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1 /* |
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2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 |
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26 /* |
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27 * @test TestStableDouble |
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28 * @summary tests on stable fields and arrays |
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29 * @library /testlibrary |
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30 * @compile -XDignore.symbol.file TestStableDouble.java |
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31 * @run main ClassFileInstaller |
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32 * java/lang/invoke/TestStableDouble |
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33 * java/lang/invoke/TestStableDouble$DoubleStable |
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34 * java/lang/invoke/TestStableDouble$StaticDoubleStable |
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35 * java/lang/invoke/TestStableDouble$VolatileDoubleStable |
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36 * java/lang/invoke/TestStableDouble$DoubleArrayDim1 |
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37 * java/lang/invoke/TestStableDouble$DoubleArrayDim2 |
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38 * java/lang/invoke/TestStableDouble$DoubleArrayDim3 |
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39 * java/lang/invoke/TestStableDouble$DoubleArrayDim4 |
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40 * java/lang/invoke/TestStableDouble$ObjectArrayLowerDim0 |
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41 * java/lang/invoke/TestStableDouble$ObjectArrayLowerDim1 |
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42 * java/lang/invoke/TestStableDouble$NestedStableField |
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43 * java/lang/invoke/TestStableDouble$NestedStableField$A |
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44 * java/lang/invoke/TestStableDouble$NestedStableField1 |
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45 * java/lang/invoke/TestStableDouble$NestedStableField1$A |
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46 * java/lang/invoke/TestStableDouble$NestedStableField2 |
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47 * java/lang/invoke/TestStableDouble$NestedStableField2$A |
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48 * java/lang/invoke/TestStableDouble$NestedStableField3 |
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49 * java/lang/invoke/TestStableDouble$NestedStableField3$A |
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50 * java/lang/invoke/TestStableDouble$DefaultValue |
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51 * java/lang/invoke/TestStableDouble$ObjectArrayLowerDim2 |
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52 * |
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53 * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions |
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54 * -XX:+UnlockDiagnosticVMOptions -XX:+FoldStableValues -XX:+UseCompressedOop |
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55 * -server -XX:-TieredCompilation -Xcomp |
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56 * -XX:CompileOnly=::get,::get1,::get2,::get3,::get4 |
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57 * java.lang.invoke.TestStableDouble |
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58 * |
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59 * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions |
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60 * -XX:+UnlockDiagnosticVMOptions -XX:+FoldStableValues -XX:-UseCompressedOop |
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61 * -server -XX:-TieredCompilation -Xcomp |
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62 * -XX:CompileOnly=::get,::get1,::get2,::get3,::get4 |
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63 * java.lang.invoke.TestStableDouble |
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64 * |
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65 * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions |
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66 * -XX:+UnlockDiagnosticVMOptions -XX:-FoldStableValues -XX:+UseCompressedOop |
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67 * -server -XX:-TieredCompilation -Xcomp |
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68 * -XX:CompileOnly=::get,::get1,::get2,::get3,::get4 |
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69 * java.lang.invoke.TestStableDouble |
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70 * |
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71 * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions |
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72 * -XX:+UnlockDiagnosticVMOptions -XX:-FoldStableValues -XX:-UseCompressedOop |
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73 * -server -XX:-TieredCompilation -Xcomp |
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74 * -XX:CompileOnly=::get,::get1,::get2,::get3,::get4 |
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75 * java.lang.invoke.TestStableDouble |
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76 */ |
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77 package java.lang.invoke; |
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78 |
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79 import com.sun.management.HotSpotDiagnosticMXBean; |
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80 import com.sun.management.VMOption; |
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81 import sun.management.ManagementFactoryHelper; |
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82 import java.lang.reflect.InvocationTargetException; |
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83 |
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84 public class TestStableDouble { |
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85 public static void main(String[] args) throws Exception { |
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86 System.out.println("@Stable enabled: "+isStableEnabled); |
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87 System.out.println(); |
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88 |
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89 run(DefaultValue.class); |
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90 run(DoubleStable.class); |
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91 run(StaticDoubleStable.class); |
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92 run(VolatileDoubleStable.class); |
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93 |
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94 // @Stable arrays: Dim 1-4 |
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95 run(DoubleArrayDim1.class); |
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96 run(DoubleArrayDim2.class); |
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97 run(DoubleArrayDim3.class); |
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98 run(DoubleArrayDim4.class); |
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99 |
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100 // @Stable Object field: dynamic arrays |
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101 run(ObjectArrayLowerDim0.class); |
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102 run(ObjectArrayLowerDim1.class); |
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103 run(ObjectArrayLowerDim2.class); |
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104 |
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105 // Nested @Stable fields |
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106 run(NestedStableField.class); |
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107 run(NestedStableField1.class); |
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108 run(NestedStableField2.class); |
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109 run(NestedStableField3.class); |
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110 |
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111 if (failed) { |
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112 throw new Error("TEST FAILED"); |
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113 } |
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114 } |
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115 |
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116 /* ==================================================== */ |
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117 |
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118 static class DefaultValue { |
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119 public @Stable double v; |
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120 |
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121 public static final DefaultValue c = new DefaultValue(); |
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122 public static double get() { return c.v; } |
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123 public static void test() throws Exception { |
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124 double val1 = get(); |
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125 c.v = 1.0; double val2 = get(); |
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126 assertEquals(val1, 0); |
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127 assertEquals(val2, 1.0); |
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128 } |
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129 } |
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130 |
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131 /* ==================================================== */ |
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132 |
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133 static class DoubleStable { |
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134 public @Stable double v; |
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135 |
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136 public static final DoubleStable c = new DoubleStable(); |
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137 public static double get() { return c.v; } |
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138 public static void test() throws Exception { |
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139 c.v = 1.0; double val1 = get(); |
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140 c.v = Double.MAX_VALUE; double val2 = get(); |
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141 assertEquals(val1, 1.0); |
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142 assertEquals(val2, (isStableEnabled ? 1.0 : Double.MAX_VALUE)); |
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143 } |
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144 } |
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145 |
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146 /* ==================================================== */ |
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147 |
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148 static class StaticDoubleStable { |
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149 public static @Stable double v; |
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150 |
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151 public static final StaticDoubleStable c = new StaticDoubleStable(); |
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152 public static double get() { return c.v; } |
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153 public static void test() throws Exception { |
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154 c.v = 1.0; double val1 = get(); |
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155 c.v = Double.MAX_VALUE; double val2 = get(); |
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156 assertEquals(val1, 1.0); |
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157 assertEquals(val2, (isStableEnabled ? 1.0 : Double.MAX_VALUE)); |
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158 } |
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159 } |
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160 |
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161 /* ==================================================== */ |
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162 |
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163 static class VolatileDoubleStable { |
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164 public @Stable double v; |
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165 |
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166 public static final VolatileDoubleStable c = new VolatileDoubleStable(); |
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167 public static double get() { return c.v; } |
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168 public static void test() throws Exception { |
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169 c.v = 1.0; double val1 = get(); |
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170 c.v = Double.MAX_VALUE; double val2 = get(); |
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171 assertEquals(val1, 1.0); |
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172 assertEquals(val2, (isStableEnabled ? 1.0 : Double.MAX_VALUE)); |
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173 } |
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174 } |
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175 |
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176 /* ==================================================== */ |
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177 // @Stable array == field && all components are stable |
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178 |
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179 static class DoubleArrayDim1 { |
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180 public @Stable double[] v; |
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181 |
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182 public static final DoubleArrayDim1 c = new DoubleArrayDim1(); |
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183 public static double get() { return c.v[0]; } |
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184 public static double get1() { return c.v[10]; } |
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185 public static double[] get2() { return c.v; } |
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186 public static void test() throws Exception { |
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187 { |
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188 c.v = new double[1]; c.v[0] = 1.0; double val1 = get(); |
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189 c.v[0] = 2.0; double val2 = get(); |
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190 assertEquals(val1, 1.0); |
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191 assertEquals(val2, (isStableEnabled ? 1.0 : 2.0)); |
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192 |
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193 c.v = new double[1]; c.v[0] = 3.0; double val3 = get(); |
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194 assertEquals(val3, (isStableEnabled ? 1.0 : 3.0)); |
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195 } |
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196 |
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197 { |
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198 c.v = new double[20]; c.v[10] = 1.0; double val1 = get1(); |
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199 c.v[10] = 2.0; double val2 = get1(); |
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200 assertEquals(val1, 1.0); |
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201 assertEquals(val2, (isStableEnabled ? 1.0 : 2.0)); |
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202 |
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203 c.v = new double[20]; c.v[10] = 3.0; double val3 = get1(); |
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204 assertEquals(val3, (isStableEnabled ? 1.0 : 3.0)); |
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205 } |
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206 |
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207 { |
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208 c.v = new double[1]; double[] val1 = get2(); |
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209 c.v = new double[1]; double[] val2 = get2(); |
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210 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); |
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211 } |
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212 } |
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213 } |
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214 |
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215 /* ==================================================== */ |
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216 |
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217 static class DoubleArrayDim2 { |
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218 public @Stable double[][] v; |
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219 |
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220 public static final DoubleArrayDim2 c = new DoubleArrayDim2(); |
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221 public static double get() { return c.v[0][0]; } |
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222 public static double[] get1() { return c.v[0]; } |
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223 public static double[][] get2() { return c.v; } |
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224 public static void test() throws Exception { |
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225 { |
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226 c.v = new double[1][1]; c.v[0][0] = 1.0; double val1 = get(); |
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227 c.v[0][0] = 2.0; double val2 = get(); |
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228 assertEquals(val1, 1.0); |
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229 assertEquals(val2, (isStableEnabled ? 1.0 : 2.0)); |
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230 |
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231 c.v = new double[1][1]; c.v[0][0] = 3.0; double val3 = get(); |
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232 assertEquals(val3, (isStableEnabled ? 1.0 : 3.0)); |
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233 |
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234 c.v[0] = new double[1]; c.v[0][0] = 4.0; double val4 = get(); |
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235 assertEquals(val4, (isStableEnabled ? 1.0 : 4.0)); |
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236 } |
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237 |
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238 { |
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239 c.v = new double[1][1]; double[] val1 = get1(); |
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240 c.v[0] = new double[1]; double[] val2 = get1(); |
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241 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); |
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242 } |
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243 |
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244 { |
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245 c.v = new double[1][1]; double[][] val1 = get2(); |
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246 c.v = new double[1][1]; double[][] val2 = get2(); |
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247 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); |
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248 } |
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249 } |
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250 } |
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251 |
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252 /* ==================================================== */ |
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253 |
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254 static class DoubleArrayDim3 { |
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255 public @Stable double[][][] v; |
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256 |
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257 public static final DoubleArrayDim3 c = new DoubleArrayDim3(); |
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258 public static double get() { return c.v[0][0][0]; } |
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259 public static double[] get1() { return c.v[0][0]; } |
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260 public static double[][] get2() { return c.v[0]; } |
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261 public static double[][][] get3() { return c.v; } |
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262 public static void test() throws Exception { |
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263 { |
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264 c.v = new double[1][1][1]; c.v[0][0][0] = 1.0; double val1 = get(); |
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265 c.v[0][0][0] = 2.0; double val2 = get(); |
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266 assertEquals(val1, 1.0); |
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267 assertEquals(val2, (isStableEnabled ? 1.0 : 2.0)); |
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268 |
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269 c.v = new double[1][1][1]; c.v[0][0][0] = 3.0; double val3 = get(); |
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270 assertEquals(val3, (isStableEnabled ? 1.0 : 3.0)); |
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271 |
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272 c.v[0] = new double[1][1]; c.v[0][0][0] = 4.0; double val4 = get(); |
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273 assertEquals(val4, (isStableEnabled ? 1.0 : 4.0)); |
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274 |
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275 c.v[0][0] = new double[1]; c.v[0][0][0] = 5.0; double val5 = get(); |
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276 assertEquals(val5, (isStableEnabled ? 1.0 : 5.0)); |
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277 } |
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278 |
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279 { |
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280 c.v = new double[1][1][1]; double[] val1 = get1(); |
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281 c.v[0][0] = new double[1]; double[] val2 = get1(); |
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282 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); |
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283 } |
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284 |
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285 { |
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286 c.v = new double[1][1][1]; double[][] val1 = get2(); |
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287 c.v[0] = new double[1][1]; double[][] val2 = get2(); |
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288 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); |
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289 } |
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290 |
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291 { |
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292 c.v = new double[1][1][1]; double[][][] val1 = get3(); |
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293 c.v = new double[1][1][1]; double[][][] val2 = get3(); |
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294 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); |
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295 } |
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296 } |
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297 } |
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298 |
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299 /* ==================================================== */ |
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300 |
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301 static class DoubleArrayDim4 { |
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302 public @Stable double[][][][] v; |
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303 |
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304 public static final DoubleArrayDim4 c = new DoubleArrayDim4(); |
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305 public static double get() { return c.v[0][0][0][0]; } |
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306 public static double[] get1() { return c.v[0][0][0]; } |
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307 public static double[][] get2() { return c.v[0][0]; } |
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308 public static double[][][] get3() { return c.v[0]; } |
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309 public static double[][][][] get4() { return c.v; } |
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310 public static void test() throws Exception { |
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311 { |
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312 c.v = new double[1][1][1][1]; c.v[0][0][0][0] = 1.0; double val1 = get(); |
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313 c.v[0][0][0][0] = 2.0; double val2 = get(); |
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314 assertEquals(val1, 1.0); |
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315 assertEquals(val2, (isStableEnabled ? 1.0 : 2.0)); |
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316 |
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317 c.v = new double[1][1][1][1]; c.v[0][0][0][0] = 3.0; double val3 = get(); |
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318 assertEquals(val3, (isStableEnabled ? 1.0 : 3.0)); |
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319 |
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320 c.v[0] = new double[1][1][1]; c.v[0][0][0][0] = 4.0; double val4 = get(); |
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321 assertEquals(val4, (isStableEnabled ? 1.0 : 4.0)); |
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322 |
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323 c.v[0][0] = new double[1][1]; c.v[0][0][0][0] = 5.0; double val5 = get(); |
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324 assertEquals(val5, (isStableEnabled ? 1.0 : 5.0)); |
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325 |
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326 c.v[0][0][0] = new double[1]; c.v[0][0][0][0] = 6.0; double val6 = get(); |
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327 assertEquals(val6, (isStableEnabled ? 1.0 : 6.0)); |
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328 } |
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329 |
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330 { |
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331 c.v = new double[1][1][1][1]; double[] val1 = get1(); |
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332 c.v[0][0][0] = new double[1]; double[] val2 = get1(); |
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333 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); |
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334 } |
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335 |
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336 { |
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337 c.v = new double[1][1][1][1]; double[][] val1 = get2(); |
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338 c.v[0][0] = new double[1][1]; double[][] val2 = get2(); |
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339 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); |
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340 } |
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341 |
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342 { |
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343 c.v = new double[1][1][1][1]; double[][][] val1 = get3(); |
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344 c.v[0] = new double[1][1][1]; double[][][] val2 = get3(); |
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345 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); |
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346 } |
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347 |
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348 { |
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349 c.v = new double[1][1][1][1]; double[][][][] val1 = get4(); |
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350 c.v = new double[1][1][1][1]; double[][][][] val2 = get4(); |
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351 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); |
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352 } |
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353 |
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354 } |
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355 } |
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356 |
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357 /* ==================================================== */ |
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358 // Dynamic Dim is higher than static |
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359 |
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360 static class ObjectArrayLowerDim0 { |
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361 public @Stable Object v; |
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362 |
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363 public static final ObjectArrayLowerDim0 c = new ObjectArrayLowerDim0(); |
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364 public static double get() { return ((double[])c.v)[0]; } |
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365 public static double[] get1() { return (double[])c.v; } |
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366 |
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367 public static void test() throws Exception { |
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368 { |
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369 c.v = new double[1]; ((double[])c.v)[0] = 1.0; double val1 = get(); |
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370 ((double[])c.v)[0] = 2.0; double val2 = get(); |
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371 |
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372 assertEquals(val1, 1.0); |
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373 assertEquals(val2, 2.0); |
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374 } |
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375 |
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376 { |
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377 c.v = new double[1]; double[] val1 = get1(); |
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378 c.v = new double[1]; double[] val2 = get1(); |
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379 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); |
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380 } |
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381 } |
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382 } |
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383 |
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384 /* ==================================================== */ |
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385 |
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386 static class ObjectArrayLowerDim1 { |
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387 public @Stable Object[] v; |
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388 |
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389 public static final ObjectArrayLowerDim1 c = new ObjectArrayLowerDim1(); |
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390 public static double get() { return ((double[][])c.v)[0][0]; } |
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391 public static double[] get1() { return (double[])(c.v[0]); } |
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392 public static Object[] get2() { return c.v; } |
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393 |
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394 public static void test() throws Exception { |
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395 { |
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396 c.v = new double[1][1]; ((double[][])c.v)[0][0] = 1.0; double val1 = get(); |
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397 ((double[][])c.v)[0][0] = 2.0; double val2 = get(); |
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398 |
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399 assertEquals(val1, 1.0); |
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400 assertEquals(val2, 2.0); |
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401 } |
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402 |
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403 { |
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404 c.v = new double[1][1]; c.v[0] = new double[0]; double[] val1 = get1(); |
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405 c.v[0] = new double[0]; double[] val2 = get1(); |
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406 |
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407 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); |
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408 } |
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409 |
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410 { |
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411 c.v = new double[0][0]; Object[] val1 = get2(); |
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412 c.v = new double[0][0]; Object[] val2 = get2(); |
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413 |
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414 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); |
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415 } |
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416 } |
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417 } |
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418 |
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419 /* ==================================================== */ |
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420 |
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421 static class ObjectArrayLowerDim2 { |
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422 public @Stable Object[][] v; |
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423 |
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424 public static final ObjectArrayLowerDim2 c = new ObjectArrayLowerDim2(); |
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425 public static double get() { return ((double[][][])c.v)[0][0][0]; } |
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426 public static double[] get1() { return (double[])(c.v[0][0]); } |
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427 public static double[][] get2() { return (double[][])(c.v[0]); } |
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428 public static Object[][] get3() { return c.v; } |
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429 |
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430 public static void test() throws Exception { |
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431 { |
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432 c.v = new double[1][1][1]; ((double[][][])c.v)[0][0][0] = 1.0; double val1 = get(); |
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433 ((double[][][])c.v)[0][0][0] = 2.0; double val2 = get(); |
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434 |
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435 assertEquals(val1, 1.0); |
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436 assertEquals(val2, 2.0); |
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437 } |
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438 |
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439 { |
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440 c.v = new double[1][1][1]; c.v[0][0] = new double[0]; double[] val1 = get1(); |
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441 c.v[0][0] = new double[0]; double[] val2 = get1(); |
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442 |
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443 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); |
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444 } |
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445 |
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446 { |
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447 c.v = new double[1][1][1]; c.v[0] = new double[0][0]; double[][] val1 = get2(); |
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448 c.v[0] = new double[0][0]; double[][] val2 = get2(); |
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449 |
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450 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); |
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451 } |
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452 |
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453 { |
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454 c.v = new double[0][0][0]; Object[][] val1 = get3(); |
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455 c.v = new double[0][0][0]; Object[][] val2 = get3(); |
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456 |
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457 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); |
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458 } |
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459 } |
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460 } |
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461 |
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462 /* ==================================================== */ |
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463 |
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464 static class NestedStableField { |
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465 static class A { |
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466 public @Stable double a; |
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467 |
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468 } |
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469 public @Stable A v; |
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470 |
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471 public static final NestedStableField c = new NestedStableField(); |
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472 public static A get() { return c.v; } |
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473 public static double get1() { return get().a; } |
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474 |
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475 public static void test() throws Exception { |
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476 { |
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477 c.v = new A(); c.v.a = 1.0; A val1 = get(); |
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478 c.v.a = 2.0; A val2 = get(); |
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479 |
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480 assertEquals(val1.a, 2.0); |
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481 assertEquals(val2.a, 2.0); |
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482 } |
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483 |
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484 { |
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485 c.v = new A(); c.v.a = 1.0; double val1 = get1(); |
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486 c.v.a = 2.0; double val2 = get1(); |
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487 c.v = new A(); c.v.a = 3.0; double val3 = get1(); |
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488 |
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489 assertEquals(val1, 1.0); |
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490 assertEquals(val2, (isStableEnabled ? 1.0 : 2.0)); |
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491 assertEquals(val3, (isStableEnabled ? 1.0 : 3.0)); |
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492 } |
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493 } |
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494 } |
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495 |
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496 /* ==================================================== */ |
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497 |
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498 static class NestedStableField1 { |
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499 static class A { |
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500 public @Stable double a; |
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501 public @Stable A next; |
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502 } |
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503 public @Stable A v; |
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504 |
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505 public static final NestedStableField1 c = new NestedStableField1(); |
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506 public static A get() { return c.v.next.next.next.next.next.next.next; } |
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507 public static double get1() { return get().a; } |
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508 |
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509 public static void test() throws Exception { |
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510 { |
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511 c.v = new A(); c.v.next = new A(); c.v.next.next = c.v; |
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512 c.v.a = 1.0; c.v.next.a = 1.0; A val1 = get(); |
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513 c.v.a = 2.0; c.v.next.a = 2.0; A val2 = get(); |
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514 |
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515 assertEquals(val1.a, 2.0); |
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516 assertEquals(val2.a, 2.0); |
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517 } |
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518 |
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519 { |
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520 c.v = new A(); c.v.next = c.v; |
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521 c.v.a = 1.0; double val1 = get1(); |
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522 c.v.a = 2.0; double val2 = get1(); |
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523 c.v = new A(); c.v.next = c.v; |
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524 c.v.a = 3.0; double val3 = get1(); |
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525 |
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526 assertEquals(val1, 1.0); |
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527 assertEquals(val2, (isStableEnabled ? 1.0 : 2.0)); |
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528 assertEquals(val3, (isStableEnabled ? 1.0 : 3.0)); |
|
529 } |
|
530 } |
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531 } |
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532 /* ==================================================== */ |
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533 |
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534 static class NestedStableField2 { |
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535 static class A { |
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536 public @Stable double a; |
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537 public @Stable A left; |
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538 public A right; |
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539 } |
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540 |
|
541 public @Stable A v; |
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542 |
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543 public static final NestedStableField2 c = new NestedStableField2(); |
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544 public static double get() { return c.v.left.left.left.a; } |
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545 public static double get1() { return c.v.left.left.right.left.a; } |
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546 |
|
547 public static void test() throws Exception { |
|
548 { |
|
549 c.v = new A(); c.v.left = c.v.right = c.v; |
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550 c.v.a = 1.0; double val1 = get(); double val2 = get1(); |
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551 c.v.a = 2.0; double val3 = get(); double val4 = get1(); |
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552 |
|
553 assertEquals(val1, 1.0); |
|
554 assertEquals(val3, (isStableEnabled ? 1.0 : 2.0)); |
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555 |
|
556 assertEquals(val2, 1.0); |
|
557 assertEquals(val4, 2.0); |
|
558 } |
|
559 } |
|
560 } |
|
561 |
|
562 /* ==================================================== */ |
|
563 |
|
564 static class NestedStableField3 { |
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565 static class A { |
|
566 public @Stable double a; |
|
567 public @Stable A[] left; |
|
568 public A[] right; |
|
569 } |
|
570 |
|
571 public @Stable A[] v; |
|
572 |
|
573 public static final NestedStableField3 c = new NestedStableField3(); |
|
574 public static double get() { return c.v[0].left[1].left[0].left[1].a; } |
|
575 public static double get1() { return c.v[1].left[0].left[1].right[0].left[1].a; } |
|
576 |
|
577 public static void test() throws Exception { |
|
578 { |
|
579 A elem = new A(); |
|
580 c.v = new A[] { elem, elem }; c.v[0].left = c.v[0].right = c.v; |
|
581 elem.a = 1.0; double val1 = get(); double val2 = get1(); |
|
582 elem.a = 2.0; double val3 = get(); double val4 = get1(); |
|
583 |
|
584 assertEquals(val1, 1.0); |
|
585 assertEquals(val3, (isStableEnabled ? 1.0 : 2.0)); |
|
586 |
|
587 assertEquals(val2, 1.0); |
|
588 assertEquals(val4, 2.0); |
|
589 } |
|
590 } |
|
591 } |
|
592 |
|
593 /* ==================================================== */ |
|
594 // Auxiliary methods |
|
595 static void assertEquals(double i, double j) { if (i != j) throw new AssertionError(i + " != " + j); } |
|
596 static void assertTrue(boolean b) { if (!b) throw new AssertionError(); } |
|
597 |
|
598 static boolean failed = false; |
|
599 |
|
600 public static void run(Class<?> test) { |
|
601 Throwable ex = null; |
|
602 System.out.print(test.getName()+": "); |
|
603 try { |
|
604 test.getMethod("test").invoke(null); |
|
605 } catch (InvocationTargetException e) { |
|
606 ex = e.getCause(); |
|
607 } catch (Throwable e) { |
|
608 ex = e; |
|
609 } finally { |
|
610 if (ex == null) { |
|
611 System.out.println("PASSED"); |
|
612 } else { |
|
613 failed = true; |
|
614 System.out.println("FAILED"); |
|
615 ex.printStackTrace(System.out); |
|
616 } |
|
617 } |
|
618 } |
|
619 |
|
620 static final boolean isStableEnabled; |
|
621 static { |
|
622 HotSpotDiagnosticMXBean diagnostic |
|
623 = ManagementFactoryHelper.getDiagnosticMXBean(); |
|
624 VMOption tmp; |
|
625 try { |
|
626 tmp = diagnostic.getVMOption("FoldStableValues"); |
|
627 } catch (IllegalArgumentException e) { |
|
628 tmp = null; |
|
629 } |
|
630 isStableEnabled = (tmp == null ? false : Boolean.parseBoolean(tmp.getValue())); |
|
631 } |
|
632 } |