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comparison test/compiler/stable/TestStableObject.java @ 20199:5fbeae2a02d3

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8043546: C1 optimizes @Stable instance fields with default values Reviewed-by: kvn, jrose
author vlivanov
date Thu, 10 Jul 2014 12:04:43 -0700
parents 248ff38d2950
children
comparison
equal deleted inserted replaced
20198:c49dcaf78a65 20199:5fbeae2a02d3
24 */ 24 */
25 25
26 /* 26 /*
27 * @test TestStableObject 27 * @test TestStableObject
28 * @summary tests on stable fields and arrays 28 * @summary tests on stable fields and arrays
29 * @library /testlibrary 29 * @library /testlibrary /testlibrary/whitebox
30 * @compile -XDignore.symbol.file TestStableObject.java 30 * @build TestStableObject StableConfiguration sun.hotspot.WhiteBox
31 * @run main ClassFileInstaller sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission
31 * @run main ClassFileInstaller 32 * @run main ClassFileInstaller
33 * java/lang/invoke/StableConfiguration
32 * java/lang/invoke/TestStableObject 34 * java/lang/invoke/TestStableObject
33 * java/lang/invoke/TestStableObject$ObjectStable 35 * java/lang/invoke/TestStableObject$ObjectStable
34 * java/lang/invoke/TestStableObject$StaticObjectStable 36 * java/lang/invoke/TestStableObject$StaticObjectStable
35 * java/lang/invoke/TestStableObject$VolatileObjectStable 37 * java/lang/invoke/TestStableObject$VolatileObjectStable
36 * java/lang/invoke/TestStableObject$ObjectArrayDim1 38 * java/lang/invoke/TestStableObject$ObjectArrayDim1
47 * java/lang/invoke/TestStableObject$NestedStableField2$A 49 * java/lang/invoke/TestStableObject$NestedStableField2$A
48 * java/lang/invoke/TestStableObject$NestedStableField3 50 * java/lang/invoke/TestStableObject$NestedStableField3
49 * java/lang/invoke/TestStableObject$NestedStableField3$A 51 * java/lang/invoke/TestStableObject$NestedStableField3$A
50 * java/lang/invoke/TestStableObject$Values 52 * java/lang/invoke/TestStableObject$Values
51 * java/lang/invoke/TestStableObject$DefaultValue 53 * java/lang/invoke/TestStableObject$DefaultValue
54 * java/lang/invoke/TestStableObject$DefaultStaticValue
52 * java/lang/invoke/TestStableObject$ObjectArrayLowerDim2 55 * java/lang/invoke/TestStableObject$ObjectArrayLowerDim2
53 * 56 *
54 * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions 57 * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
55 * -XX:+UnlockDiagnosticVMOptions -XX:+FoldStableValues -XX:+UseCompressedOop 58 * -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
56 * -server -XX:-TieredCompilation -Xcomp 59 * -server -XX:-TieredCompilation
60 * -XX:+FoldStableValues
61 * -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
62 * java.lang.invoke.TestStableObject
63 * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
64 * -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
65 * -server -XX:-TieredCompilation
66 * -XX:-FoldStableValues
57 * -XX:CompileOnly=::get,::get1,::get2,::get3,::get4 67 * -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
58 * java.lang.invoke.TestStableObject 68 * java.lang.invoke.TestStableObject
59 * 69 *
60 * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions 70 * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
61 * -XX:+UnlockDiagnosticVMOptions -XX:+FoldStableValues -XX:-UseCompressedOop 71 * -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
62 * -server -XX:-TieredCompilation -Xcomp 72 * -server -XX:+TieredCompilation -XX:TieredStopAtLevel=1
73 * -XX:+FoldStableValues
74 * -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
75 * java.lang.invoke.TestStableObject
76 * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
77 * -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
78 * -server -XX:+TieredCompilation -XX:TieredStopAtLevel=1
79 * -XX:-FoldStableValues
63 * -XX:CompileOnly=::get,::get1,::get2,::get3,::get4 80 * -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
64 * java.lang.invoke.TestStableObject 81 * java.lang.invoke.TestStableObject
65 * 82 *
66 * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions 83 * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
67 * -XX:+UnlockDiagnosticVMOptions -XX:-FoldStableValues -XX:+UseCompressedOop 84 * -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
68 * -server -XX:-TieredCompilation -Xcomp 85 * -client -XX:-TieredCompilation
86 * -XX:+FoldStableValues
69 * -XX:CompileOnly=::get,::get1,::get2,::get3,::get4 87 * -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
70 * java.lang.invoke.TestStableObject 88 * java.lang.invoke.TestStableObject
71 *
72 * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions 89 * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
73 * -XX:+UnlockDiagnosticVMOptions -XX:-FoldStableValues -XX:-UseCompressedOop 90 * -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
74 * -server -XX:-TieredCompilation -Xcomp 91 * -client -XX:-TieredCompilation
92 * -XX:-FoldStableValues
75 * -XX:CompileOnly=::get,::get1,::get2,::get3,::get4 93 * -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
76 * java.lang.invoke.TestStableObject 94 * java.lang.invoke.TestStableObject
77 */ 95 */
78 package java.lang.invoke; 96 package java.lang.invoke;
79 97
80 import com.sun.management.HotSpotDiagnosticMXBean;
81 import com.sun.management.VMOption;
82 import sun.management.ManagementFactoryHelper;
83 import java.lang.reflect.InvocationTargetException; 98 import java.lang.reflect.InvocationTargetException;
84 99
85 public class TestStableObject { 100 public class TestStableObject {
101 static final boolean isStableEnabled = StableConfiguration.isStableEnabled;
102 static final boolean isServerWithStable = StableConfiguration.isServerWithStable;
103
86 public static void main(String[] args) throws Exception { 104 public static void main(String[] args) throws Exception {
87 System.out.println("@Stable enabled: "+isStableEnabled);
88 System.out.println();
89
90 run(DefaultValue.class); 105 run(DefaultValue.class);
91 run(ObjectStable.class); 106 run(ObjectStable.class);
107 run(DefaultStaticValue.class);
92 run(StaticObjectStable.class); 108 run(StaticObjectStable.class);
93 run(VolatileObjectStable.class); 109 run(VolatileObjectStable.class);
94 110
95 // @Stable arrays: Dim 1-4 111 // @Stable arrays: Dim 1-4
96 run(ObjectArrayDim1.class); 112 run(ObjectArrayDim1.class);
146 } 162 }
147 } 163 }
148 164
149 /* ==================================================== */ 165 /* ==================================================== */
150 166
167 static class DefaultStaticValue {
168 public static @Stable Object v;
169
170 public static final DefaultStaticValue c = new DefaultStaticValue();
171 public static Object get() { return c.v; }
172 public static void test() throws Exception {
173 Object val1 = get();
174 c.v = Values.A; Object val2 = get();
175 assertEquals(val1, null);
176 assertEquals(val2, Values.A);
177 }
178 }
179
180 /* ==================================================== */
181
151 static class StaticObjectStable { 182 static class StaticObjectStable {
152 public static @Stable Values v; 183 public static @Stable Values v;
153 184
154 public static final ObjectStable c = new ObjectStable (); 185 public static final ObjectStable c = new ObjectStable ();
155 public static Values get() { return c.v; } 186 public static Values get() { return c.v; }
189 public static void test() throws Exception { 220 public static void test() throws Exception {
190 { 221 {
191 c.v = new Object[1]; c.v[0] = Values.A; Object val1 = get(); 222 c.v = new Object[1]; c.v[0] = Values.A; Object val1 = get();
192 c.v[0] = Values.B; Object val2 = get(); 223 c.v[0] = Values.B; Object val2 = get();
193 assertEquals(val1, Values.A); 224 assertEquals(val1, Values.A);
194 assertEquals(val2, (isStableEnabled ? Values.A : Values.B)); 225 assertEquals(val2, (isServerWithStable ? Values.A : Values.B));
195 226
196 c.v = new Object[1]; c.v[0] = Values.C; Object val3 = get(); 227 c.v = new Object[1]; c.v[0] = Values.C; Object val3 = get();
197 assertEquals(val3, (isStableEnabled ? Values.A : Values.C)); 228 assertEquals(val3, (isStableEnabled ? (isServerWithStable ? Values.A : Values.B)
229 : Values.C));
198 } 230 }
199 231
200 { 232 {
201 c.v = new Object[20]; c.v[10] = Values.A; Object val1 = get1(); 233 c.v = new Object[20]; c.v[10] = Values.A; Object val1 = get1();
202 c.v[10] = Values.B; Object val2 = get1(); 234 c.v[10] = Values.B; Object val2 = get1();
203 assertEquals(val1, Values.A); 235 assertEquals(val1, Values.A);
204 assertEquals(val2, (isStableEnabled ? Values.A : Values.B)); 236 assertEquals(val2, (isServerWithStable ? Values.A : Values.B));
205 237
206 c.v = new Object[20]; c.v[10] = Values.C; Object val3 = get1(); 238 c.v = new Object[20]; c.v[10] = Values.C; Object val3 = get1();
207 assertEquals(val3, (isStableEnabled ? Values.A : Values.C)); 239 assertEquals(val3, (isStableEnabled ? (isServerWithStable ? Values.A : Values.B)
240 : Values.C));
208 } 241 }
209 242
210 { 243 {
211 c.v = new Object[1]; Object[] val1 = get2(); 244 c.v = new Object[1]; Object[] val1 = get2();
212 c.v = new Object[1]; Object[] val2 = get2(); 245 c.v = new Object[1]; Object[] val2 = get2();
227 public static void test() throws Exception { 260 public static void test() throws Exception {
228 { 261 {
229 c.v = new Object[1][1]; c.v[0][0] = Values.A; Object val1 = get(); 262 c.v = new Object[1][1]; c.v[0][0] = Values.A; Object val1 = get();
230 c.v[0][0] = Values.B; Object val2 = get(); 263 c.v[0][0] = Values.B; Object val2 = get();
231 assertEquals(val1, Values.A); 264 assertEquals(val1, Values.A);
232 assertEquals(val2, (isStableEnabled ? Values.A : Values.B)); 265 assertEquals(val2, (isServerWithStable ? Values.A : Values.B));
233 266
234 c.v = new Object[1][1]; c.v[0][0] = Values.C; Object val3 = get(); 267 c.v = new Object[1][1]; c.v[0][0] = Values.C; Object val3 = get();
235 assertEquals(val3, (isStableEnabled ? Values.A : Values.C)); 268 assertEquals(val3, (isStableEnabled ? (isServerWithStable ? Values.A : Values.B)
269 : Values.C));
236 270
237 c.v[0] = new Object[1]; c.v[0][0] = Values.D; Object val4 = get(); 271 c.v[0] = new Object[1]; c.v[0][0] = Values.D; Object val4 = get();
238 assertEquals(val4, (isStableEnabled ? Values.A : Values.D)); 272 assertEquals(val4, (isStableEnabled ? (isServerWithStable ? Values.A : Values.B)
273 : Values.D));
239 } 274 }
240 275
241 { 276 {
242 c.v = new Object[1][1]; Object[] val1 = get1(); 277 c.v = new Object[1][1]; Object[] val1 = get1();
243 c.v[0] = new Object[1]; Object[] val2 = get1(); 278 c.v[0] = new Object[1]; Object[] val2 = get1();
244 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); 279 assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
245 } 280 }
246 281
247 { 282 {
248 c.v = new Object[1][1]; Object[][] val1 = get2(); 283 c.v = new Object[1][1]; Object[][] val1 = get2();
249 c.v = new Object[1][1]; Object[][] val2 = get2(); 284 c.v = new Object[1][1]; Object[][] val2 = get2();
265 public static void test() throws Exception { 300 public static void test() throws Exception {
266 { 301 {
267 c.v = new Object[1][1][1]; c.v[0][0][0] = Values.A; Object val1 = get(); 302 c.v = new Object[1][1][1]; c.v[0][0][0] = Values.A; Object val1 = get();
268 c.v[0][0][0] = Values.B; Object val2 = get(); 303 c.v[0][0][0] = Values.B; Object val2 = get();
269 assertEquals(val1, Values.A); 304 assertEquals(val1, Values.A);
270 assertEquals(val2, (isStableEnabled ? Values.A : Values.B)); 305 assertEquals(val2, (isServerWithStable ? Values.A : Values.B));
271 306
272 c.v = new Object[1][1][1]; c.v[0][0][0] = Values.C; Object val3 = get(); 307 c.v = new Object[1][1][1]; c.v[0][0][0] = Values.C; Object val3 = get();
273 assertEquals(val3, (isStableEnabled ? Values.A : Values.C)); 308 assertEquals(val3, (isStableEnabled ? (isServerWithStable ? Values.A : Values.B)
309 : Values.C));
274 310
275 c.v[0] = new Object[1][1]; c.v[0][0][0] = Values.D; Object val4 = get(); 311 c.v[0] = new Object[1][1]; c.v[0][0][0] = Values.D; Object val4 = get();
276 assertEquals(val4, (isStableEnabled ? Values.A : Values.D)); 312 assertEquals(val4, (isStableEnabled ? (isServerWithStable ? Values.A : Values.B)
313 : Values.D));
277 314
278 c.v[0][0] = new Object[1]; c.v[0][0][0] = Values.E; Object val5 = get(); 315 c.v[0][0] = new Object[1]; c.v[0][0][0] = Values.E; Object val5 = get();
279 assertEquals(val5, (isStableEnabled ? Values.A : Values.E)); 316 assertEquals(val5, (isStableEnabled ? (isServerWithStable ? Values.A : Values.B)
317 : Values.E));
280 } 318 }
281 319
282 { 320 {
283 c.v = new Object[1][1][1]; Object[] val1 = get1(); 321 c.v = new Object[1][1][1]; Object[] val1 = get1();
284 c.v[0][0] = new Object[1]; Object[] val2 = get1(); 322 c.v[0][0] = new Object[1]; Object[] val2 = get1();
285 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); 323 assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
286 } 324 }
287 325
288 { 326 {
289 c.v = new Object[1][1][1]; Object[][] val1 = get2(); 327 c.v = new Object[1][1][1]; Object[][] val1 = get2();
290 c.v[0] = new Object[1][1]; Object[][] val2 = get2(); 328 c.v[0] = new Object[1][1]; Object[][] val2 = get2();
291 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); 329 assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
292 } 330 }
293 331
294 { 332 {
295 c.v = new Object[1][1][1]; Object[][][] val1 = get3(); 333 c.v = new Object[1][1][1]; Object[][][] val1 = get3();
296 c.v = new Object[1][1][1]; Object[][][] val2 = get3(); 334 c.v = new Object[1][1][1]; Object[][][] val2 = get3();
313 public static void test() throws Exception { 351 public static void test() throws Exception {
314 { 352 {
315 c.v = new Object[1][1][1][1]; c.v[0][0][0][0] = Values.A; Object val1 = get(); 353 c.v = new Object[1][1][1][1]; c.v[0][0][0][0] = Values.A; Object val1 = get();
316 c.v[0][0][0][0] = Values.B; Object val2 = get(); 354 c.v[0][0][0][0] = Values.B; Object val2 = get();
317 assertEquals(val1, Values.A); 355 assertEquals(val1, Values.A);
318 assertEquals(val2, (isStableEnabled ? Values.A : Values.B)); 356 assertEquals(val2, (isServerWithStable ? Values.A : Values.B));
319 357
320 c.v = new Object[1][1][1][1]; c.v[0][0][0][0] = Values.C; Object val3 = get(); 358 c.v = new Object[1][1][1][1]; c.v[0][0][0][0] = Values.C; Object val3 = get();
321 assertEquals(val3, (isStableEnabled ? Values.A : Values.C)); 359 assertEquals(val3, (isStableEnabled ? (isServerWithStable ? Values.A : Values.B)
360 : Values.C));
322 361
323 c.v[0] = new Object[1][1][1]; c.v[0][0][0][0] = Values.D; Object val4 = get(); 362 c.v[0] = new Object[1][1][1]; c.v[0][0][0][0] = Values.D; Object val4 = get();
324 assertEquals(val4, (isStableEnabled ? Values.A : Values.D)); 363 assertEquals(val4, (isStableEnabled ? (isServerWithStable ? Values.A : Values.B)
364 : Values.D));
325 365
326 c.v[0][0] = new Object[1][1]; c.v[0][0][0][0] = Values.E; Object val5 = get(); 366 c.v[0][0] = new Object[1][1]; c.v[0][0][0][0] = Values.E; Object val5 = get();
327 assertEquals(val5, (isStableEnabled ? Values.A : Values.E)); 367 assertEquals(val5, (isStableEnabled ? (isServerWithStable ? Values.A : Values.B)
368 : Values.E));
328 369
329 c.v[0][0][0] = new Object[1]; c.v[0][0][0][0] = Values.F; Object val6 = get(); 370 c.v[0][0][0] = new Object[1]; c.v[0][0][0][0] = Values.F; Object val6 = get();
330 assertEquals(val6, (isStableEnabled ? Values.A : Values.F)); 371 assertEquals(val6, (isStableEnabled ? (isServerWithStable ? Values.A : Values.B)
372 : Values.F));
331 } 373 }
332 374
333 { 375 {
334 c.v = new Object[1][1][1][1]; Object[] val1 = get1(); 376 c.v = new Object[1][1][1][1]; Object[] val1 = get1();
335 c.v[0][0][0] = new Object[1]; Object[] val2 = get1(); 377 c.v[0][0][0] = new Object[1]; Object[] val2 = get1();
336 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); 378 assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
337 } 379 }
338 380
339 { 381 {
340 c.v = new Object[1][1][1][1]; Object[][] val1 = get2(); 382 c.v = new Object[1][1][1][1]; Object[][] val1 = get2();
341 c.v[0][0] = new Object[1][1]; Object[][] val2 = get2(); 383 c.v[0][0] = new Object[1][1]; Object[][] val2 = get2();
342 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); 384 assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
343 } 385 }
344 386
345 { 387 {
346 c.v = new Object[1][1][1][1]; Object[][][] val1 = get3(); 388 c.v = new Object[1][1][1][1]; Object[][][] val1 = get3();
347 c.v[0] = new Object[1][1][1]; Object[][][] val2 = get3(); 389 c.v[0] = new Object[1][1][1]; Object[][][] val2 = get3();
348 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); 390 assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
349 } 391 }
350 392
351 { 393 {
352 c.v = new Object[1][1][1][1]; Object[][][][] val1 = get4(); 394 c.v = new Object[1][1][1][1]; Object[][][][] val1 = get4();
353 c.v = new Object[1][1][1][1]; Object[][][][] val2 = get4(); 395 c.v = new Object[1][1][1][1]; Object[][][][] val2 = get4();
354 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); 396 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
355 } 397 }
356
357 } 398 }
358 } 399 }
359 400
360 /* ==================================================== */ 401 /* ==================================================== */
361 // Dynamic Dim is higher than static 402 // Dynamic Dim is higher than static
362
363 static class ObjectArrayLowerDim0 { 403 static class ObjectArrayLowerDim0 {
364 public @Stable Object v; 404 public @Stable Object v;
365 405
366 public static final ObjectArrayLowerDim0 c = new ObjectArrayLowerDim0(); 406 public static final ObjectArrayLowerDim0 c = new ObjectArrayLowerDim0();
367 public static Object get() { return ((Object[])c.v)[0]; } 407 public static Object get() { return ((Object[])c.v)[0]; }
405 445
406 { 446 {
407 c.v = new Object[1][1]; c.v[0] = new Object[0]; Object[] val1 = get1(); 447 c.v = new Object[1][1]; c.v[0] = new Object[0]; Object[] val1 = get1();
408 c.v[0] = new Object[0]; Object[] val2 = get1(); 448 c.v[0] = new Object[0]; Object[] val2 = get1();
409 449
410 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); 450 assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
411 } 451 }
412 452
413 { 453 {
414 c.v = new Object[0][0]; Object[] val1 = get2(); 454 c.v = new Object[0][0]; Object[] val1 = get2();
415 c.v = new Object[0][0]; Object[] val2 = get2(); 455 c.v = new Object[0][0]; Object[] val2 = get2();
441 481
442 { 482 {
443 c.v = new Object[1][1][1]; c.v[0][0] = new Object[0]; Object[] val1 = get1(); 483 c.v = new Object[1][1][1]; c.v[0][0] = new Object[0]; Object[] val1 = get1();
444 c.v[0][0] = new Object[0]; Object[] val2 = get1(); 484 c.v[0][0] = new Object[0]; Object[] val2 = get1();
445 485
446 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); 486 assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
447 } 487 }
448 488
449 { 489 {
450 c.v = new Object[1][1][1]; c.v[0] = new Object[0][0]; Object[][] val1 = get2(); 490 c.v = new Object[1][1][1]; c.v[0] = new Object[0][0]; Object[][] val1 = get2();
451 c.v[0] = new Object[0][0]; Object[][] val2 = get2(); 491 c.v[0] = new Object[0][0]; Object[][] val2 = get2();
452 492
453 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); 493 assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
454 } 494 }
455 495
456 { 496 {
457 c.v = new Object[0][0][0]; Object[][] val1 = get3(); 497 c.v = new Object[0][0][0]; Object[][] val1 = get3();
458 c.v = new Object[0][0][0]; Object[][] val2 = get3(); 498 c.v = new Object[0][0][0]; Object[][] val2 = get3();
583 c.v = new A[] { elem, elem }; c.v[0].left = c.v[0].right = c.v; 623 c.v = new A[] { elem, elem }; c.v[0].left = c.v[0].right = c.v;
584 elem.a = Values.A; Object val1 = get(); Object val2 = get1(); 624 elem.a = Values.A; Object val1 = get(); Object val2 = get1();
585 elem.a = Values.B; Object val3 = get(); Object val4 = get1(); 625 elem.a = Values.B; Object val3 = get(); Object val4 = get1();
586 626
587 assertEquals(val1, Values.A); 627 assertEquals(val1, Values.A);
588 assertEquals(val3, (isStableEnabled ? Values.A : Values.B)); 628 assertEquals(val3, (isServerWithStable ? Values.A : Values.B));
589 629
590 assertEquals(val2, Values.A); 630 assertEquals(val2, Values.A);
591 assertEquals(val4, Values.B); 631 assertEquals(val4, Values.B);
592 } 632 }
593 } 633 }
617 System.out.println("FAILED"); 657 System.out.println("FAILED");
618 ex.printStackTrace(System.out); 658 ex.printStackTrace(System.out);
619 } 659 }
620 } 660 }
621 } 661 }
622
623 static final boolean isStableEnabled;
624 static {
625 HotSpotDiagnosticMXBean diagnostic
626 = ManagementFactoryHelper.getDiagnosticMXBean();
627 VMOption tmp;
628 try {
629 tmp = diagnostic.getVMOption("FoldStableValues");
630 } catch (IllegalArgumentException e) {
631 tmp = null;
632 }
633 isStableEnabled = (tmp == null ? false : Boolean.parseBoolean(tmp.getValue()));
634 }
635 } 662 }