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hotspot/src/share/vm/runtime/thread.hpp

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rev 7151 : 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: dsimms

*** 1,7 **** /* ! * Copyright (c) 1997, 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. --- 1,7 ---- /* ! * Copyright (c) 1997, 2015, 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.
*** 924,933 **** --- 924,936 ---- volatile int _is_method_handle_return; // true (== 1) if the current exception PC is a MethodHandle call site. // support for JNI critical regions jint _jni_active_critical; // count of entries into JNI critical region + // Checked JNI: function name requires exception check + char* _pending_jni_exception_check_fn; + // For deadlock detection. int _depth_first_number; // JVMTI PopFrame support // This is set to popframe_pending to signal that top Java frame should be popped immediately
*** 1406,1415 **** --- 1409,1424 ---- "this must be current thread"); _jni_active_critical--; assert(_jni_active_critical >= 0, "JNI critical nesting problem?"); } + // Checked JNI, is the programmer required to check for exceptions, specify which function name + bool is_pending_jni_exception_check() const { return _pending_jni_exception_check_fn != NULL; } + void clear_pending_jni_exception_check() { _pending_jni_exception_check_fn = NULL; } + const char* get_pending_jni_exception_check() const { return _pending_jni_exception_check_fn; } + void set_pending_jni_exception_check(const char* fn_name) { _pending_jni_exception_check_fn = (char*) fn_name; } + // For deadlock detection int depth_first_number() { return _depth_first_number; } void set_depth_first_number(int dfn) { _depth_first_number = dfn; } private:
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