src/share/vm/runtime/thread.hpp

*** 1995,2008 ****
  
    // Hide sweeper thread from external view.
    bool is_hidden_from_external_view() const { return true; }
  
    bool is_Code_cache_sweeper_thread() const { return true; }
!   // GC support
!   // Apply "f->do_oop" to all root oops in "this".
!   // Apply "cf->do_code_blob" (if !NULL) to all code blobs active in frames
    void oops_do(OopClosure* f, CLDClosure* cld_f, CodeBlobClosure* cf);
  };
  
  // A thread used for Compilation.
  class CompilerThread : public JavaThread {
    friend class VMStructs;
--- 1995,2008 ----
  
    // Hide sweeper thread from external view.
    bool is_hidden_from_external_view() const { return true; }
  
    bool is_Code_cache_sweeper_thread() const { return true; }
! 
!   // Prevent GC from unloading _scanned_nmethod
    void oops_do(OopClosure* f, CLDClosure* cld_f, CodeBlobClosure* cf);
+   void nmethods_do(CodeBlobClosure* cf);
  };
  
  // A thread used for Compilation.
  class CompilerThread : public JavaThread {
    friend class VMStructs;