src/share/vm/runtime/jniHandles.cpp

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rev 6562 : 8043224: -Xcheck:jni improvements to exception checking and excessive local refs
Summary: Warning when not checking exceptions from function that require so, also when local refs expand beyond capacity.
Reviewed-by: zgu, coleenp, hseigel

*** 296,305 **** --- 296,306 ---- } } block->_top = 0; block->_next = NULL; block->_pop_frame_link = NULL; + block->_planned_capacity = block_size_in_oops; // _last, _free_list & _allocate_before_rebuild initialized in allocate_handle debug_only(block->_last = NULL); debug_only(block->_free_list = NULL); debug_only(block->_allocate_before_rebuild = -1); return block;
*** 529,538 **** --- 530,545 ---- result++; } return result; } + const size_t JNIHandleBlock::get_number_of_live_handles() { + CountHandleClosure counter; + oops_do(&counter); + return counter.count(); + } + // This method is not thread-safe, i.e., must be called while holding a lock on the // structure. long JNIHandleBlock::memory_usage() const { return length() * sizeof(JNIHandleBlock); }