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test/runtime/7116786/Test7116786.java@c77d5db18942
test/runtime/7116786/Test7116786.java
Fri, 22 Aug 2014 14:11:46 -0700
- author
- hseigel
- date
- Fri, 22 Aug 2014 14:11:46 -0700
- changeset 6872
- c77d5db18942
- parent 4838
- aa758f0c5b1c
- child 6876
- 710a3c8b516e
- permissions
- -rw-r--r--
8046233: VerifyError on backward branch
Summary: Remove check that causes the VerifyError
Reviewed-by: dholmes, coleenp, acorn
1 /*
2 * Copyright (c) 2012, 2014, 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.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
25 /*
26 * @test Test7116786
27 * @summary verify that VerifyError messages are as expected
28 * @library testcases.jar
29 * @run main/othervm -Xverify:all Test7116786
30 */
33 /**
34 * This class contains information regarding when a VerifyError is thrown
35 * in the verifier. Most of the data is informational-only, and can be
36 * used to track down where and why VerifyErrors are thrown. As such it
37 * is possible the information may go out-of-date.
38 *
39 * The only fields used for the purpose of testing is the 'caseName' and
40 * the 'message'. The 'caseName' corresponds to a classfile which exhibits
41 * the VerifyError, and the 'message' is a regular expression which we expect
42 * to match the verify error message. If the 'message' doesn't match what
43 * we expect, it warrents investigation to see if we are still triggering
44 * the VerifyError that we expect. It could simply just be that the message
45 * changed, which is fine.
46 *
47 * Some cases are not testable, either because the code is probably unreachable
48 * or the test classfile would be too onerous to create. These cases are
49 * marked with 'testable' == false, and the test runner will skip them.
50 */
51 class Case {
52 private String caseName; // Name of the case
53 private String file; // Source file where VerifyError is thrown
54 private String location; // enclosing function or switch case
55 private String description; // What causes this VerifyError
56 private String message; // The VerifyError message used.
58 private boolean testable; // Whether this case is testable or not.
60 public Case(String caseName, String file, boolean testable,
61 String location, String description, String message) {
62 this.caseName = caseName;
63 this.file = file;
64 this.testable = testable;
65 this.location = location;
66 this.description = description;
67 this.message = message;
68 }
70 String getCaseName() { return this.caseName; }
71 String getFile() { return this.file; }
72 String getLocation() { return this.location; }
73 String getDescription() { return this.description; }
74 String getMessage() { return this.message; }
76 boolean isTestable() { return this.testable; }
77 }
79 /**
80 * These are the locations in the source code where VerifyErrors are thrown
81 * as of today, 2012/07/18. These may change as the verification code is
82 * modified, which is ok. This test is trying to provide coverage for all
83 * VerifyErrors (just to make sure there are no crashes) and it's probably
84 * not necessary to update it every time the VM changes.
85 */
86 class VerifyErrorCases {
87 public static final Case[] cases = {
89 new Case("case00", "stackMapFrame.cpp", true, "pop_stack_ex",
90 "stack underflow",
91 "Operand stack underflow"),
93 new Case("case01", "stackMapFrame.cpp", true, "pop_stack_ex",
94 "stack pop not assignable to expected",
95 "Bad type on operand stack"),
97 new Case("case02", "stackMapFrame.cpp", true, "get_local",
98 "local index out-of-bounds",
99 "Local variable table overflow"),
101 new Case("case03", "stackMapFrame.cpp", true, "get_local",
102 "local not assignable to expected",
103 "Bad local variable type"),
105 new Case("case04", "stackMapFrame.cpp", true, "get_local_2",
106 "local index out-of-bounds [type2]",
107 "get long/double overflows locals"),
109 new Case("case05", "stackMapFrame.cpp", true, "get_local_2",
110 "local not assignabled to expected [type2]",
111 "Bad local variable type"),
113 /* Unreachable: Can't split long/double on stack */
114 new Case("case06", "stackMapFrame.cpp", false, "get_local_2",
115 "local second-word not assignabled to expected",
116 "Bad local variable type"),
118 new Case("case07", "stackMapFrame.cpp", true, "set_local",
119 "local index out-of-bounds",
120 "Local variable table overflow"),
122 new Case("case08", "stackMapFrame.cpp", true, "set_local_2",
123 "local index out-of-bounds [type2]",
124 "Local variable table overflow"),
126 new Case("case09", "stackMapFrame.hpp", true, "push_stack",
127 "stack overflow",
128 "Operand stack overflow"),
130 new Case("case10", "stackMapFrame.hpp", true, "push_stack_2",
131 "stack overflow [type2]",
132 "Operand stack overflow"),
134 new Case("case11", "stackMapFrame.hpp", true, "pop_stack",
135 "stack underflow",
136 "Operand stack underflow"),
138 new Case("case12", "stackMapTable.cpp", true, "StackMapTable ctor",
139 "stackmap offset beyond code size",
140 "StackMapTable error: bad offset"),
142 new Case("case13", "stackMapTable.cpp", true, "match_stackmap",
143 "no stackmap frame at expected location",
144 "Expecting a stackmap frame at branch target "),
146 new Case("case14", "stackMapTable.cpp", true, "check_jump_target",
147 "no stackmap frame at jump location or bad jump",
148 "Inconsistent stackmap frames at branch target "),
150 /* Backward jump with uninit is allowed starting with JDK 8 */
151 new Case("case15", "stackMapTable.cpp", false, "check_new_object",
152 "backward jump with uninit",
153 "Uninitialized object exists on backward branch "),
155 /* Unreachable: wide instructions verified during bytecode analysis */
156 new Case("case16", "verifier.cpp", false, "loop header",
157 "bad op in wide instruction",
158 "Bad wide instruction"),
160 new Case("case17", "verifier.cpp", true, "case iaload",
161 "TOS not X array",
162 "Bad type on operand stack in iaload"),
164 new Case("case18", "verifier.cpp", true, "case baload",
165 "TOS not X array",
166 "Bad type on operand stack in baload"),
168 new Case("case19", "verifier.cpp", true, "case caload",
169 "TOS not X array",
170 "Bad type on operand stack in caload"),
172 new Case("case20", "verifier.cpp", true, "case saload",
173 "TOS not X array",
174 "Bad type on operand stack in saload"),
176 new Case("case21", "verifier.cpp", true, "case laload",
177 "TOS not X array",
178 "Bad type on operand stack in laload"),
180 new Case("case22", "verifier.cpp", true, "case faload",
181 "TOS not X array",
182 "Bad type on operand stack in faload"),
184 new Case("case23", "verifier.cpp", true, "case daload",
185 "TOS not X array",
186 "Bad type on operand stack in daload"),
188 new Case("case24", "verifier.cpp", true, "case aaload",
189 "TOS not X array",
190 "Bad type on operand stack in aaload"),
192 new Case("case25", "verifier.cpp", true, "case iastore",
193 "TOS not int array",
194 "Bad type on operand stack in iastore"),
196 new Case("case26", "verifier.cpp", true, "case bastore",
197 "TOS not byte array",
198 "Bad type on operand stack in bastore"),
200 new Case("case27", "verifier.cpp", true, "case castore",
201 "TOS not char array",
202 "Bad type on operand stack in castore"),
204 new Case("case28", "verifier.cpp", true, "case sastore",
205 "TOS not short array",
206 "Bad type on operand stack in sastore"),
208 new Case("case29", "verifier.cpp", true, "case lastore",
209 "TOS not long array",
210 "Bad type on operand stack in lastore"),
212 new Case("case30", "verifier.cpp", true, "case fastore",
213 "TOS not float array",
214 "Bad type on operand stack in fastore"),
216 new Case("case31", "verifier.cpp", true, "case dastore",
217 "TOS not double array",
218 "Bad type on operand stack in dastore"),
220 new Case("case32", "verifier.cpp", true, "case aastore",
221 "TOS not object array",
222 "Bad type on operand stack in aastore"),
224 /* Unreachable: In order to hit this case, we would need a
225 * category2_1st at TOS which is not possible. */
226 new Case("case33", "verifier.cpp", false, "case pop2",
227 "TOS is category2_1st (would split)",
228 "Bad type on operand stack in pop2"),
230 /* Unreachable: In order to hit this case, we would need a
231 * category2_1st at stack depth 2 with category_1 on TOS which is not
232 * possible. */
233 new Case("case34", "verifier.cpp", false, "case dup_x2",
234 "TOS-1 is category2_1st (would split)",
235 "Bad type on operand stack in dup_x2"),
237 /* Unreachable: In order to hit this case, we would need a
238 * category2_1st at TOS which is not possible. */
239 new Case("case35", "verifier.cpp", false, "case dup2",
240 "TOS-1 is category2_1st (would split)",
241 "Bad type on operand stack in dup2"),
243 /* Unreachable: In order to hit this case, we would need a
244 * category2_1st at TOS which is not possible. */
245 new Case("case36", "verifier.cpp", false, "case dup2_x1",
246 "TOS-1 is category2_1st (would split)",
247 "Bad type on operand stack in dup2_x1"),
249 /* Unreachable: In order to hit this case, we would need a
250 * category2_1st at TOS which is not possible. */
251 new Case("case37", "verifier.cpp", false, "case dup2_x2",
252 "TOS-1 is category2_1st (would split)",
253 "Bad type on operand stack in dup2_x2"),
255 /* Unreachable: In order to hit this case, we would need a
256 * category2_1st at stack depth 3 with either 2 category_1 or 1
257 * category_2 on TOS, which is not possible. */
258 new Case("case38", "verifier.cpp", false, "case dup2_x2",
259 "TOS-3 is category2_1st (would split)",
260 "Bad type on operand stack in dup2_x2"),
262 new Case("case39", "verifier.cpp", true, "case return",
263 "return type of method is not void",
264 "Method expects a return value"),
266 new Case("case40", "verifier.cpp", true, "case return",
267 "return with uninitialized this ",
268 "Constructor must call super() or this() before return"),
270 new Case("case41", "verifier.cpp", true, "case new",
271 "cp index not a class type",
272 "Illegal new instruction"),
274 new Case("case42", "verifier.cpp", true, "case arraylength",
275 "TOS is not an array",
276 "Bad type on operand stack in arraylength"),
278 new Case("case43", "verifier.cpp", true, "case multianewarray",
279 "CP index does not refer to array type",
280 "Illegal constant pool index in multianewarray instruction"),
282 new Case("case44", "verifier.cpp", true, "case multianewarray",
283 "Bad dimension (<1) or does not match CP signature",
284 "Illegal dimension in multianewarray instruction: "),
286 new Case("case45", "verifier.cpp", true, "case default",
287 "Unrecognized bytecode",
288 "Bad instruction: "),
290 new Case("case46", "verifier.cpp", true, "loop end",
291 "control flow falls off method",
292 "Control flow falls through code end"),
294 new Case("case47", "verifier.cpp", true, "generate_code_data",
295 "illegal bytecode via RawBytecodeStream (breakpoint)",
296 "Bad instruction"),
298 new Case("case48", "verifier.cpp", true, "generate_code_data",
299 "illegal bytecode via RawBytecodeStream (other illegal)",
300 "Bad instruction"),
302 new Case("case49", "verifier.cpp", true,
303 "verify_exception_handler_table",
304 "catch_type is not throwable",
305 "Catch type is not a subclass of Throwable in " +
306 "exception handler "),
308 new Case("case50", "verifier.cpp", true, "verify_stackmap_table",
309 "missing a stack map frame @ target location (mid table)",
310 "Expecting a stack map frame"),
312 new Case("case51", "verifier.cpp", true, "verify_stackmap_table",
313 "stack map does not match?",
314 "Instruction type does not match stack map"),
316 new Case("case52", "verifier.cpp", true, "verify_stackmap_table",
317 "missing a stack map frame @ target location (end of table)",
318 "Expecting a stack map frame"),
320 new Case("case53", "verifier.cpp", true,
321 "verify_exception_handler_targets",
322 "stackmap mismatch at exception handler",
323 "Stack map does not match the one at exception handler "),
325 new Case("case54", "verifier.cpp", true, "verify_cp_index",
326 "constant pool index is out-of-bounds",
327 "Illegal constant pool index "),
329 new Case("case55", "verifier.cpp", true, "verify_cp_type",
330 "constant pool entry is not expected type",
331 "Illegal type at constant pool entry "),
333 new Case("case56", "verifier.cpp", true, "verify_cp_class_type",
334 "constant pool entry is not an object type",
335 "Illegal type at constant pool entry "),
337 /* Unreachable: verify_cp_type gates this case */
338 new Case("case57", "verifier.cpp", false, "verify_ldc",
339 "invalid constant pool index in ldc",
340 "Invalid index in ldc"),
342 /* No longer a valid test case for bytecode version >= 51. Nonzero
343 * padding bytes are permitted with lookupswitch and tableswitch
344 * bytecodes as of JVMS 3d edition */
345 new Case("case58", "verifier.cpp", false, "verify_switch",
346 "bad switch padding",
347 "Nonzero padding byte in lookupswitch or tableswitch"),
349 new Case("case59", "verifier.cpp", true, "verify_switch",
350 "tableswitch low is greater than high",
351 "low must be less than or equal to high in tableswitch"),
353 /* Unreachable on 64-bit? Only way to get here is to overflow
354 * the 'keys' variable which can't happen on 64-bit since we're dealing
355 * with 32-bit values. Perhaps reachable on 32-bit but the
356 * triggering class would be quite large */
357 new Case("case60", "verifier.cpp", false, "verify_switch",
358 "high - low + 1 < 0 (overflow?)",
359 "too many keys in tableswitch"),
361 /* Would have to create a 16G classfile to trip this. Possible but
362 * not reasonable to do in a test. */
363 new Case("case61", "verifier.cpp", false, "verify_switch",
364 "lookupswitch keys < 0",
365 "number of keys in lookupswitch less than 0"),
367 new Case("case62", "verifier.cpp", true, "verify_switch",
368 "lookupswitch keys out-of-order",
369 "Bad lookupswitch instruction"),
371 /* Unreachable: Class file parser verifies Fieldref contents */
372 new Case("case63", "verifier.cpp", false, "verify_field_instructions",
373 "referenced class is not an CP object",
374 "Expecting reference to class in class "),
376 new Case("case64", "verifier.cpp", true, "verify_field_instructions",
377 "TOS not assignable to field type in putfield",
378 "Bad type on operand stack in putfield"),
380 new Case("case65", "verifier.cpp", true, "verify_field_instructions",
381 "TOS not assignable to class when accessing protected field",
382 "Bad access to protected data in getfield"),
384 new Case("case66", "verifier.cpp", true, "verify_invoke_init",
385 "Uninit_this is not of the current type or it's supertype",
386 "Bad <init> method call"),
388 /* Unreachable: Stack map parsing ensures valid type and new
389 * instructions have a valid BCI. */
390 new Case("case67", "verifier.cpp", false, "verify_invoke_init",
391 "Uninit type with bad new instruction index",
392 "Expecting new instruction"),
394 new Case("case68", "verifier.cpp", true, "verify_invoke_init",
395 "calling other class's <init> method",
396 "Call to wrong <init> method"),
398 new Case("case69", "verifier.cpp", true, "verify_invoke_init",
399 "Calling protected <init> and type unassignable from current",
400 "Bad access to protected <init> method"),
402 new Case("case70", "verifier.cpp", true, "verify_invoke_init",
403 "TOS is not an uninitialized (or Uninit_this) type",
404 "Bad operand type when invoking <init>"),
406 new Case("case71", "verifier.cpp", true, "verify_invoke_instructions",
407 "Arg count in instruction doesn't match signature",
408 "Inconsistent args count operand in invokeinterface"),
410 new Case("case72", "verifier.cpp", true, "verify_invoke_instructions",
411 "Non-zero pad in invokeinterface",
412 "Fourth operand byte of invokeinterface must be zero"),
414 new Case("case73", "verifier.cpp", true, "verify_invoke_instructions",
415 "Non-zero pad in invokedynamic",
416 "Third and fourth operand bytes of " +
417 "invokedynamic must be zero"),
419 new Case("case74", "verifier.cpp", true, "verify_invoke_instructions",
420 "Non-invokespecial trying to invoke a '<' method",
421 "Illegal call to internal method"),
423 new Case("case75", "verifier.cpp", true, "verify_invoke_instructions",
424 "invokespecial and current unassignable from referenced type",
425 "Bad invokespecial instruction: current class isn't " +
426 "assignable to reference class."),
428 new Case("case76", "verifier.cpp", true, "verify_invoke_instructions",
429 "TOS not assignable to current when calling protected method",
430 "Bad access to protected data in invokevirtual"),
432 /* Unreachable: class file parser enforces void signature */
433 new Case("case77", "verifier.cpp", false, "verify_invoke_instructions",
434 "<init> method is not void return",
435 "Return type must be void in <init> method"),
437 new Case("case78", "verifier.cpp", true, "get_newarray_type",
438 "newarray type invalid",
439 "Illegal newarray instruction"),
441 new Case("case79", "verifier.cpp", true, "verify_return_value",
442 "void return from method which has a return value",
443 "Method expects a return value"),
445 new Case("case80", "verifier.cpp", true, "verify_return_value",
446 "TOS type does not match signature",
447 "Bad return type"),
449 new Case("case81", "verifier.cpp", true, "verify_stackmap_table",
450 "stack map does not match (flags)",
451 "Instruction type does not match stack map")
452 };
453 }
455 public class Test7116786 {
456 public static void main(String argv[]) throws Exception {
457 for (Case c : VerifyErrorCases.cases) {
458 System.out.println("******** " + c.getCaseName() + " ********");
459 if (c.isTestable()) {
460 try {
461 ClassLoader cl = Test7116786.class.getClassLoader();
462 Class<?> cls = Class.forName(c.getCaseName(), true, cl);
463 throw new RuntimeException(
464 "++ FAIL: No verify error encountered");
465 } catch (VerifyError ve) {
466 String message = c.getMessage();
467 String veMessage = ve.getMessage();
468 System.out.print(veMessage);
469 if (!veMessage.startsWith(message)) {
470 // We're not seeing the message we expect. Could be
471 // that we've gotten the wrong VerifyError case, or
472 // maybe the message changed.
473 System.out.println("++ FAIL? " +
474 "Message does not match what was expected: " +
475 message);
476 continue;
477 }
478 if (!veMessage.contains("Exception Details:") &&
479 !veMessage.contains("Reason:")) {
480 System.out.println("++ FAIL: No details found");
481 throw new RuntimeException("FAIL: No details found");
482 }
483 System.out.println("++ PASS");
484 }
485 } else {
486 System.out.println("++ SKIPPED");
487 }
488 }
489 }
490 }
