src/share/vm/runtime/jniHandles.hpp

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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

*** 1,7 **** /* ! * Copyright (c) 1998, 2012, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. --- 1,7 ---- /* ! * Copyright (c) 1998, 2014, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation.
*** 110,119 **** --- 110,122 ---- JNIHandleBlock* _last; // Last block in use JNIHandleBlock* _pop_frame_link; // Block to restore on PopLocalFrame call oop* _free_list; // Handle free list int _allocate_before_rebuild; // Number of blocks to allocate before rebuilding free list + // Check JNI, "planned capacity" for current frame (or push/ensure) + size_t _planned_capacity; + #ifndef PRODUCT JNIHandleBlock* _block_list_link; // Link for list below static JNIHandleBlock* _block_list; // List of all allocated blocks (for debugging only) #endif
*** 150,159 **** --- 153,167 ---- // Traversal of regular handles void oops_do(OopClosure* f); // Traversal of weak handles. Unreachable oops are cleared. void weak_oops_do(BoolObjectClosure* is_alive, OopClosure* f); + // Checked JNI support + void set_planned_capacity(size_t planned_capacity) { _planned_capacity = planned_capacity; } + const size_t get_planned_capacity() { return _planned_capacity; } + const size_t get_number_of_live_handles(); + // Debugging bool chain_contains(jobject handle) const; // Does this block or following blocks contain handle bool contains(jobject handle) const; // Does this block contain handle int length() const; // Length of chain starting with this block long memory_usage() const;