1 /*
2 * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
3 * Copyright (c) 2018 SAP SE. All rights reserved.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
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23 */
24
25 /**
26 * @test
27 * @summary Check that the verbose message of the AME is printed correctly.
28 * @requires !(os.arch=="aarch64" | os.arch=="arm")
29 * @library /test/lib /
30 * @build sun.hotspot.WhiteBox
31 * @run driver ClassFileInstaller sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission
32 * @compile AbstractMethodErrorTest.java
33 * @compile AME1_E.jasm AME2_C.jasm AME3_C.jasm AME4_E.jasm AME5_B.jasm AME6_B.jasm
34 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
35 * -XX:-BackgroundCompilation -XX:-Inline
36 * -XX:CompileCommand=exclude,AbstractMethodErrorTest::test_ame1
37 * AbstractMethodErrorTest
38 */
39
40 import sun.hotspot.WhiteBox;
41 import compiler.whitebox.CompilerWhiteBoxTest;
42 import java.lang.reflect.Method;
43
44 // This test assembles an errorneous installation of classes.
45 // First, compile the test by @compile. This results in a legal set
46 // of classes.
47 // Then, with jasm, generate incompatible classes that overwrite
48 // the class files in the build directory.
49 // Last, call the real test throwing an AbstractMethodError and
50 // check the message generated.
51 public class AbstractMethodErrorTest {
52
53 private static final WhiteBox WHITE_BOX = WhiteBox.getWhiteBox();
54
55 private static boolean enableChecks = true;
56
57 public static void setup_test() {
58 // Assure all exceptions are loaded.
59 new AbstractMethodError();
60 new IncompatibleClassChangeError();
61
62 enableChecks = false;
63 // Warmup
64 System.out.println("warmup:");
65 test_ame5_compiled_vtable_stub();
66 test_ame6_compiled_itable_stub();
67 enableChecks = true;
68
69 // Compile
70 try {
71 Method method = AbstractMethodErrorTest.class.getMethod("test_ame5_compiled_vtable_stub");
72 WHITE_BOX.enqueueMethodForCompilation(method, CompilerWhiteBoxTest.COMP_LEVEL_FULL_OPTIMIZATION);
73 if (!WHITE_BOX.isMethodCompiled(method)) {
74 throw new RuntimeException(method.getName() + " is not compiled");
75 }
76 method = AbstractMethodErrorTest.class.getMethod("test_ame6_compiled_itable_stub");
77 WHITE_BOX.enqueueMethodForCompilation(method, CompilerWhiteBoxTest.COMP_LEVEL_FULL_OPTIMIZATION);
78 if (!WHITE_BOX.isMethodCompiled(method)) {
79 throw new RuntimeException(method.getName() + " is not compiled");
80 }
81 method = AME5_C.class.getMethod("c");
82 WHITE_BOX.enqueueMethodForCompilation(method, CompilerWhiteBoxTest.COMP_LEVEL_FULL_OPTIMIZATION);
83 if (!WHITE_BOX.isMethodCompiled(method)) {
84 throw new RuntimeException("AME5_C." + method.getName() + " is not compiled");
85 }
86 method = AME5_D.class.getMethod("c");
87 WHITE_BOX.enqueueMethodForCompilation(method, CompilerWhiteBoxTest.COMP_LEVEL_FULL_OPTIMIZATION);
88 if (!WHITE_BOX.isMethodCompiled(method)) {
89 throw new RuntimeException("AME5_D." + method.getName() + " is not compiled");
90 }
91 method = AME5_E.class.getMethod("c");
92 WHITE_BOX.enqueueMethodForCompilation(method, CompilerWhiteBoxTest.COMP_LEVEL_FULL_OPTIMIZATION);
93 if (!WHITE_BOX.isMethodCompiled(method)) {
94 throw new RuntimeException("AME5_E." + method.getName() + " is not compiled");
95 }
96 method = AME6_C.class.getMethod("c");
97 WHITE_BOX.enqueueMethodForCompilation(method, CompilerWhiteBoxTest.COMP_LEVEL_FULL_OPTIMIZATION);
98 if (!WHITE_BOX.isMethodCompiled(method)) {
99 throw new RuntimeException("AME6_C." + method.getName() + " is not compiled");
100 }
101 method = AME6_D.class.getMethod("c");
102 WHITE_BOX.enqueueMethodForCompilation(method, CompilerWhiteBoxTest.COMP_LEVEL_FULL_OPTIMIZATION);
103 if (!WHITE_BOX.isMethodCompiled(method)) {
104 throw new RuntimeException("AME6_D." + method.getName() + " is not compiled");
105 }
106 method = AME6_E.class.getMethod("c");
107 WHITE_BOX.enqueueMethodForCompilation(method, CompilerWhiteBoxTest.COMP_LEVEL_FULL_OPTIMIZATION);
108 if (!WHITE_BOX.isMethodCompiled(method)) {
109 throw new RuntimeException("AME6_E." + method.getName() + " is not compiled");
110 }
111 } catch (NoSuchMethodException e) { }
112 }
113
114 private static String expectedErrorMessageAME1_1 =
115 "Missing implementation of resolved method abstract " +
116 "anAbstractMethod()Ljava/lang/String; of abstract class AME1_B.";
117 private static String expectedErrorMessageAME1_2 =
118 "Receiver class AME1_E does not define or inherit an implementation of the " +
119 "resolved method abstract aFunctionOfMyInterface()Ljava/lang/String; of " +
120 "interface AME1_C.";
121
122 public static void test_ame1() {
123 AME1_B objectAbstract = new AME1_D();
124 AME1_C objectInterface = new AME1_D();
125 objectInterface.secondFunctionOfMyInterface();
126 objectAbstract.anAbstractMethod();
127 objectInterface.aFunctionOfMyInterface();
128
129 try {
130 objectAbstract = new AME1_E();
131 // AbstractMethodError gets thrown in the interpreter at:
132 // InterpreterGenerator::generate_abstract_entry
133 objectAbstract.anAbstractMethod();
134 throw new RuntimeException("Expected AbstractRuntimeError was not thrown.");
135 } catch (AbstractMethodError e) {
136 String errorMsg = e.getMessage();
137 if (errorMsg == null) {
138 throw new RuntimeException("Caught AbstractMethodError with empty message.");
139 } else if (!errorMsg.equals(expectedErrorMessageAME1_1)) {
140 System.out.println("Expected: " + expectedErrorMessageAME1_1 + "\n" +
141 "but got: " + errorMsg);
142 throw new RuntimeException("Wrong error message of AbstractMethodError.");
143 }
144 } catch (RuntimeException e) {
145 throw e;
146 } catch (Throwable e) {
147 throw new RuntimeException("Caught unexpected exception: " + e);
148 }
149
150 try {
151 objectInterface = new AME1_E();
152 // AbstractMethodError gets thrown in:
153 // TemplateTable::invokeinterface or C-Interpreter loop
154 objectInterface.aFunctionOfMyInterface();
155 throw new RuntimeException("Expected AbstractRuntimeError was not thrown.");
156 } catch (AbstractMethodError e) {
157 String errorMsg = e.getMessage();
158 if (errorMsg == null) {
159 throw new RuntimeException("Caught AbstractMethodError with empty message.");
160 } else if (!errorMsg.equals(expectedErrorMessageAME1_2)) {
161 // Thrown via InterpreterRuntime::throw_AbstractMethodErrorVerbose().
162 System.out.println("Expected: " + expectedErrorMessageAME1_2 + "\n" +
163 "but got: " + errorMsg);
164 throw new RuntimeException("Wrong error message of AbstractMethodError.");
165 }
166 } catch (Throwable e) {
167 throw new RuntimeException("Caught unexpected exception: " + e);
168 }
169 }
170
171 private static String expectedErrorMessageAME2_Interpreted =
172 "Missing implementation of resolved method abstract " +
173 "aFunctionOfMyInterface()V of interface AME2_A.";
174 private static String expectedErrorMessageAME2_Compiled =
175 "Receiver class AME2_C does not define or inherit an implementation of the resolved method " +
176 "abstract aFunctionOfMyInterface()V of interface AME2_A.";
177
178 public AbstractMethodErrorTest() throws InstantiationException, IllegalAccessException {
179 try {
180 AME2_B myAbstract = new ImplementsAllFunctions();
181 myAbstract.fun2();
182 myAbstract.aFunctionOfMyInterface();
183
184 // AME2_C does not implement the method
185 // aFunctionOfMyInterface(). Expected runtime behavior is
186 // throwing an AbstractMethodError.
187 // The error will be thrown via throw_AbstractMethodErrorWithMethod()
188 // if the template interpreter calls an abstract method by
189 // entering the abstract method entry.
190 myAbstract = new AME2_C();
191 myAbstract.fun2();
192 myAbstract.aFunctionOfMyInterface();
193 } catch (SecurityException e) {
194 e.printStackTrace();
195 }
196 }
197
198 // Loop so that method gets eventually compiled/osred.
199 public static void test_ame2() throws Exception {
200 boolean seenInterpreted = false;
201 boolean seenCompiled = false;
202
203 // Loop to test both, the interpreted and the compiled case.
204 for (int i = 0; i < 10000 && !(seenInterpreted && seenCompiled); ++i) {
205 try {
206 // Supposed to throw AME with verbose message.
207 new AbstractMethodErrorTest();
208
209 throw new RuntimeException("Expected AbstractMethodError was not thrown.");
210 } catch (AbstractMethodError e) {
211 String errorMsg = e.getMessage();
212
213 // Check the message obtained.
214 if (errorMsg == null) {
215 throw new RuntimeException("Caught AbstractMethodError with empty message.");
216 } else if (errorMsg.equals(expectedErrorMessageAME2_Interpreted)) {
217 seenInterpreted = true;
218 } else if (errorMsg.equals(expectedErrorMessageAME2_Compiled)) {
219 // Sparc and the other platforms behave differently here:
220 // Sparc throws the exception via SharedRuntime::handle_wrong_method_abstract(),
221 // x86, ppc and s390 via LinkResolver::runtime_resolve_virtual_method(). Thus,
222 // sparc misses the test case for LinkResolver::runtime_resolve_virtual_method().
223 seenCompiled = true;
224 } else {
225 System.out.println("Expected: " + expectedErrorMessageAME2_Interpreted + "\n" +
226 "or: " + expectedErrorMessageAME2_Compiled + "\n" +
227 "but got: " + errorMsg);
228 throw new RuntimeException("Wrong error message of AbstractMethodError.");
229 }
230 }
231 }
232 if (!(seenInterpreted && seenCompiled)) {
233 if (seenInterpreted) { System.out.println("Saw interpreted message."); }
234 if (seenCompiled) { System.out.println("Saw compiled message."); }
235 throw new RuntimeException("Test did not produce wrong error messages for AbstractMethodError, " +
236 "but it did not test both cases (interpreted and compiled).");
237 }
238 }
239
240 private static String expectedErrorMessageAME3_1 =
241 "Receiver class AME3_C does not define or inherit an implementation of the resolved method " +
242 "ma()V of class AME3_A. Selected method is abstract AME3_B.ma()V.";
243
244 // Testing abstract class that extends a class that has an implementation.
245 // Loop so that method gets eventually compiled/osred.
246 public static void test_ame3_1() throws Exception {
247 AME3_A c = new AME3_C();
248
249 try {
250 // Supposed to throw AME with verbose message.
251 c.ma();
252
253 throw new RuntimeException("Expected AbstractMethodError was not thrown.");
254 } catch (AbstractMethodError e) {
255 String errorMsg = e.getMessage();
256
257 // Check the message obtained.
258 if (errorMsg == null) {
259 throw new RuntimeException("Caught AbstractMethodError with empty message.");
260 } else if (errorMsg.equals(expectedErrorMessageAME3_1)) {
261 // Expected test case thrown via LinkResolver::runtime_resolve_virtual_method().
262 } else {
263 System.out.println("Expected: " + expectedErrorMessageAME3_1 + "\n" +
264 "but got: " + errorMsg);
265 throw new RuntimeException("Wrong error message of AbstractMethodError.");
266 }
267 }
268 }
269
270 private static String expectedErrorMessageAME3_2 =
271 "Receiver class AME3_C does not define or inherit an implementation of " +
272 "the resolved method abstract ma()V of abstract class AME3_B.";
273
274 // Testing abstract class that extends a class that has an implementation.
275 // Loop so that method gets eventually compiled/osred.
276 public static void test_ame3_2() throws Exception {
277 AME3_C c = new AME3_C();
278
279 try {
280 // Supposed to throw AME with verbose message.
281 c.ma();
282
283 throw new RuntimeException("Expected AbstractMethodError was not thrown.");
284 } catch (AbstractMethodError e) {
285 String errorMsg = e.getMessage();
286
287 // Check the message obtained.
288 if (errorMsg == null) {
289 throw new RuntimeException("Caught AbstractMethodError with empty message.");
290 } else if (errorMsg.equals(expectedErrorMessageAME3_2)) {
291 // Expected test case thrown via LinkResolver::runtime_resolve_virtual_method().
292 } else {
293 System.out.println("Expected: " + expectedErrorMessageAME3_2 + "\n" +
294 "but got: " + errorMsg);
295 throw new RuntimeException("Wrong error message of AbstractMethodError.");
296 }
297 }
298 }
299
300 private static String expectedErrorMessageAME4 =
301 "Missing implementation of resolved method abstract ma()V of " +
302 "abstract class AME4_B.";
303
304 // Testing abstract class that extends a class that has an implementation.
305 public static void test_ame4() throws Exception {
306 AME4_C c = new AME4_C();
307 AME4_D d = new AME4_D();
308 AME4_E e = new AME4_E(); // Errorneous.
309
310 AME4_A a;
311 try {
312 // Test: calls errorneous e.ma() in the last iteration.
313 final int iterations = 10;
314 for (int i = 0; i < iterations; i++) {
315 a = e;
316 if (i % 2 == 0 && i < iterations - 1) {
317 a = c;
318 }
319 if (i % 2 == 1 && i < iterations - 1) {
320 a = d;
321 }
322
323 // AbstractMethodError gets thrown in the interpreter at:
324 // InterpreterGenerator::generate_abstract_entry
325 a.ma();
326 }
327
328 throw new RuntimeException("Expected AbstractMethodError was not thrown.");
329 } catch (AbstractMethodError exc) {
330 System.out.println();
331 String errorMsg = exc.getMessage();
332
333 // Check the message obtained.
334 if (enableChecks && errorMsg == null) {
335 throw new RuntimeException("Caught AbstractMethodError with empty message.");
336 } else if (errorMsg.equals(expectedErrorMessageAME4)) {
337 // Expected test case.
338 } else if (enableChecks) {
339 System.out.println("Expected: " + expectedErrorMessageAME4 + "\n" +
340 "but got: " + errorMsg);
341 throw new RuntimeException("Wrong error message of AbstractMethodError.");
342 }
343 }
344 }
345
346 private static String expectedErrorMessageAME5_VtableStub =
347 "Receiver class AME5_B does not define or inherit an implementation of the resolved method abstract mc()V " +
348 "of abstract class AME5_A.";
349
350 // AbstractMethodErrors detected in vtable stubs.
351 // Note: How can we verify that we really stepped through the vtable stub?
352 // - Bimorphic inlining should not happen since we have no profiling data when
353 // we compile the method
354 // - As a result, an inline cache call should be generated
355 // - This inline cache call is patched into a real vtable call at the first
356 // re-resolve, which happens constantly during the first 10 iterations of the loop.
357 // => we should be fine! :-)
358 public static void test_ame5_compiled_vtable_stub() {
359 // Allocated the objects we need and call a valid method.
360 boolean caught_ame = false;
361 AME5_B b = new AME5_B();
362 AME5_C c = new AME5_C();
363 AME5_D d = new AME5_D();
364 AME5_E e = new AME5_E();
365 b.ma();
366 c.ma();
367 d.ma();
368 e.ma();
369
370 try {
371 final int iterations = 10;
372 // Test: calls b.c() in the last iteration.
373 for (int i = 0; i < iterations; i++) {
374 AME5_A a = b;
375 if (i % 3 == 0 && i < iterations - 1) {
376 a = c;
377 }
378 if (i % 3 == 1 && i < iterations - 1) {
379 a = d;
380 }
381 if (i % 3 == 2 && i < iterations - 1) {
382 a = e;
383 }
384
385 a.mc();
386 }
387 System.out.println();
388 } catch (AbstractMethodError exc) {
389 caught_ame = true;
390 System.out.println();
391 String errorMsg = exc.getMessage();
392 if (enableChecks && errorMsg == null) {
393 System.out.println(exc);
394 throw new RuntimeException("Empty error message of AbstractMethodError.");
395 }
396 if (enableChecks &&
397 !errorMsg.equals(expectedErrorMessageAME5_VtableStub)) {
398 // Thrown via SharedRuntime::handle_wrong_method_abstract().
399 System.out.println("Expected: " + expectedErrorMessageAME5_VtableStub + "\n" +
400 "but got: " + errorMsg);
401 System.out.println(exc);
402 throw new RuntimeException("Wrong error message of AbstractMethodError.");
403 }
404 if (enableChecks) {
405 System.out.println("Passed with message: " + errorMsg);
406 }
407 } catch (Throwable exc) {
408
409 throw exc;
410 }
411
412 // Check that we got the exception at some point.
413 if (enableChecks && !caught_ame) {
414 throw new RuntimeException("Expected AbstractMethodError was not thrown.");
415 }
416 }
417
418 private static String expectedErrorMessageAME6_ItableStub =
419 "Receiver class AME6_B does not define or inherit an implementation of the resolved" +
420 " method abstract mc()V of interface AME6_A.";
421
422 // -------------------------------------------------------------------------
423 // AbstractMethodErrors detected in itable stubs.
424 // Note: How can we verify that we really stepped through the itable stub?
425 // - Bimorphic inlining should not happen since we have no profiling data when
426 // we compile the method
427 // - As a result, an inline cache call should be generated
428 // - This inline cache call is patched into a real vtable call at the first
429 // re-resolve, which happens constantly during the first 10 iterations of the loop.
430 // => we should be fine! :-)
431 public static void test_ame6_compiled_itable_stub() {
432 // Allocated the objects we need and call a valid method.
433 boolean caught_ame = false;
434 AME6_B b = new AME6_B();
435 AME6_C c = new AME6_C();
436 AME6_D d = new AME6_D();
437 AME6_E e = new AME6_E();
438 b.ma();
439 c.ma();
440 d.ma();
441 e.ma();
442
443 try {
444 final int iterations = 10;
445 // Test: calls b.c() in the last iteration.
446 for (int i = 0; i < iterations; i++) {
447 AME6_A a = b;
448 if (i % 3 == 0 && i < iterations - 1) {
449 a = c;
450 }
451 if (i % 3 == 1 && i < iterations - 1) {
452 a = d;
453 }
454 if (i % 3 == 2 && i < iterations - 1) {
455 a = e;
456 }
457 a.mc();
458 }
459 System.out.println();
460 } catch (AbstractMethodError exc) {
461 caught_ame = true;
462 System.out.println();
463 String errorMsg = exc.getMessage();
464 if (enableChecks && errorMsg == null) {
465 System.out.println(exc);
466 throw new RuntimeException("Empty error message of AbstractMethodError.");
467 }
468 if (enableChecks &&
469 !errorMsg.equals(expectedErrorMessageAME6_ItableStub)) {
470 // Thrown via LinkResolver::runtime_resolve_interface_method().
471 System.out.println("Expected: " + expectedErrorMessageAME6_ItableStub + "\n" +
472 "but got: " + errorMsg);
473 System.out.println(exc);
474 throw new RuntimeException("Wrong error message of AbstractMethodError.");
475 }
476 if (enableChecks) {
477 System.out.println("Passed with message: " + errorMsg);
478 }
479 } catch (Throwable exc) {
480 throw exc;
481 }
482
483 // Check that we got the exception at some point.
484 if (enableChecks && !caught_ame) {
485 throw new RuntimeException("Expected AbstractMethodError was not thrown.");
486 }
487 }
488
489
490 public static void main(String[] args) throws Exception {
491 setup_test();
492 test_ame1();
493 test_ame2();
494 test_ame3_1();
495 test_ame3_2();
496 test_ame4();
497 test_ame5_compiled_vtable_stub();
498 test_ame6_compiled_itable_stub();
499 }
500 }
501
502 // Helper classes to test abstract method error.
503 //
504 // Errorneous versions of these classes are implemented in java
505 // assembler.
506
507
508 // -------------------------------------------------------------------------
509 // This error should be detected interpreted.
510 //
511 // Class hierachy:
512 //
513 // A C // interfaces
514 // | |
515 // B | // abstract class
516 // \ /
517 // E // errorneous class implementation lacks method C::aFunctionOfMyInterface
518 //
519 interface AME1_A {
520
521 public String firstFunctionOfMyInterface0();
522
523 public String secondFunctionOfMyInterface0();
524 }
525
526 abstract class AME1_B implements AME1_A {
527
528 abstract public String firstAbstractMethod();
529
530 abstract public String secondAbstractMethod();
531
532 abstract public String anAbstractMethod();
533 }
534
535 interface AME1_C {
536
537 public String firstFunctionOfMyInterface();
538
539 public String secondFunctionOfMyInterface();
540
541 public String aFunctionOfMyInterface();
542 }
543
544 class AME1_D extends AME1_B implements AME1_C {
545
546 public AME1_D() {
547 }
548
549 public String firstAbstractMethod() {
550 return this.getClass().getName();
551 }
552
553 public String secondAbstractMethod() {
554 return this.getClass().getName();
555 }
556
557 public String anAbstractMethod() {
558 return this.getClass().getName();
559 }
560
561 public String firstFunctionOfMyInterface0() {
562 return this.getClass().getName();
563 }
564
565 public String secondFunctionOfMyInterface0() {
566 return this.getClass().getName();
567 }
568
569 public String firstFunctionOfMyInterface() {
570 return this.getClass().getName();
571 }
572
573 public String secondFunctionOfMyInterface() {
574 return this.getClass().getName();
575 }
576
577 public String aFunctionOfMyInterface() {
578 return this.getClass().getName();
579 }
580 }
581
582 class AME1_E extends AME1_B implements AME1_C {
583
584 public AME1_E() {
585 }
586
587 public String firstAbstractMethod() {
588 return this.getClass().getName();
589 }
590
591 public String secondAbstractMethod() {
592 return this.getClass().getName();
593 }
594
595 // This method is missing in the .jasm implementation.
596 public String anAbstractMethod() {
597 return this.getClass().getName();
598 }
599
600 public String firstFunctionOfMyInterface0() {
601 return this.getClass().getName();
602 }
603
604 public String secondFunctionOfMyInterface0() {
605 return this.getClass().getName();
606 }
607
608 public String firstFunctionOfMyInterface() {
609 return this.getClass().getName();
610 }
611
612 public String secondFunctionOfMyInterface() {
613 return this.getClass().getName();
614 }
615
616 // This method is missing in the .jasm implementation.
617 public String aFunctionOfMyInterface() {
618 return this.getClass().getName();
619 }
620 }
621
622 // -------------------------------------------------------------------------
623 // This error should be detected interpreted.
624 //
625 // Class hierachy:
626 //
627 // A // an interface declaring aFunctionOfMyInterface()
628 // |
629 // B // an abstract class
630 // |
631 // C // errorneous implementation lacks method A::aFunctionOfMyInterface()
632 //
633 interface AME2_A {
634 public void aFunctionOfMyInterface();
635 }
636
637 abstract class AME2_B implements AME2_A {
638 abstract public void fun2();
639 }
640
641 class ImplementsAllFunctions extends AME2_B {
642
643 public ImplementsAllFunctions() {}
644
645 public void fun2() {
646 //System.out.print("You called public void ImplementsAllFunctions::fun2().\n");
647 }
648
649 public void aFunctionOfMyInterface() {
650 //System.out.print("You called public void ImplementsAllFunctions::aFunctionOfMyInterface()\n");
651 }
652 }
653
654 class AME2_C extends AME2_B {
655
656 public AME2_C() {}
657
658 public void fun2() {
659 //System.out.print("You called public void AME2_C::fun2().\n");
660 }
661
662 // This method is missing in the .jasm implementation.
663 public void aFunctionOfMyInterface() {
664 //System.out.print("You called public void AME2_C::aFunctionOfMyInterface()\n");
665 }
666 }
667
668 // -----------------------------------------------------------------------
669 // Test AbstractMethod error shadowing existing implementation.
670 //
671 // Class hierachy:
672 //
673 // A // a class implementing m()
674 // |
675 // B // an abstract class defining m() abstract
676 // |
677 // C // an errorneous class lacking an implementation of m()
678 //
679 class AME3_A {
680 public void ma() {
681 System.out.print("A.ma() ");
682 }
683 }
684
685 abstract class AME3_B extends AME3_A {
686 public abstract void ma();
687 }
688
689 class AME3_C extends AME3_B {
690 // This method is missing in the .jasm implementation.
691 public void ma() {
692 System.out.print("C.ma() ");
693 }
694 }
695
696 // -----------------------------------------------------------------------
697 // Test AbstractMethod error shadowing existing implementation. In
698 // this test there are several subclasses of the abstract class.
699 //
700 // Class hierachy:
701 //
702 // A // A: a class implementing ma()
703 // |
704 // B // B: an abstract class defining ma() abstract
705 // / | \
706 // C D E // E: an errorneous class lacking an implementation of ma()
707 //
708 class AME4_A {
709 public void ma() {
710 System.out.print("A.ma() ");
711 }
712 }
713
714 abstract class AME4_B extends AME4_A {
715 public abstract void ma();
716 }
717
718 class AME4_C extends AME4_B {
719 public void ma() {
720 System.out.print("C.ma() ");
721 }
722 }
723
724 class AME4_D extends AME4_B {
725 public void ma() {
726 System.out.print("D.ma() ");
727 }
728 }
729
730 class AME4_E extends AME4_B {
731 // This method is missing in the .jasm implementation.
732 public void ma() {
733 System.out.print("E.ma() ");
734 }
735 }
736
737 // -------------------------------------------------------------------------
738 // This error should be detected while processing the vtable stub.
739 //
740 // Class hierachy:
741 //
742 // A__ // abstract
743 // /|\ \
744 // C D E \
745 // B // Bad class, missing method implementation.
746 //
747 // Test:
748 // - Call D.mc() / E.mc() / F.mc() several times to force real vtable call constrution
749 // - Call errorneous B.mc() in the end to raise the AbstraceMethodError
750
751 abstract class AME5_A {
752 abstract void ma();
753 abstract void mb();
754 abstract void mc();
755 }
756
757 class AME5_B extends AME5_A {
758 void ma() {
759 System.out.print("B.ma() ");
760 }
761
762 void mb() {
763 System.out.print("B.mb() ");
764 }
765
766 // This method is missing in the .jasm implementation.
767 void mc() {
768 System.out.print("B.mc() ");
769 }
770 }
771
772 class AME5_C extends AME5_A {
773 void ma() {
774 System.out.print("C.ma() ");
775 }
776
777 void mb() {
778 System.out.print("C.mb() ");
779 }
780
781 void mc() {
782 System.out.print("C.mc() ");
783 }
784 }
785
786 class AME5_D extends AME5_A {
787 void ma() {
788 System.out.print("D.ma() ");
789 }
790
791 void mb() {
792 System.out.print("D.mb() ");
793 }
794
795 void mc() {
796 System.out.print("D.mc() ");
797 }
798 }
799
800 class AME5_E extends AME5_A {
801 void ma() {
802 System.out.print("E.ma() ");
803 }
804
805 void mb() {
806 System.out.print("E.mb() ");
807 }
808
809 void mc() {
810 System.out.print("E.mc() ");
811 }
812 }
813
814 //-------------------------------------------------------------------------
815 // Test AbstractMethod error detected while processing
816 // the itable stub.
817 //
818 // Class hierachy:
819 //
820 // A__ (interface)
821 // /|\ \
822 // C D E \
823 // B (bad class, missing method)
824 //
825 // Test:
826 // - Call D.mc() / E.mc() / F.mc() several times to force real itable call constrution
827 // - Call errorneous B.mc() in the end to raise the AbstraceMethodError
828
829 interface AME6_A {
830 abstract void ma();
831 abstract void mb();
832 abstract void mc();
833 }
834
835 class AME6_B implements AME6_A {
836 public void ma() {
837 System.out.print("B.ma() ");
838 }
839
840 public void mb() {
841 System.out.print("B.mb() ");
842 }
843
844 // This method is missing in the .jasm implementation.
845 public void mc() {
846 System.out.print("B.mc() ");
847 }
848 }
849
850 class AME6_C implements AME6_A {
851 public void ma() {
852 System.out.print("C.ma() ");
853 }
854
855 public void mb() {
856 System.out.print("C.mb() ");
857 }
858
859 public void mc() {
860 System.out.print("C.mc() ");
861 }
862 }
863
864 class AME6_D implements AME6_A {
865 public void ma() {
866 System.out.print("D.ma() ");
867 }
868
869 public void mb() {
870 System.out.print("D.mb() ");
871 }
872
873 public void mc() {
874 System.out.print("D.mc() ");
875 }
876 }
877
878 class AME6_E implements AME6_A {
879 public void ma() {
880 System.out.print("E.ma() ");
881 }
882
883 public void mb() {
884 System.out.print("E.mb() ");
885 }
886
887 public void mc() {
888 System.out.print("E.mc() ");
889 }
890 }