Tue, 08 Feb 2011 09:11:37 -0800
7017673: Remove setting of the sun.jkernel.DownloadManager as a boot classloader hook
Reviewed-by: alanb, dcubed, coleenp
1 /*
2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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23 */
25 #include "precompiled.hpp"
26 #include "classfile/vmSymbols.hpp"
27 #include "memory/oopFactory.hpp"
28 #include "oops/oop.inline.hpp"
29 #include "runtime/handles.inline.hpp"
30 #include "utilities/xmlstream.hpp"
33 Symbol* vmSymbols::_symbols[vmSymbols::SID_LIMIT];
35 Symbol* vmSymbols::_type_signatures[T_VOID+1] = { NULL /*, NULL...*/ };
37 inline int compare_symbol(Symbol* a, Symbol* b) {
38 if (a == b) return 0;
39 // follow the natural address order:
40 return (address)a > (address)b ? +1 : -1;
41 }
43 static vmSymbols::SID vm_symbol_index[vmSymbols::SID_LIMIT];
44 extern "C" {
45 static int compare_vmsymbol_sid(const void* void_a, const void* void_b) {
46 Symbol* a = vmSymbols::symbol_at(*((vmSymbols::SID*) void_a));
47 Symbol* b = vmSymbols::symbol_at(*((vmSymbols::SID*) void_b));
48 return compare_symbol(a, b);
49 }
50 }
52 #ifndef PRODUCT
53 #define VM_SYMBOL_ENUM_NAME_BODY(name, string) #name "\0"
54 static const char* vm_symbol_enum_names =
55 VM_SYMBOLS_DO(VM_SYMBOL_ENUM_NAME_BODY, VM_ALIAS_IGNORE)
56 "\0";
57 static const char* vm_symbol_enum_name(vmSymbols::SID sid) {
58 const char* string = &vm_symbol_enum_names[0];
59 int skip = (int)sid - (int)vmSymbols::FIRST_SID;
60 for (; skip != 0; skip--) {
61 size_t skiplen = strlen(string);
62 if (skiplen == 0) return "<unknown>"; // overflow
63 string += skiplen+1;
64 }
65 return string;
66 }
67 #endif //PRODUCT
69 // Put all the VM symbol strings in one place.
70 // Makes for a more compact libjvm.
71 #define VM_SYMBOL_BODY(name, string) string "\0"
72 static const char* vm_symbol_bodies = VM_SYMBOLS_DO(VM_SYMBOL_BODY, VM_ALIAS_IGNORE);
74 void vmSymbols::initialize(TRAPS) {
75 assert((int)SID_LIMIT <= (1<<log2_SID_LIMIT), "must fit in this bitfield");
76 assert((int)SID_LIMIT*5 > (1<<log2_SID_LIMIT), "make the bitfield smaller, please");
77 assert(vmIntrinsics::FLAG_LIMIT <= (1 << vmIntrinsics::log2_FLAG_LIMIT), "must fit in this bitfield");
79 if (!UseSharedSpaces) {
80 const char* string = &vm_symbol_bodies[0];
81 for (int index = (int)FIRST_SID; index < (int)SID_LIMIT; index++) {
82 Symbol* sym = SymbolTable::new_symbol(string, CHECK);
83 _symbols[index] = sym;
84 string += strlen(string); // skip string body
85 string += 1; // skip trailing null
86 }
88 _type_signatures[T_BYTE] = byte_signature();
89 _type_signatures[T_CHAR] = char_signature();
90 _type_signatures[T_DOUBLE] = double_signature();
91 _type_signatures[T_FLOAT] = float_signature();
92 _type_signatures[T_INT] = int_signature();
93 _type_signatures[T_LONG] = long_signature();
94 _type_signatures[T_SHORT] = short_signature();
95 _type_signatures[T_BOOLEAN] = bool_signature();
96 _type_signatures[T_VOID] = void_signature();
97 // no single signatures for T_OBJECT or T_ARRAY
98 }
100 #ifdef ASSERT
101 // Check for duplicates:
102 for (int i1 = (int)FIRST_SID; i1 < (int)SID_LIMIT; i1++) {
103 Symbol* sym = symbol_at((SID)i1);
104 for (int i2 = (int)FIRST_SID; i2 < i1; i2++) {
105 if (symbol_at((SID)i2) == sym) {
106 tty->print("*** Duplicate VM symbol SIDs %s(%d) and %s(%d): \"",
107 vm_symbol_enum_name((SID)i2), i2,
108 vm_symbol_enum_name((SID)i1), i1);
109 sym->print_symbol_on(tty);
110 tty->print_cr("\"");
111 }
112 }
113 }
114 #endif //ASSERT
116 // Create an index for find_id:
117 {
118 for (int index = (int)FIRST_SID; index < (int)SID_LIMIT; index++) {
119 vm_symbol_index[index] = (SID)index;
120 }
121 int num_sids = SID_LIMIT-FIRST_SID;
122 qsort(&vm_symbol_index[FIRST_SID], num_sids, sizeof(vm_symbol_index[0]),
123 compare_vmsymbol_sid);
124 }
126 #ifdef ASSERT
127 {
128 // Spot-check correspondence between strings, symbols, and enums:
129 assert(_symbols[NO_SID] == NULL, "must be");
130 const char* str = "java/lang/Object";
131 TempNewSymbol jlo = SymbolTable::new_symbol(str, CHECK);
132 assert(strncmp(str, (char*)jlo->base(), jlo->utf8_length()) == 0, "");
133 assert(jlo == java_lang_Object(), "");
134 SID sid = VM_SYMBOL_ENUM_NAME(java_lang_Object);
135 assert(find_sid(jlo) == sid, "");
136 assert(symbol_at(sid) == jlo, "");
138 // Make sure find_sid produces the right answer in each case.
139 for (int index = (int)FIRST_SID; index < (int)SID_LIMIT; index++) {
140 Symbol* sym = symbol_at((SID)index);
141 sid = find_sid(sym);
142 assert(sid == (SID)index, "symbol index works");
143 // Note: If there are duplicates, this assert will fail.
144 // A "Duplicate VM symbol" message will have already been printed.
145 }
147 // The string "format" happens (at the moment) not to be a vmSymbol,
148 // though it is a method name in java.lang.String.
149 str = "format";
150 TempNewSymbol fmt = SymbolTable::new_symbol(str, CHECK);
151 sid = find_sid(fmt);
152 assert(sid == NO_SID, "symbol index works (negative test)");
153 }
154 #endif
155 }
158 #ifndef PRODUCT
159 const char* vmSymbols::name_for(vmSymbols::SID sid) {
160 if (sid == NO_SID)
161 return "NO_SID";
162 const char* string = &vm_symbol_bodies[0];
163 for (int index = (int)FIRST_SID; index < (int)SID_LIMIT; index++) {
164 if (index == (int)sid)
165 return string;
166 string += strlen(string); // skip string body
167 string += 1; // skip trailing null
168 }
169 return "BAD_SID";
170 }
171 #endif
175 void vmSymbols::symbols_do(SymbolClosure* f) {
176 for (int index = (int)FIRST_SID; index < (int)SID_LIMIT; index++) {
177 f->do_symbol(&_symbols[index]);
178 }
179 for (int i = 0; i < T_VOID+1; i++) {
180 f->do_symbol(&_type_signatures[i]);
181 }
182 }
184 void vmSymbols::serialize(SerializeOopClosure* soc) {
185 soc->do_region((u_char*)&_symbols[FIRST_SID],
186 (SID_LIMIT - FIRST_SID) * sizeof(_symbols[0]));
187 soc->do_region((u_char*)_type_signatures, sizeof(_type_signatures));
188 }
191 BasicType vmSymbols::signature_type(Symbol* s) {
192 assert(s != NULL, "checking");
193 for (int i = T_BOOLEAN; i < T_VOID+1; i++) {
194 if (s == _type_signatures[i]) {
195 return (BasicType)i;
196 }
197 }
198 return T_OBJECT;
199 }
202 static int mid_hint = (int)vmSymbols::FIRST_SID+1;
204 #ifndef PRODUCT
205 static int find_sid_calls, find_sid_probes;
206 // (Typical counts are calls=7000 and probes=17000.)
207 #endif
209 vmSymbols::SID vmSymbols::find_sid(Symbol* symbol) {
210 // Handle the majority of misses by a bounds check.
211 // Then, use a binary search over the index.
212 // Expected trip count is less than log2_SID_LIMIT, about eight.
213 // This is slow but acceptable, given that calls are not
214 // dynamically common. (methodOop::intrinsic_id has a cache.)
215 NOT_PRODUCT(find_sid_calls++);
216 int min = (int)FIRST_SID, max = (int)SID_LIMIT - 1;
217 SID sid = NO_SID, sid1;
218 int cmp1;
219 sid1 = vm_symbol_index[min];
220 cmp1 = compare_symbol(symbol, symbol_at(sid1));
221 if (cmp1 <= 0) { // before the first
222 if (cmp1 == 0) sid = sid1;
223 } else {
224 sid1 = vm_symbol_index[max];
225 cmp1 = compare_symbol(symbol, symbol_at(sid1));
226 if (cmp1 >= 0) { // after the last
227 if (cmp1 == 0) sid = sid1;
228 } else {
229 // After checking the extremes, do a binary search.
230 ++min; --max; // endpoints are done
231 int mid = mid_hint; // start at previous success
232 while (max >= min) {
233 assert(mid >= min && mid <= max, "");
234 NOT_PRODUCT(find_sid_probes++);
235 sid1 = vm_symbol_index[mid];
236 cmp1 = compare_symbol(symbol, symbol_at(sid1));
237 if (cmp1 == 0) {
238 mid_hint = mid;
239 sid = sid1;
240 break;
241 }
242 if (cmp1 < 0)
243 max = mid - 1; // symbol < symbol_at(sid)
244 else
245 min = mid + 1;
247 // Pick a new probe point:
248 mid = (max + min) / 2;
249 }
250 }
251 }
253 #ifdef ASSERT
254 // Perform the exhaustive self-check the first 1000 calls,
255 // and every 100 calls thereafter.
256 static int find_sid_check_count = -2000;
257 if ((uint)++find_sid_check_count > (uint)100) {
258 if (find_sid_check_count > 0) find_sid_check_count = 0;
260 // Make sure this is the right answer, using linear search.
261 // (We have already proven that there are no duplicates in the list.)
262 SID sid2 = NO_SID;
263 for (int index = (int)FIRST_SID; index < (int)SID_LIMIT; index++) {
264 Symbol* sym2 = symbol_at((SID)index);
265 if (sym2 == symbol) {
266 sid2 = (SID)index;
267 break;
268 }
269 }
270 // Unless it's a duplicate, assert that the sids are the same.
271 if (_symbols[sid] != _symbols[sid2]) {
272 assert(sid == sid2, "binary same as linear search");
273 }
274 }
275 #endif //ASSERT
277 return sid;
278 }
280 static vmIntrinsics::ID wrapper_intrinsic(BasicType type, bool unboxing) {
281 #define TYPE2(type, unboxing) ((int)(type)*2 + ((unboxing) ? 1 : 0))
282 switch (TYPE2(type, unboxing)) {
283 #define BASIC_TYPE_CASE(type, box, unbox) \
284 case TYPE2(type, false): return vmIntrinsics::box; \
285 case TYPE2(type, true): return vmIntrinsics::unbox
286 BASIC_TYPE_CASE(T_BOOLEAN, _Boolean_valueOf, _booleanValue);
287 BASIC_TYPE_CASE(T_BYTE, _Byte_valueOf, _byteValue);
288 BASIC_TYPE_CASE(T_CHAR, _Character_valueOf, _charValue);
289 BASIC_TYPE_CASE(T_SHORT, _Short_valueOf, _shortValue);
290 BASIC_TYPE_CASE(T_INT, _Integer_valueOf, _intValue);
291 BASIC_TYPE_CASE(T_LONG, _Long_valueOf, _longValue);
292 BASIC_TYPE_CASE(T_FLOAT, _Float_valueOf, _floatValue);
293 BASIC_TYPE_CASE(T_DOUBLE, _Double_valueOf, _doubleValue);
294 #undef BASIC_TYPE_CASE
295 }
296 #undef TYPE2
297 return vmIntrinsics::_none;
298 }
300 vmIntrinsics::ID vmIntrinsics::for_boxing(BasicType type) {
301 return wrapper_intrinsic(type, false);
302 }
303 vmIntrinsics::ID vmIntrinsics::for_unboxing(BasicType type) {
304 return wrapper_intrinsic(type, true);
305 }
307 vmIntrinsics::ID vmIntrinsics::for_raw_conversion(BasicType src, BasicType dest) {
308 #define SRC_DEST(s,d) (((int)(s) << 4) + (int)(d))
309 switch (SRC_DEST(src, dest)) {
310 case SRC_DEST(T_INT, T_FLOAT): return vmIntrinsics::_intBitsToFloat;
311 case SRC_DEST(T_FLOAT, T_INT): return vmIntrinsics::_floatToRawIntBits;
313 case SRC_DEST(T_LONG, T_DOUBLE): return vmIntrinsics::_longBitsToDouble;
314 case SRC_DEST(T_DOUBLE, T_LONG): return vmIntrinsics::_doubleToRawLongBits;
315 }
316 #undef SRC_DEST
318 return vmIntrinsics::_none;
319 }
321 methodOop vmIntrinsics::method_for(vmIntrinsics::ID id) {
322 if (id == _none) return NULL;
323 Symbol* cname = vmSymbols::symbol_at(class_for(id));
324 Symbol* mname = vmSymbols::symbol_at(name_for(id));
325 Symbol* msig = vmSymbols::symbol_at(signature_for(id));
326 if (cname == NULL || mname == NULL || msig == NULL) return NULL;
327 klassOop k = SystemDictionary::find_well_known_klass(cname);
328 if (k == NULL) return NULL;
329 return instanceKlass::cast(k)->find_method(mname, msig);
330 }
333 #define VM_INTRINSIC_INITIALIZE(id, klass, name, sig, flags) #id "\0"
334 static const char* vm_intrinsic_name_bodies =
335 VM_INTRINSICS_DO(VM_INTRINSIC_INITIALIZE,
336 VM_SYMBOL_IGNORE, VM_SYMBOL_IGNORE, VM_SYMBOL_IGNORE, VM_ALIAS_IGNORE);
338 static const char* vm_intrinsic_name_table[vmIntrinsics::ID_LIMIT];
340 const char* vmIntrinsics::name_at(vmIntrinsics::ID id) {
341 const char** nt = &vm_intrinsic_name_table[0];
342 if (nt[_none] == NULL) {
343 char* string = (char*) &vm_intrinsic_name_bodies[0];
344 for (int index = FIRST_ID; index < ID_LIMIT; index++) {
345 nt[index] = string;
346 string += strlen(string); // skip string body
347 string += 1; // skip trailing null
348 }
349 assert(!strcmp(nt[_hashCode], "_hashCode"), "lined up");
350 nt[_none] = "_none";
351 }
352 if ((uint)id < (uint)ID_LIMIT)
353 return vm_intrinsic_name_table[(uint)id];
354 else
355 return "(unknown intrinsic)";
356 }
358 // These are flag-matching functions:
359 inline bool match_F_R(jshort flags) {
360 const int req = 0;
361 const int neg = JVM_ACC_STATIC | JVM_ACC_SYNCHRONIZED;
362 return (flags & (req | neg)) == req;
363 }
364 inline bool match_F_Y(jshort flags) {
365 const int req = JVM_ACC_SYNCHRONIZED;
366 const int neg = JVM_ACC_STATIC;
367 return (flags & (req | neg)) == req;
368 }
369 inline bool match_F_RN(jshort flags) {
370 const int req = JVM_ACC_NATIVE;
371 const int neg = JVM_ACC_STATIC | JVM_ACC_SYNCHRONIZED;
372 return (flags & (req | neg)) == req;
373 }
374 inline bool match_F_S(jshort flags) {
375 const int req = JVM_ACC_STATIC;
376 const int neg = JVM_ACC_SYNCHRONIZED;
377 return (flags & (req | neg)) == req;
378 }
379 inline bool match_F_SN(jshort flags) {
380 const int req = JVM_ACC_STATIC | JVM_ACC_NATIVE;
381 const int neg = JVM_ACC_SYNCHRONIZED;
382 return (flags & (req | neg)) == req;
383 }
384 inline bool match_F_RNY(jshort flags) {
385 const int req = JVM_ACC_NATIVE | JVM_ACC_SYNCHRONIZED;
386 const int neg = JVM_ACC_STATIC;
387 return (flags & (req | neg)) == req;
388 }
390 // These are for forming case labels:
391 #define ID3(x, y, z) (( jlong)(z) + \
392 ((jlong)(y) << vmSymbols::log2_SID_LIMIT) + \
393 ((jlong)(x) << (2*vmSymbols::log2_SID_LIMIT)) )
394 #define SID_ENUM(n) vmSymbols::VM_SYMBOL_ENUM_NAME(n)
396 vmIntrinsics::ID vmIntrinsics::find_id_impl(vmSymbols::SID holder,
397 vmSymbols::SID name,
398 vmSymbols::SID sig,
399 jshort flags) {
400 assert((int)vmSymbols::SID_LIMIT <= (1<<vmSymbols::log2_SID_LIMIT), "must fit");
402 // Let the C compiler build the decision tree.
404 #define VM_INTRINSIC_CASE(id, klass, name, sig, fcode) \
405 case ID3(SID_ENUM(klass), SID_ENUM(name), SID_ENUM(sig)): \
406 if (!match_##fcode(flags)) break; \
407 return id;
409 switch (ID3(holder, name, sig)) {
410 VM_INTRINSICS_DO(VM_INTRINSIC_CASE,
411 VM_SYMBOL_IGNORE, VM_SYMBOL_IGNORE, VM_SYMBOL_IGNORE, VM_ALIAS_IGNORE);
412 }
413 return vmIntrinsics::_none;
415 #undef VM_INTRINSIC_CASE
416 }
419 const char* vmIntrinsics::short_name_as_C_string(vmIntrinsics::ID id, char* buf, int buflen) {
420 const char* str = name_at(id);
421 #ifndef PRODUCT
422 const char* kname = vmSymbols::name_for(class_for(id));
423 const char* mname = vmSymbols::name_for(name_for(id));
424 const char* sname = vmSymbols::name_for(signature_for(id));
425 const char* fname = "";
426 switch (flags_for(id)) {
427 case F_Y: fname = "synchronized "; break;
428 case F_RN: fname = "native "; break;
429 case F_SN: fname = "native static "; break;
430 case F_S: fname = "static "; break;
431 case F_RNY:fname = "native synchronized "; break;
432 }
433 const char* kptr = strrchr(kname, '/');
434 if (kptr != NULL) kname = kptr + 1;
435 int len = jio_snprintf(buf, buflen, "%s: %s%s.%s%s",
436 str, fname, kname, mname, sname);
437 if (len < buflen)
438 str = buf;
439 #endif //PRODUCT
440 return str;
441 }
444 // These are to get information about intrinsics.
446 #define ID4(x, y, z, f) ((ID3(x, y, z) << vmIntrinsics::log2_FLAG_LIMIT) | (jlong) (f))
448 static const jlong intrinsic_info_array[vmIntrinsics::ID_LIMIT+1] = {
449 #define VM_INTRINSIC_INFO(ignore_id, klass, name, sig, fcode) \
450 ID4(SID_ENUM(klass), SID_ENUM(name), SID_ENUM(sig), vmIntrinsics::fcode),
452 0, VM_INTRINSICS_DO(VM_INTRINSIC_INFO,
453 VM_SYMBOL_IGNORE, VM_SYMBOL_IGNORE, VM_SYMBOL_IGNORE, VM_ALIAS_IGNORE)
454 0
455 #undef VM_INTRINSIC_INFO
456 };
458 inline jlong intrinsic_info(vmIntrinsics::ID id) {
459 return intrinsic_info_array[vmIntrinsics::ID_from((int)id)];
460 }
462 vmSymbols::SID vmIntrinsics::class_for(vmIntrinsics::ID id) {
463 jlong info = intrinsic_info(id);
464 int shift = 2*vmSymbols::log2_SID_LIMIT + log2_FLAG_LIMIT, mask = right_n_bits(vmSymbols::log2_SID_LIMIT);
465 assert(((ID4(1021,1022,1023,15) >> shift) & mask) == 1021, "");
466 return vmSymbols::SID( (info >> shift) & mask );
467 }
469 vmSymbols::SID vmIntrinsics::name_for(vmIntrinsics::ID id) {
470 jlong info = intrinsic_info(id);
471 int shift = vmSymbols::log2_SID_LIMIT + log2_FLAG_LIMIT, mask = right_n_bits(vmSymbols::log2_SID_LIMIT);
472 assert(((ID4(1021,1022,1023,15) >> shift) & mask) == 1022, "");
473 return vmSymbols::SID( (info >> shift) & mask );
474 }
476 vmSymbols::SID vmIntrinsics::signature_for(vmIntrinsics::ID id) {
477 jlong info = intrinsic_info(id);
478 int shift = log2_FLAG_LIMIT, mask = right_n_bits(vmSymbols::log2_SID_LIMIT);
479 assert(((ID4(1021,1022,1023,15) >> shift) & mask) == 1023, "");
480 return vmSymbols::SID( (info >> shift) & mask );
481 }
483 vmIntrinsics::Flags vmIntrinsics::flags_for(vmIntrinsics::ID id) {
484 jlong info = intrinsic_info(id);
485 int shift = 0, mask = right_n_bits(log2_FLAG_LIMIT);
486 assert(((ID4(1021,1022,1023,15) >> shift) & mask) == 15, "");
487 return Flags( (info >> shift) & mask );
488 }
491 #ifndef PRODUCT
492 // verify_method performs an extra check on a matched intrinsic method
494 static bool match_method(methodOop m, Symbol* n, Symbol* s) {
495 return (m->name() == n &&
496 m->signature() == s);
497 }
499 static vmIntrinsics::ID match_method_with_klass(methodOop m, Symbol* mk) {
500 #define VM_INTRINSIC_MATCH(id, klassname, namepart, sigpart, flags) \
501 { Symbol* k = vmSymbols::klassname(); \
502 if (mk == k) { \
503 Symbol* n = vmSymbols::namepart(); \
504 Symbol* s = vmSymbols::sigpart(); \
505 if (match_method(m, n, s)) \
506 return vmIntrinsics::id; \
507 } }
508 VM_INTRINSICS_DO(VM_INTRINSIC_MATCH,
509 VM_SYMBOL_IGNORE, VM_SYMBOL_IGNORE, VM_SYMBOL_IGNORE, VM_ALIAS_IGNORE);
510 return vmIntrinsics::_none;
511 #undef VM_INTRINSIC_MATCH
512 }
514 void vmIntrinsics::verify_method(ID actual_id, methodOop m) {
515 Symbol* mk = Klass::cast(m->method_holder())->name();
516 ID declared_id = match_method_with_klass(m, mk);
518 if (declared_id == actual_id) return; // success
520 if (declared_id == _none && actual_id != _none && mk == vmSymbols::java_lang_StrictMath()) {
521 // Here are a few special cases in StrictMath not declared in vmSymbols.hpp.
522 switch (actual_id) {
523 case _min:
524 case _max:
525 case _dsqrt:
526 declared_id = match_method_with_klass(m, vmSymbols::java_lang_Math());
527 if (declared_id == actual_id) return; // acceptable alias
528 break;
529 }
530 }
532 const char* declared_name = name_at(declared_id);
533 const char* actual_name = name_at(actual_id);
534 methodHandle mh = m;
535 m = NULL;
536 ttyLocker ttyl;
537 if (xtty != NULL) {
538 xtty->begin_elem("intrinsic_misdeclared actual='%s' declared='%s'",
539 actual_name, declared_name);
540 xtty->method(mh);
541 xtty->end_elem("");
542 }
543 if (PrintMiscellaneous && (WizardMode || Verbose)) {
544 tty->print_cr("*** misidentified method; %s(%d) should be %s(%d):",
545 declared_name, declared_id, actual_name, actual_id);
546 mh()->print_short_name(tty);
547 tty->cr();
548 }
549 }
550 #endif //PRODUCT