 : 8062247: [TESTBUG] Allow WhiteBox test to access JVM offsets
Reviewed-by: coleenp, iklam, mseledtsov
Contributed-by: yumin.qi@oracle.com

*** 102,115 ****
    public native void NMTFree(long mem);
    public native long NMTReserveMemory(long size);
    public native void NMTCommitMemory(long addr, long size);
    public native void NMTUncommitMemory(long addr, long size);
    public native void NMTReleaseMemory(long addr, long size);
-   public native void NMTOverflowHashBucket(long num);
    public native long NMTMallocWithPseudoStack(long size, int index);
    public native boolean NMTIsDetailSupported();
    public native boolean NMTChangeTrackingLevel();
  
    // Compiler
    public native void    deoptimizeAll();
    public        boolean isMethodCompiled(Executable method) {
      return isMethodCompiled(method, false /*not osr*/);
--- 102,115 ----
    public native void NMTFree(long mem);
    public native long NMTReserveMemory(long size);
    public native void NMTCommitMemory(long addr, long size);
    public native void NMTUncommitMemory(long addr, long size);
    public native void NMTReleaseMemory(long addr, long size);
    public native long NMTMallocWithPseudoStack(long size, int index);
    public native boolean NMTIsDetailSupported();
    public native boolean NMTChangeTrackingLevel();
+   public native int NMTGetHashSize();
  
    // Compiler
    public native void    deoptimizeAll();
    public        boolean isMethodCompiled(Executable method) {
      return isMethodCompiled(method, false /*not osr*/);
*** 206,211 ****
--- 206,220 ----
                         .map(f -> f.apply(name))
                         .filter(x -> x != null)
                         .findAny()
                         .orElse(null);
    }
+   public native int getOffsetForName0(String name);
+   public int getOffsetForName(String name) throws Exception {
+     int offset = getOffsetForName0(name);
+     if (offset == -1) {
+       throw new RuntimeException(name + " not found");
+     }
+     return offset;
+   }
+ 
  }