1 /*
2 * Copyright (c) 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. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 /*
27 * @test TestStableInt
28 * @summary tests on stable fields and arrays
29 * @library /testlibrary /testlibrary/whitebox
30 * @build TestStableInt StableConfiguration sun.hotspot.WhiteBox
31 * @run main ClassFileInstaller sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission
32 * @run main ClassFileInstaller
33 * java/lang/invoke/StableConfiguration
34 * java/lang/invoke/TestStableInt
35 * java/lang/invoke/TestStableInt$IntStable
36 * java/lang/invoke/TestStableInt$StaticIntStable
37 * java/lang/invoke/TestStableInt$VolatileIntStable
38 * java/lang/invoke/TestStableInt$IntArrayDim1
39 * java/lang/invoke/TestStableInt$IntArrayDim2
40 * java/lang/invoke/TestStableInt$IntArrayDim3
41 * java/lang/invoke/TestStableInt$IntArrayDim4
42 * java/lang/invoke/TestStableInt$ObjectArrayLowerDim0
43 * java/lang/invoke/TestStableInt$ObjectArrayLowerDim1
44 * java/lang/invoke/TestStableInt$NestedStableField
45 * java/lang/invoke/TestStableInt$NestedStableField$A
46 * java/lang/invoke/TestStableInt$NestedStableField1
47 * java/lang/invoke/TestStableInt$NestedStableField1$A
48 * java/lang/invoke/TestStableInt$NestedStableField2
49 * java/lang/invoke/TestStableInt$NestedStableField2$A
50 * java/lang/invoke/TestStableInt$NestedStableField3
51 * java/lang/invoke/TestStableInt$NestedStableField3$A
52 * java/lang/invoke/TestStableInt$DefaultValue
53 * java/lang/invoke/TestStableInt$DefaultStaticValue
54 * java/lang/invoke/TestStableInt$ObjectArrayLowerDim2
55 *
56 * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
57 * -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
58 * -server -XX:-TieredCompilation
59 * -XX:+FoldStableValues
60 * -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
61 * java.lang.invoke.TestStableInt
62 * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
63 * -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
64 * -server -XX:-TieredCompilation
65 * -XX:-FoldStableValues
66 * -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
67 * java.lang.invoke.TestStableInt
68 *
69 * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
70 * -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
71 * -server -XX:+TieredCompilation -XX:TieredStopAtLevel=1
72 * -XX:+FoldStableValues
73 * -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
74 * java.lang.invoke.TestStableInt
75 * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
76 * -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
77 * -server -XX:+TieredCompilation -XX:TieredStopAtLevel=1
78 * -XX:-FoldStableValues
79 * -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
80 * java.lang.invoke.TestStableInt
81 *
82 * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
83 * -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
84 * -client -XX:-TieredCompilation
85 * -XX:+FoldStableValues
86 * -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
87 * java.lang.invoke.TestStableInt
88 * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
89 * -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
90 * -client -XX:-TieredCompilation
91 * -XX:-FoldStableValues
92 * -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
93 * java.lang.invoke.TestStableInt
94 */
95 package java.lang.invoke;
96
97 import java.lang.reflect.InvocationTargetException;
98
99 public class TestStableInt {
100 static final boolean isStableEnabled = StableConfiguration.isStableEnabled;
101 static final boolean isServerWithStable = StableConfiguration.isServerWithStable;
102
103 public static void main(String[] args) throws Exception {
104 run(DefaultValue.class);
105 run(IntStable.class);
106 run(DefaultStaticValue.class);
107 run(StaticIntStable.class);
108 run(VolatileIntStable.class);
109
110 // @Stable arrays: Dim 1-4
111 run(IntArrayDim1.class);
112 run(IntArrayDim2.class);
113 run(IntArrayDim3.class);
114 run(IntArrayDim4.class);
115
116 // @Stable Object field: dynamic arrays
117 run(ObjectArrayLowerDim0.class);
118 run(ObjectArrayLowerDim1.class);
119 run(ObjectArrayLowerDim2.class);
120
121 // Nested @Stable fields
122 run(NestedStableField.class);
123 run(NestedStableField1.class);
124 run(NestedStableField2.class);
125 run(NestedStableField3.class);
126
127 if (failed) {
128 throw new Error("TEST FAILED");
129 }
130 }
131
132 /* ==================================================== */
133
134 static class DefaultValue {
135 public @Stable int v;
136
137 public static final DefaultValue c = new DefaultValue();
138 public static int get() { return c.v; }
139 public static void test() throws Exception {
140 int val1 = get();
141 c.v = 1; int val2 = get();
142 assertEquals(val1, 0);
143 assertEquals(val2, 1);
144 }
145 }
146
147 /* ==================================================== */
148
149 static class IntStable {
150 public @Stable int v;
151
152 public static final IntStable c = new IntStable();
153 public static int get() { return c.v; }
154 public static void test() throws Exception {
155 c.v = 1; int val1 = get();
156 c.v = 2; int val2 = get();
157 assertEquals(val1, 1);
158 assertEquals(val2, (isStableEnabled ? 1 : 2));
159 }
160 }
161
162 /* ==================================================== */
163
164 static class DefaultStaticValue {
165 public static @Stable int v;
166
167 public static final DefaultStaticValue c = new DefaultStaticValue();
168 public static int get() { return c.v; }
169 public static void test() throws Exception {
170 int val1 = get();
171 c.v = 1; int val2 = get();
172 assertEquals(val1, 0);
173 assertEquals(val2, 1);
174 }
175 }
176
177 /* ==================================================== */
178
179 static class StaticIntStable {
180 public static @Stable int v;
181
182 public static final StaticIntStable c = new StaticIntStable();
183 public static int get() { return c.v; }
184 public static void test() throws Exception {
185 c.v = 1; int val1 = get();
186 c.v = 2; int val2 = get();
187 assertEquals(val1, 1);
188 assertEquals(val2, (isStableEnabled ? 1 : 2));
189 }
190 }
191
192 /* ==================================================== */
193
194 static class VolatileIntStable {
195 public @Stable volatile int v;
196
197 public static final VolatileIntStable c = new VolatileIntStable();
198 public static int get() { return c.v; }
199 public static void test() throws Exception {
200 c.v = 1; int val1 = get();
201 c.v = 2; int val2 = get();
202 assertEquals(val1, 1);
203 assertEquals(val2, (isStableEnabled ? 1 : 2));
204 }
205 }
206
207 /* ==================================================== */
208 // @Stable array == field && all components are stable
209
210 static class IntArrayDim1 {
211 public @Stable int[] v;
212
213 public static final IntArrayDim1 c = new IntArrayDim1();
214 public static int get() { return c.v[0]; }
215 public static int get1() { return c.v[10]; }
216 public static int[] get2() { return c.v; }
217 public static void test() throws Exception {
218 {
219 c.v = new int[1]; c.v[0] = 1; int val1 = get();
220 c.v[0] = 2; int val2 = get();
221 assertEquals(val1, 1);
222 assertEquals(val2, (isServerWithStable ? 1 : 2));
223
224 c.v = new int[1]; c.v[0] = 3; int val3 = get();
225 assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 1 : 2)
226 : 3));
227 }
228
229 {
230 c.v = new int[20]; c.v[10] = 1; int val1 = get1();
231 c.v[10] = 2; int val2 = get1();
232 assertEquals(val1, 1);
233 assertEquals(val2, (isServerWithStable ? 1 : 2));
234
235 c.v = new int[20]; c.v[10] = 3; int val3 = get1();
236 assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 1 : 2)
237 : 3));
238 }
239
240 {
241 c.v = new int[1]; int[] val1 = get2();
242 c.v = new int[1]; int[] val2 = get2();
243 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
244 }
245 }
246 }
247
248 /* ==================================================== */
249
250 static class IntArrayDim2 {
251 public @Stable int[][] v;
252
253 public static final IntArrayDim2 c = new IntArrayDim2();
254 public static int get() { return c.v[0][0]; }
255 public static int[] get1() { return c.v[0]; }
256 public static int[][] get2() { return c.v; }
257 public static void test() throws Exception {
258 {
259 c.v = new int[1][1]; c.v[0][0] = 1; int val1 = get();
260 c.v[0][0] = 2; int val2 = get();
261 assertEquals(val1, 1);
262 assertEquals(val2, (isServerWithStable ? 1 : 2));
263
264 c.v = new int[1][1]; c.v[0][0] = 3; int val3 = get();
265 assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 1 : 2)
266 : 3));
267
268 c.v[0] = new int[1]; c.v[0][0] = 4; int val4 = get();
269 assertEquals(val4, (isStableEnabled ? (isServerWithStable ? 1 : 2)
270 : 4));
271 }
272
273 {
274 c.v = new int[1][1]; int[] val1 = get1();
275 c.v[0] = new int[1]; int[] val2 = get1();
276 assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
277 }
278
279 {
280 c.v = new int[1][1]; int[][] val1 = get2();
281 c.v = new int[1][1]; int[][] val2 = get2();
282 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
283 }
284 }
285 }
286
287 /* ==================================================== */
288
289 static class IntArrayDim3 {
290 public @Stable int[][][] v;
291
292 public static final IntArrayDim3 c = new IntArrayDim3();
293 public static int get() { return c.v[0][0][0]; }
294 public static int[] get1() { return c.v[0][0]; }
295 public static int[][] get2() { return c.v[0]; }
296 public static int[][][] get3() { return c.v; }
297 public static void test() throws Exception {
298 {
299 c.v = new int[1][1][1]; c.v[0][0][0] = 1; int val1 = get();
300 c.v[0][0][0] = 2; int val2 = get();
301 assertEquals(val1, 1);
302 assertEquals(val2, (isServerWithStable ? 1 : 2));
303
304 c.v = new int[1][1][1]; c.v[0][0][0] = 3; int val3 = get();
305 assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 1 : 2)
306 : 3));
307
308 c.v[0] = new int[1][1]; c.v[0][0][0] = 4; int val4 = get();
309 assertEquals(val4, (isStableEnabled ? (isServerWithStable ? 1 : 2)
310 : 4));
311
312 c.v[0][0] = new int[1]; c.v[0][0][0] = 5; int val5 = get();
313 assertEquals(val5, (isStableEnabled ? (isServerWithStable ? 1 : 2)
314 : 5));
315 }
316
317 {
318 c.v = new int[1][1][1]; int[] val1 = get1();
319 c.v[0][0] = new int[1]; int[] val2 = get1();
320 assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
321 }
322
323 {
324 c.v = new int[1][1][1]; int[][] val1 = get2();
325 c.v[0] = new int[1][1]; int[][] val2 = get2();
326 assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
327 }
328
329 {
330 c.v = new int[1][1][1]; int[][][] val1 = get3();
331 c.v = new int[1][1][1]; int[][][] val2 = get3();
332 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
333 }
334 }
335 }
336
337 /* ==================================================== */
338
339 static class IntArrayDim4 {
340 public @Stable int[][][][] v;
341
342 public static final IntArrayDim4 c = new IntArrayDim4();
343 public static int get() { return c.v[0][0][0][0]; }
344 public static int[] get1() { return c.v[0][0][0]; }
345 public static int[][] get2() { return c.v[0][0]; }
346 public static int[][][] get3() { return c.v[0]; }
347 public static int[][][][] get4() { return c.v; }
348 public static void test() throws Exception {
349 {
350 c.v = new int[1][1][1][1]; c.v[0][0][0][0] = 1; int val1 = get();
351 c.v[0][0][0][0] = 2; int val2 = get();
352 assertEquals(val1, 1);
353 assertEquals(val2, (isServerWithStable ? 1 : 2));
354
355 c.v = new int[1][1][1][1]; c.v[0][0][0][0] = 3; int val3 = get();
356 assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 1 : 2)
357 : 3));
358
359 c.v[0] = new int[1][1][1]; c.v[0][0][0][0] = 4; int val4 = get();
360 assertEquals(val4, (isStableEnabled ? (isServerWithStable ? 1 : 2)
361 : 4));
362
363 c.v[0][0] = new int[1][1]; c.v[0][0][0][0] = 5; int val5 = get();
364 assertEquals(val5, (isStableEnabled ? (isServerWithStable ? 1 : 2)
365 : 5));
366
367 c.v[0][0][0] = new int[1]; c.v[0][0][0][0] = 6; int val6 = get();
368 assertEquals(val6, (isStableEnabled ? (isServerWithStable ? 1 : 2)
369 : 6));
370 }
371
372 {
373 c.v = new int[1][1][1][1]; int[] val1 = get1();
374 c.v[0][0][0] = new int[1]; int[] val2 = get1();
375 assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
376 }
377
378 {
379 c.v = new int[1][1][1][1]; int[][] val1 = get2();
380 c.v[0][0] = new int[1][1]; int[][] val2 = get2();
381 assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
382 }
383
384 {
385 c.v = new int[1][1][1][1]; int[][][] val1 = get3();
386 c.v[0] = new int[1][1][1]; int[][][] val2 = get3();
387 assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
388 }
389
390 {
391 c.v = new int[1][1][1][1]; int[][][][] val1 = get4();
392 c.v = new int[1][1][1][1]; int[][][][] val2 = get4();
393 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
394 }
395 }
396 }
397
398 /* ==================================================== */
399 // Dynamic Dim is higher than static
400 static class ObjectArrayLowerDim0 {
401 public @Stable Object v;
402
403 public static final ObjectArrayLowerDim0 c = new ObjectArrayLowerDim0();
404 public static int get() { return ((int[])c.v)[0]; }
405 public static int[] get1() { return (int[])c.v; }
406
407 public static void test() throws Exception {
408 {
409 c.v = new int[1]; ((int[])c.v)[0] = 1; int val1 = get();
410 ((int[])c.v)[0] = 2; int val2 = get();
411
412 assertEquals(val1, 1);
413 assertEquals(val2, 2);
414 }
415
416 {
417 c.v = new int[1]; int[] val1 = get1();
418 c.v = new int[1]; int[] val2 = get1();
419 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
420 }
421 }
422 }
423
424 /* ==================================================== */
425
426 static class ObjectArrayLowerDim1 {
427 public @Stable Object[] v;
428
429 public static final ObjectArrayLowerDim1 c = new ObjectArrayLowerDim1();
430 public static int get() { return ((int[][])c.v)[0][0]; }
431 public static int[] get1() { return (int[])(c.v[0]); }
432 public static Object[] get2() { return c.v; }
433
434 public static void test() throws Exception {
435 {
436 c.v = new int[1][1]; ((int[][])c.v)[0][0] = 1; int val1 = get();
437 ((int[][])c.v)[0][0] = 2; int val2 = get();
438
439 assertEquals(val1, 1);
440 assertEquals(val2, 2);
441 }
442
443 {
444 c.v = new int[1][1]; c.v[0] = new int[0]; int[] val1 = get1();
445 c.v[0] = new int[0]; int[] val2 = get1();
446
447 assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
448 }
449
450 {
451 c.v = new int[0][0]; Object[] val1 = get2();
452 c.v = new int[0][0]; Object[] val2 = get2();
453
454 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
455 }
456 }
457 }
458
459 /* ==================================================== */
460
461 static class ObjectArrayLowerDim2 {
462 public @Stable Object[][] v;
463
464 public static final ObjectArrayLowerDim2 c = new ObjectArrayLowerDim2();
465 public static int get() { return ((int[][][])c.v)[0][0][0]; }
466 public static int[] get1() { return (int[])(c.v[0][0]); }
467 public static int[][] get2() { return (int[][])(c.v[0]); }
468 public static Object[][] get3() { return c.v; }
469
470 public static void test() throws Exception {
471 {
472 c.v = new int[1][1][1]; ((int[][][])c.v)[0][0][0] = 1; int val1 = get();
473 ((int[][][])c.v)[0][0][0] = 2; int val2 = get();
474
475 assertEquals(val1, 1);
476 assertEquals(val2, 2);
477 }
478
479 {
480 c.v = new int[1][1][1]; c.v[0][0] = new int[0]; int[] val1 = get1();
481 c.v[0][0] = new int[0]; int[] val2 = get1();
482
483 assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
484 }
485
486 {
487 c.v = new int[1][1][1]; c.v[0] = new int[0][0]; int[][] val1 = get2();
488 c.v[0] = new int[0][0]; int[][] val2 = get2();
489
490 assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
491 }
492
493 {
494 c.v = new int[0][0][0]; Object[][] val1 = get3();
495 c.v = new int[0][0][0]; Object[][] val2 = get3();
496
497 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
498 }
499 }
500 }
501
502 /* ==================================================== */
503
504 static class NestedStableField {
505 static class A {
506 public @Stable int a;
507
508 }
509 public @Stable A v;
510
511 public static final NestedStableField c = new NestedStableField();
512 public static A get() { return c.v; }
513 public static int get1() { return get().a; }
514
515 public static void test() throws Exception {
516 {
517 c.v = new A(); c.v.a = 1; A val1 = get();
518 c.v.a = 2; A val2 = get();
519
520 assertEquals(val1.a, 2);
521 assertEquals(val2.a, 2);
522 }
523
524 {
525 c.v = new A(); c.v.a = 1; int val1 = get1();
526 c.v.a = 2; int val2 = get1();
527 c.v = new A(); c.v.a = 3; int val3 = get1();
528
529 assertEquals(val1, 1);
530 assertEquals(val2, (isStableEnabled ? 1 : 2));
531 assertEquals(val3, (isStableEnabled ? 1 : 3));
532 }
533 }
534 }
535
536 /* ==================================================== */
537
538 static class NestedStableField1 {
539 static class A {
540 public @Stable int a;
541 public @Stable A next;
542 }
543 public @Stable A v;
544
545 public static final NestedStableField1 c = new NestedStableField1();
546 public static A get() { return c.v.next.next.next.next.next.next.next; }
547 public static int get1() { return get().a; }
548
549 public static void test() throws Exception {
550 {
551 c.v = new A(); c.v.next = new A(); c.v.next.next = c.v;
552 c.v.a = 1; c.v.next.a = 1; A val1 = get();
553 c.v.a = 2; c.v.next.a = 2; A val2 = get();
554
555 assertEquals(val1.a, 2);
556 assertEquals(val2.a, 2);
557 }
558
559 {
560 c.v = new A(); c.v.next = c.v;
561 c.v.a = 1; int val1 = get1();
562 c.v.a = 2; int val2 = get1();
563 c.v = new A(); c.v.next = c.v;
564 c.v.a = 3; int val3 = get1();
565
566 assertEquals(val1, 1);
567 assertEquals(val2, (isStableEnabled ? 1 : 2));
568 assertEquals(val3, (isStableEnabled ? 1 : 3));
569 }
570 }
571 }
572 /* ==================================================== */
573
574 static class NestedStableField2 {
575 static class A {
576 public @Stable int a;
577 public @Stable A left;
578 public A right;
579 }
580
581 public @Stable A v;
582
583 public static final NestedStableField2 c = new NestedStableField2();
584 public static int get() { return c.v.left.left.left.a; }
585 public static int get1() { return c.v.left.left.right.left.a; }
586
587 public static void test() throws Exception {
588 {
589 c.v = new A(); c.v.left = c.v.right = c.v;
590 c.v.a = 1; int val1 = get(); int val2 = get1();
591 c.v.a = 2; int val3 = get(); int val4 = get1();
592
593 assertEquals(val1, 1);
594 assertEquals(val3, (isStableEnabled ? 1 : 2));
595
596 assertEquals(val2, 1);
597 assertEquals(val4, 2);
598 }
599 }
600 }
601
602 /* ==================================================== */
603
604 static class NestedStableField3 {
605 static class A {
606 public @Stable int a;
607 public @Stable A[] left;
608 public A[] right;
609 }
610
611 public @Stable A[] v;
612
613 public static final NestedStableField3 c = new NestedStableField3();
614 public static int get() { return c.v[0].left[1].left[0].left[1].a; }
615 public static int get1() { return c.v[1].left[0].left[1].right[0].left[1].a; }
616
617 public static void test() throws Exception {
618 {
619 A elem = new A();
620 c.v = new A[] { elem, elem }; c.v[0].left = c.v[0].right = c.v;
621 elem.a = 1; int val1 = get(); int val2 = get1();
622 elem.a = 2; int val3 = get(); int val4 = get1();
623
624 assertEquals(val1, 1);
625 assertEquals(val3, (isServerWithStable ? 1 : 2));
626
627 assertEquals(val2, 1);
628 assertEquals(val4, 2);
629 }
630 }
631 }
632
633 /* ==================================================== */
634 // Auxiliary methods
635 static void assertEquals(int i, int j) { if (i != j) throw new AssertionError(i + " != " + j); }
636 static void assertTrue(boolean b) { if (!b) throw new AssertionError(); }
637
638 static boolean failed = false;
639
640 public static void run(Class<?> test) {
641 Throwable ex = null;
642 System.out.print(test.getName()+": ");
643 try {
644 test.getMethod("test").invoke(null);
645 } catch (InvocationTargetException e) {
646 ex = e.getCause();
647 } catch (Throwable e) {
648 ex = e;
649 } finally {
650 if (ex == null) {
651 System.out.println("PASSED");
652 } else {
653 failed = true;
654 System.out.println("FAILED");
655 ex.printStackTrace(System.out);
656 }
657 }
658 }
659 }