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src/share/vm/classfile/resolutionErrors.hpp@baf9f57c9b46 (annotated)

src/share/vm/classfile/resolutionErrors.hpp

Mon, 05 May 2014 19:53:00 -0400

author

coleenp

date

Mon, 05 May 2014 19:53:00 -0400

changeset 9966

baf9f57c9b46

parent 4037

da91efe96a93

child 10015

eb7ce841ccec

permissions

-rw-r--r--

8023697: failed class resolution reports different class name in detail message for the first and subsequent times
Summary: Cache detail message when we cache exception for constant pool resolution.
Reviewed-by: acorn, twisti, jrose

duke@435	1	/*
coleenp@9966	2	* Copyright (c) 2005, 2014, Oracle and/or its affiliates. All rights reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
trims@1907	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907	20	* or visit www.oracle.com if you need additional information or have any
trims@1907	21	* questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
stefank@2314	25	#ifndef SHARE_VM_CLASSFILE_RESOLUTIONERRORS_HPP
stefank@2314	26	#define SHARE_VM_CLASSFILE_RESOLUTIONERRORS_HPP
stefank@2314	27
coleenp@4037	28	#include "oops/constantPool.hpp"
stefank@2314	29	#include "utilities/hashtable.hpp"
stefank@2314	30
duke@435	31	class ResolutionErrorEntry;
duke@435	32
duke@435	33	// ResolutionError objects are used to record errors encountered during
duke@435	34	// constant pool resolution (JVMS 5.4.3).
duke@435	35
coleenp@4037	36	class ResolutionErrorTable : public Hashtable<ConstantPool*, mtClass> {
duke@435	37
duke@435	38	public:
duke@435	39	ResolutionErrorTable(int table_size);
duke@435	40
coleenp@9966	41	ResolutionErrorEntry* new_entry(int hash, ConstantPool* pool, int cp_index,
coleenp@9966	42	Symbol* error, Symbol* message);
coleenp@2497	43	void free_entry(ResolutionErrorEntry *entry);
duke@435	44
duke@435	45	ResolutionErrorEntry* bucket(int i) {
coleenp@4037	46	return (ResolutionErrorEntry*)Hashtable<ConstantPool*, mtClass>::bucket(i);
duke@435	47	}
duke@435	48
duke@435	49	ResolutionErrorEntry** bucket_addr(int i) {
coleenp@4037	50	return (ResolutionErrorEntry**)Hashtable<ConstantPool*, mtClass>::bucket_addr(i);
duke@435	51	}
duke@435	52
duke@435	53	void add_entry(int index, ResolutionErrorEntry* new_entry) {
coleenp@4037	54	Hashtable<ConstantPool*, mtClass>::add_entry(index,
coleenp@4037	55	(HashtableEntry<ConstantPool*, mtClass>*)new_entry);
duke@435	56	}
duke@435	57
duke@435	58	void add_entry(int index, unsigned int hash,
coleenp@9966	59	constantPoolHandle pool, int which, Symbol* error, Symbol* message);
duke@435	60
duke@435	61
duke@435	62	// find error given the constant pool and constant pool index
duke@435	63	ResolutionErrorEntry* find_entry(int index, unsigned int hash,
duke@435	64	constantPoolHandle pool, int cp_index);
duke@435	65
duke@435	66
duke@435	67	unsigned int compute_hash(constantPoolHandle pool, int cp_index) {
duke@435	68	return (unsigned int) pool->identity_hash() + cp_index;
duke@435	69	}
duke@435	70
duke@435	71	// purges unloaded entries from the table
coleenp@4037	72	void purge_resolution_errors();
duke@435	73
coleenp@4037	74	// RedefineClasses support - remove obsolete constant pool entry
coleenp@4037	75	void delete_entry(ConstantPool* c);
duke@435	76	};
duke@435	77
duke@435	78
coleenp@4037	79	class ResolutionErrorEntry : public HashtableEntry<ConstantPool*, mtClass> {
duke@435	80	private:
duke@435	81	int _cp_index;
coleenp@2497	82	Symbol* _error;
coleenp@9966	83	Symbol* _message;
duke@435	84
duke@435	85	public:
coleenp@9966	86	ConstantPool* pool() const { return literal(); }
duke@435	87
duke@435	88	int cp_index() const { return _cp_index; }
duke@435	89	void set_cp_index(int cp_index) { _cp_index = cp_index; }
duke@435	90
coleenp@2497	91	Symbol* error() const { return _error; }
coleenp@2497	92	void set_error(Symbol* e);
duke@435	93
coleenp@9966	94	Symbol* message() const { return _message; }
coleenp@9966	95	void set_message(Symbol* c);
coleenp@9966	96
duke@435	97	ResolutionErrorEntry* next() const {
coleenp@4037	98	return (ResolutionErrorEntry*)HashtableEntry<ConstantPool*, mtClass>::next();
duke@435	99	}
duke@435	100
duke@435	101	ResolutionErrorEntry** next_addr() {
coleenp@4037	102	return (ResolutionErrorEntry**)HashtableEntry<ConstantPool*, mtClass>::next_addr();
duke@435	103	}
duke@435	104	};
stefank@2314	105
stefank@2314	106	#endif // SHARE_VM_CLASSFILE_RESOLUTIONERRORS_HPP