TestStableFloat.java revision 9765:d469127da7b0 
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 TestStableFloat
28 * @summary tests on stable fields and arrays
29 * @library /testlibrary /test/lib
30 * @build TestStableFloat StableConfiguration sun.hotspot.WhiteBox
31 * @run main ClassFileInstaller sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission
32 * @run main ClassFileInstaller
33 *           java/lang/invoke/StableConfiguration
34 *           java/lang/invoke/TestStableFloat
35 *           java/lang/invoke/TestStableFloat$FloatStable
36 *           java/lang/invoke/TestStableFloat$StaticFloatStable
37 *           java/lang/invoke/TestStableFloat$VolatileFloatStable
38 *           java/lang/invoke/TestStableFloat$FloatArrayDim1
39 *           java/lang/invoke/TestStableFloat$FloatArrayDim2
40 *           java/lang/invoke/TestStableFloat$FloatArrayDim3
41 *           java/lang/invoke/TestStableFloat$FloatArrayDim4
42 *           java/lang/invoke/TestStableFloat$ObjectArrayLowerDim0
43 *           java/lang/invoke/TestStableFloat$ObjectArrayLowerDim1
44 *           java/lang/invoke/TestStableFloat$NestedStableField
45 *           java/lang/invoke/TestStableFloat$NestedStableField$A
46 *           java/lang/invoke/TestStableFloat$NestedStableField1
47 *           java/lang/invoke/TestStableFloat$NestedStableField1$A
48 *           java/lang/invoke/TestStableFloat$NestedStableField2
49 *           java/lang/invoke/TestStableFloat$NestedStableField2$A
50 *           java/lang/invoke/TestStableFloat$NestedStableField3
51 *           java/lang/invoke/TestStableFloat$NestedStableField3$A
52 *           java/lang/invoke/TestStableFloat$DefaultValue
53 *           java/lang/invoke/TestStableFloat$DefaultStaticValue
54 *           java/lang/invoke/TestStableFloat$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.TestStableFloat
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.TestStableFloat
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.TestStableFloat
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.TestStableFloat
81 *
82 */
83package java.lang.invoke;
84
85import jdk.internal.vm.annotation.Stable;
86
87import java.lang.reflect.InvocationTargetException;
88
89public class TestStableFloat {
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(FloatStable.class);
96        run(DefaultStaticValue.class);
97        run(StaticFloatStable.class);
98        run(VolatileFloatStable.class);
99
100        // @Stable arrays: Dim 1-4
101        run(FloatArrayDim1.class);
102        run(FloatArrayDim2.class);
103        run(FloatArrayDim3.class);
104        run(FloatArrayDim4.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 float v;
126
127        public static final DefaultValue c = new DefaultValue();
128        public static float get() { return c.v; }
129        public static void test() throws Exception {
130                        float val1 = get();
131            c.v = 1.0F; float val2 = get();
132            assertEquals(val1, 0F);
133            assertEquals(val2, 1.0F);
134        }
135    }
136
137    /* ==================================================== */
138
139    static class FloatStable {
140        public @Stable float v;
141
142        public static final FloatStable c = new FloatStable();
143        public static float get() { return c.v; }
144        public static void test() throws Exception {
145            c.v = 1.0F; float val1 = get();
146            c.v = 2.0F; float val2 = get();
147            assertEquals(val1, 1.0F);
148            assertEquals(val2, (isStableEnabled ? 1.0F : 2.0F));
149        }
150    }
151
152    /* ==================================================== */
153
154    static class DefaultStaticValue {
155        public static @Stable float v;
156
157        public static final DefaultStaticValue c = new DefaultStaticValue();
158        public static float get() { return c.v; }
159        public static void test() throws Exception {
160                        float val1 = get();
161            c.v = 1.0F; float val2 = get();
162            assertEquals(val1, 0F);
163            assertEquals(val2, 1.0F);
164        }
165    }
166
167    /* ==================================================== */
168
169    static class StaticFloatStable {
170        public static @Stable float v;
171
172        public static final StaticFloatStable c = new StaticFloatStable();
173        public static float get() { return c.v; }
174        public static void test() throws Exception {
175            c.v = 1.0F; float val1 = get();
176            c.v = 2.0F; float val2 = get();
177            assertEquals(val1, 1.0F);
178            assertEquals(val2, (isStableEnabled ? 1.0F : 2.0F));
179        }
180    }
181
182    /* ==================================================== */
183
184    static class VolatileFloatStable {
185        public @Stable volatile float v;
186
187        public static final VolatileFloatStable c = new VolatileFloatStable();
188        public static float get() { return c.v; }
189        public static void test() throws Exception {
190            c.v = 1.0F; float val1 = get();
191            c.v = 2.0F; float val2 = get();
192            assertEquals(val1, 1.0F);
193            assertEquals(val2, (isStableEnabled ? 1.0F : 2.0F));
194        }
195    }
196
197    /* ==================================================== */
198    // @Stable array == field && all components are stable
199
200    static class FloatArrayDim1 {
201        public @Stable float[] v;
202
203        public static final FloatArrayDim1 c = new FloatArrayDim1();
204        public static float get() { return c.v[0]; }
205        public static float get1() { return c.v[10]; }
206        public static float[] get2() { return c.v; }
207        public static void test() throws Exception {
208            {
209                c.v = new float[1]; c.v[0] = 1.0F; float val1 = get();
210                                    c.v[0] = 2.0F; float val2 = get();
211                assertEquals(val1, 1.0F);
212                assertEquals(val2, (isServerWithStable ? 1.0F : 2.0F));
213
214                c.v = new float[1]; c.v[0] = 3.0F; float val3 = get();
215                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 1.0F : 2.0F)
216                                                    : 3.0F));
217            }
218
219            {
220                c.v = new float[20]; c.v[10] = 1.0F; float val1 = get1();
221                                     c.v[10] = 2.0F; float val2 = get1();
222                assertEquals(val1, 1.0F);
223                assertEquals(val2, (isServerWithStable ? 1.0F : 2.0F));
224
225                c.v = new float[20]; c.v[10] = 3.0F; float val3 = get1();
226                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 1.0F : 2.0F)
227                                                    : 3.0F));
228            }
229
230            {
231                c.v = new float[1]; float[] val1 = get2();
232                c.v = new float[1]; float[] val2 = get2();
233                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
234            }
235        }
236    }
237
238    /* ==================================================== */
239
240    static class FloatArrayDim2 {
241        public @Stable float[][] v;
242
243        public static final FloatArrayDim2 c = new FloatArrayDim2();
244        public static float get() { return c.v[0][0]; }
245        public static float[] get1() { return c.v[0]; }
246        public static float[][] get2() { return c.v; }
247        public static void test() throws Exception {
248            {
249                c.v = new float[1][1]; c.v[0][0] = 1.0F; float val1 = get();
250                                       c.v[0][0] = 2.0F; float val2 = get();
251                assertEquals(val1, 1.0F);
252                assertEquals(val2, (isServerWithStable ? 1.0F : 2.0F));
253
254                c.v = new float[1][1]; c.v[0][0] = 3.0F; float val3 = get();
255                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 1.0F : 2.0F)
256                                                    : 3.0F));
257
258                c.v[0] = new float[1]; c.v[0][0] = 4.0F; float val4 = get();
259                assertEquals(val4, (isStableEnabled ? (isServerWithStable ? 1.0F : 2.0F)
260                                                    : 4.0F));
261            }
262
263            {
264                c.v = new float[1][1]; float[] val1 = get1();
265                c.v[0] = new float[1]; float[] val2 = get1();
266                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
267            }
268
269            {
270                c.v = new float[1][1]; float[][] val1 = get2();
271                c.v = new float[1][1]; float[][] val2 = get2();
272                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
273            }
274        }
275    }
276
277    /* ==================================================== */
278
279    static class FloatArrayDim3 {
280        public @Stable float[][][] v;
281
282        public static final FloatArrayDim3 c = new FloatArrayDim3();
283        public static float get() { return c.v[0][0][0]; }
284        public static float[] get1() { return c.v[0][0]; }
285        public static float[][] get2() { return c.v[0]; }
286        public static float[][][] get3() { return c.v; }
287        public static void test() throws Exception {
288            {
289                c.v = new float[1][1][1]; c.v[0][0][0] = 1.0F; float val1 = get();
290                                          c.v[0][0][0] = 2.0F; float val2 = get();
291                assertEquals(val1, 1.0F);
292                assertEquals(val2, (isServerWithStable ? 1.0F : 2.0F));
293
294                c.v = new float[1][1][1]; c.v[0][0][0] = 3.0F; float val3 = get();
295                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 1.0F : 2.0F)
296                                                    : 3.0F));
297
298                c.v[0] = new float[1][1]; c.v[0][0][0] = 4.0F; float val4 = get();
299                assertEquals(val4, (isStableEnabled ? (isServerWithStable ? 1.0F : 2.0F)
300                                                    : 4.0F));
301
302                c.v[0][0] = new float[1]; c.v[0][0][0] = 5.0F; float val5 = get();
303                assertEquals(val5, (isStableEnabled ? (isServerWithStable ? 1.0F : 2.0F)
304                                                    : 5.0F));
305            }
306
307            {
308                c.v = new float[1][1][1]; float[] val1 = get1();
309                c.v[0][0] = new float[1]; float[] val2 = get1();
310                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
311            }
312
313            {
314                c.v = new float[1][1][1]; float[][] val1 = get2();
315                c.v[0] = new float[1][1]; float[][] val2 = get2();
316                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
317            }
318
319            {
320                c.v = new float[1][1][1]; float[][][] val1 = get3();
321                c.v = new float[1][1][1]; float[][][] val2 = get3();
322                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
323            }
324        }
325    }
326
327    /* ==================================================== */
328
329    static class FloatArrayDim4 {
330        public @Stable float[][][][] v;
331
332        public static final FloatArrayDim4 c = new FloatArrayDim4();
333        public static float get() { return c.v[0][0][0][0]; }
334        public static float[] get1() { return c.v[0][0][0]; }
335        public static float[][] get2() { return c.v[0][0]; }
336        public static float[][][] get3() { return c.v[0]; }
337        public static float[][][][] get4() { return c.v; }
338        public static void test() throws Exception {
339            {
340                c.v = new float[1][1][1][1]; c.v[0][0][0][0] = 1.0F; float val1 = get();
341                                             c.v[0][0][0][0] = 2.0F; float val2 = get();
342                assertEquals(val1, 1.0F);
343                assertEquals(val2, (isServerWithStable ? 1.0F : 2.0F));
344
345                c.v = new float[1][1][1][1]; c.v[0][0][0][0] = 3.0F; float val3 = get();
346                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 1.0F : 2.0F)
347                                                    : 3.0F));
348
349                c.v[0] = new float[1][1][1]; c.v[0][0][0][0] = 4.0F; float val4 = get();
350                assertEquals(val4, (isStableEnabled ? (isServerWithStable ? 1.0F : 2.0F)
351                                                    : 4.0F));
352
353                c.v[0][0] = new float[1][1]; c.v[0][0][0][0] = 5.0F; float val5 = get();
354                assertEquals(val5, (isStableEnabled ? (isServerWithStable ? 1.0F : 2.0F)
355                                                    : 5.0F));
356
357                c.v[0][0][0] = new float[1]; c.v[0][0][0][0] = 6.0F; float val6 = get();
358                assertEquals(val6, (isStableEnabled ? (isServerWithStable ? 1.0F : 2.0F)
359                                                    : 6.0F));
360            }
361
362            {
363                c.v = new float[1][1][1][1]; float[] val1 = get1();
364                c.v[0][0][0] = new float[1]; float[] val2 = get1();
365                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
366            }
367
368            {
369                c.v = new float[1][1][1][1]; float[][] val1 = get2();
370                c.v[0][0] = new float[1][1]; float[][] val2 = get2();
371                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
372            }
373
374            {
375                c.v = new float[1][1][1][1]; float[][][] val1 = get3();
376                c.v[0] = new float[1][1][1]; float[][][] val2 = get3();
377                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
378            }
379
380            {
381                c.v = new float[1][1][1][1]; float[][][][] val1 = get4();
382                c.v = new float[1][1][1][1]; float[][][][] 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 float get() { return ((float[])c.v)[0]; }
395        public static float[] get1() { return (float[])c.v; }
396
397        public static void test() throws Exception {
398            {
399                c.v = new float[1]; ((float[])c.v)[0] = 1.0F; float val1 = get();
400                                    ((float[])c.v)[0] = 2.0F; float val2 = get();
401
402                assertEquals(val1, 1.0F);
403                assertEquals(val2, 2.0F);
404            }
405
406            {
407                c.v = new float[1]; float[] val1 = get1();
408                c.v = new float[1]; float[] 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 float get() { return ((float[][])c.v)[0][0]; }
421        public static float[] get1() { return (float[])(c.v[0]); }
422        public static Object[] get2() { return c.v; }
423
424        public static void test() throws Exception {
425            {
426                c.v = new float[1][1]; ((float[][])c.v)[0][0] = 1.0F; float val1 = get();
427                                       ((float[][])c.v)[0][0] = 2.0F; float val2 = get();
428
429                assertEquals(val1, 1.0F);
430                assertEquals(val2, 2.0F);
431            }
432
433            {
434                c.v = new float[1][1]; c.v[0] = new float[0]; float[] val1 = get1();
435                                       c.v[0] = new float[0]; float[] val2 = get1();
436
437                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
438            }
439
440            {
441                c.v = new float[0][0]; Object[] val1 = get2();
442                c.v = new float[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 float get() { return ((float[][][])c.v)[0][0][0]; }
456        public static float[] get1() { return (float[])(c.v[0][0]); }
457        public static float[][] get2() { return (float[][])(c.v[0]); }
458        public static Object[][] get3() { return c.v; }
459
460        public static void test() throws Exception {
461            {
462                c.v = new float[1][1][1]; ((float[][][])c.v)[0][0][0] = 1.0F; float val1 = get();
463                                          ((float[][][])c.v)[0][0][0] = 2.0F; float val2 = get();
464
465                assertEquals(val1, 1.0F);
466                assertEquals(val2, 2.0F);
467            }
468
469            {
470                c.v = new float[1][1][1]; c.v[0][0] = new float[0]; float[] val1 = get1();
471                                          c.v[0][0] = new float[0]; float[] val2 = get1();
472
473                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
474            }
475
476            {
477                c.v = new float[1][1][1]; c.v[0] = new float[0][0]; float[][] val1 = get2();
478                                          c.v[0] = new float[0][0]; float[][] val2 = get2();
479
480                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
481            }
482
483            {
484                c.v = new float[0][0][0]; Object[][] val1 = get3();
485                c.v = new float[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 float 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 float get1() { return get().a; }
504
505        public static void test() throws Exception {
506            {
507                c.v = new A(); c.v.a = 1.0F; A val1 = get();
508                               c.v.a = 2.0F; A val2 = get();
509
510                assertEquals(val1.a, 2.0F);
511                assertEquals(val2.a, 2.0F);
512            }
513
514            {
515                c.v = new A(); c.v.a = 1.0F; float val1 = get1();
516                               c.v.a = 2.0F; float val2 = get1();
517                c.v = new A(); c.v.a = 3.0F; float val3 = get1();
518
519                assertEquals(val1, 1.0F);
520                assertEquals(val2, (isStableEnabled ? 1.0F : 2.0F));
521                assertEquals(val3, (isStableEnabled ? 1.0F : 3.0F));
522            }
523        }
524    }
525
526    /* ==================================================== */
527
528    static class NestedStableField1 {
529        static class A {
530            public @Stable float 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 float 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 = 1.0F; c.v.next.a = 1.0F; A val1 = get();
543                               c.v.a = 2.0F; c.v.next.a = 2.0F; A val2 = get();
544
545                assertEquals(val1.a, 2.0F);
546                assertEquals(val2.a, 2.0F);
547            }
548
549            {
550                c.v = new A(); c.v.next = c.v;
551                               c.v.a = 1.0F; float val1 = get1();
552                               c.v.a = 2.0F; float val2 = get1();
553                c.v = new A(); c.v.next = c.v;
554                               c.v.a = 3.0F; float val3 = get1();
555
556                assertEquals(val1, 1.0F);
557                assertEquals(val2, (isStableEnabled ? 1.0F : 2.0F));
558                assertEquals(val3, (isStableEnabled ? 1.0F : 3.0F));
559            }
560        }
561    }
562   /* ==================================================== */
563
564    static class NestedStableField2 {
565        static class A {
566            public @Stable float 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 float get() { return c.v.left.left.left.a; }
575        public static float 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 = 1.0F; float val1 = get(); float val2 = get1();
581                               c.v.a = 2.0F; float val3 = get(); float val4 = get1();
582
583                assertEquals(val1, 1.0F);
584                assertEquals(val3, (isStableEnabled ? 1.0F : 2.0F));
585
586                assertEquals(val2, 1.0F);
587                assertEquals(val4, 2.0F);
588            }
589        }
590    }
591
592    /* ==================================================== */
593
594    static class NestedStableField3 {
595        static class A {
596            public @Stable float 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 float get() { return c.v[0].left[1].left[0].left[1].a; }
605        public static float 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 = 1.0F; float val1 = get(); float val2 = get1();
612                               elem.a = 2.0F; float val3 = get(); float val4 = get1();
613
614                assertEquals(val1, 1.0F);
615                assertEquals(val3, (isServerWithStable ? 1.0F : 2.0F));
616
617                assertEquals(val2, 1.0F);
618                assertEquals(val4, 2.0F);
619            }
620        }
621    }
622
623    /* ==================================================== */
624    // Auxiliary methods
625    static void assertEquals(float i, float 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}
650