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