src/share/vm/prims/jvmtiExport.cpp

*** 585,594 ****
--- 585,595 ----
    JvmtiEnv *           _curr_env;
    JvmtiCachedClassFileData ** _cached_class_file_ptr;
    JvmtiThreadState *   _state;
    KlassHandle *        _h_class_being_redefined;
    JvmtiClassLoadKind   _load_kind;
+   bool                 _has_been_modified;
  
   public:
    inline JvmtiClassFileLoadHookPoster(Symbol* h_name, Handle class_loader,
                                        Handle h_protection_domain,
                                        unsigned char **data_ptr, unsigned char **end_ptr,
*** 601,610 ****
--- 602,612 ----
      _thread = JavaThread::current();
      _curr_len = *end_ptr - *data_ptr;
      _curr_data = *data_ptr;
      _curr_env = NULL;
      _cached_class_file_ptr = cache_ptr;
+     _has_been_modified = false;
  
      _state = _thread->jvmti_thread_state();
      if (_state != NULL) {
        _h_class_being_redefined = _state->get_class_being_redefined();
        _load_kind = _state->get_class_load_kind();
*** 639,648 ****
--- 641,652 ----
    void post() {
      post_all_envs();
      copy_modified_data();
    }
  
+   bool has_been_modified() { return _has_been_modified; }
+ 
   private:
    void post_all_envs() {
      if (_load_kind != jvmti_class_load_kind_retransform) {
        // for class load and redefine,
        // call the non-retransformable agents
*** 685,694 ****
--- 689,699 ----
                    _curr_len, _curr_data,
                    &new_len, &new_data);
      }
      if (new_data != NULL) {
        // this agent has modified class data.
+       _has_been_modified = true;
        if (caching_needed && *_cached_class_file_ptr == NULL) {
          // data has been changed by the new retransformable agent
          // and it hasn't already been cached, cache it
          JvmtiCachedClassFileData *p;
          p = (JvmtiCachedClassFileData *)os::malloc(
*** 732,756 ****
  };
  
  bool JvmtiExport::_should_post_class_file_load_hook = false;
  
  // this entry is for class file load hook on class load, redefine and retransform
! void JvmtiExport::post_class_file_load_hook(Symbol* h_name,
                                              Handle class_loader,
                                              Handle h_protection_domain,
                                              unsigned char **data_ptr,
                                              unsigned char **end_ptr,
                                              JvmtiCachedClassFileData **cache_ptr) {
    if (JvmtiEnv::get_phase() < JVMTI_PHASE_PRIMORDIAL) {
!     return;
    }
  
    JvmtiClassFileLoadHookPoster poster(h_name, class_loader,
                                        h_protection_domain,
                                        data_ptr, end_ptr,
                                        cache_ptr);
    poster.post();
  }
  
  void JvmtiExport::report_unsupported(bool on) {
    // If any JVMTI service is turned on, we need to exit before native code
    // tries to access nonexistant services.
--- 737,762 ----
  };
  
  bool JvmtiExport::_should_post_class_file_load_hook = false;
  
  // this entry is for class file load hook on class load, redefine and retransform
! bool JvmtiExport::post_class_file_load_hook(Symbol* h_name,
                                              Handle class_loader,
                                              Handle h_protection_domain,
                                              unsigned char **data_ptr,
                                              unsigned char **end_ptr,
                                              JvmtiCachedClassFileData **cache_ptr) {
    if (JvmtiEnv::get_phase() < JVMTI_PHASE_PRIMORDIAL) {
!     return false;
    }
  
    JvmtiClassFileLoadHookPoster poster(h_name, class_loader,
                                        h_protection_domain,
                                        data_ptr, end_ptr,
                                        cache_ptr);
    poster.post();
+   return poster.has_been_modified();
  }
  
  void JvmtiExport::report_unsupported(bool on) {
    // If any JVMTI service is turned on, we need to exit before native code
    // tries to access nonexistant services.