636 lines
25 KiB
Java
636 lines
25 KiB
Java
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/*
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* Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test TestStableObject
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* @summary tests on stable fields and arrays
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* @library /testlibrary
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* @compile -XDignore.symbol.file TestStableObject.java
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* @run main ClassFileInstaller
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* java/lang/invoke/TestStableObject
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* java/lang/invoke/TestStableObject$ObjectStable
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* java/lang/invoke/TestStableObject$StaticObjectStable
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* java/lang/invoke/TestStableObject$VolatileObjectStable
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* java/lang/invoke/TestStableObject$ObjectArrayDim1
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* java/lang/invoke/TestStableObject$ObjectArrayDim2
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* java/lang/invoke/TestStableObject$ObjectArrayDim3
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* java/lang/invoke/TestStableObject$ObjectArrayDim4
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* java/lang/invoke/TestStableObject$ObjectArrayLowerDim0
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* java/lang/invoke/TestStableObject$ObjectArrayLowerDim1
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* java/lang/invoke/TestStableObject$NestedStableField
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* java/lang/invoke/TestStableObject$NestedStableField$A
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* java/lang/invoke/TestStableObject$NestedStableField1
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* java/lang/invoke/TestStableObject$NestedStableField1$A
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* java/lang/invoke/TestStableObject$NestedStableField2
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* java/lang/invoke/TestStableObject$NestedStableField2$A
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* java/lang/invoke/TestStableObject$NestedStableField3
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* java/lang/invoke/TestStableObject$NestedStableField3$A
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* java/lang/invoke/TestStableObject$Values
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* java/lang/invoke/TestStableObject$DefaultValue
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* java/lang/invoke/TestStableObject$ObjectArrayLowerDim2
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*
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* @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
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* -XX:+UnlockDiagnosticVMOptions -XX:+FoldStableValues -XX:+UseCompressedOop
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* -server -XX:-TieredCompilation -Xcomp
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* -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
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* java.lang.invoke.TestStableObject
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*
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* @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
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* -XX:+UnlockDiagnosticVMOptions -XX:+FoldStableValues -XX:-UseCompressedOop
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* -server -XX:-TieredCompilation -Xcomp
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* -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
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* java.lang.invoke.TestStableObject
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*
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* @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
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* -XX:+UnlockDiagnosticVMOptions -XX:-FoldStableValues -XX:+UseCompressedOop
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* -server -XX:-TieredCompilation -Xcomp
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* -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
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* java.lang.invoke.TestStableObject
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*
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* @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
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* -XX:+UnlockDiagnosticVMOptions -XX:-FoldStableValues -XX:-UseCompressedOop
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* -server -XX:-TieredCompilation -Xcomp
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* -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
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* java.lang.invoke.TestStableObject
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*/
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package java.lang.invoke;
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import com.sun.management.HotSpotDiagnosticMXBean;
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import com.sun.management.VMOption;
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import sun.management.ManagementFactoryHelper;
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import java.lang.reflect.InvocationTargetException;
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public class TestStableObject {
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public static void main(String[] args) throws Exception {
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System.out.println("@Stable enabled: "+isStableEnabled);
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System.out.println();
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run(DefaultValue.class);
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run(ObjectStable.class);
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run(StaticObjectStable.class);
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run(VolatileObjectStable.class);
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// @Stable arrays: Dim 1-4
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run(ObjectArrayDim1.class);
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run(ObjectArrayDim2.class);
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run(ObjectArrayDim3.class);
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run(ObjectArrayDim4.class);
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// @Stable Object field: dynamic arrays
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run(ObjectArrayLowerDim0.class);
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run(ObjectArrayLowerDim1.class);
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run(ObjectArrayLowerDim2.class);
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// Nested @Stable fields
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run(NestedStableField.class);
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run(NestedStableField1.class);
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run(NestedStableField2.class);
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run(NestedStableField3.class);
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if (failed) {
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throw new Error("TEST FAILED");
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}
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}
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/* ==================================================== */
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enum Values {A, B, C, D, E, F}
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static class DefaultValue {
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public @Stable Object v;
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public static final DefaultValue c = new DefaultValue();
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public static Object get() { return c.v; }
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public static void test() throws Exception {
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Object val1 = get();
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c.v = Values.A; Object val2 = get();
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assertEquals(val1, null);
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assertEquals(val2, Values.A);
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}
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}
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/* ==================================================== */
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static class ObjectStable {
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public @Stable Values v;
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public static final ObjectStable c = new ObjectStable ();
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public static Values get() { return c.v; }
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public static void test() throws Exception {
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c.v = Values.A; Values val1 = get();
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c.v = Values.B; Values val2 = get();
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assertEquals(val1, Values.A);
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assertEquals(val2, (isStableEnabled ? Values.A : Values.B));
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}
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}
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/* ==================================================== */
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static class StaticObjectStable {
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public static @Stable Values v;
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public static final ObjectStable c = new ObjectStable ();
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public static Values get() { return c.v; }
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public static void test() throws Exception {
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c.v = Values.A; Values val1 = get();
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c.v = Values.B; Values val2 = get();
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assertEquals(val1, Values.A);
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assertEquals(val2, (isStableEnabled ? Values.A : Values.B));
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}
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}
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/* ==================================================== */
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static class VolatileObjectStable {
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public @Stable volatile Values v;
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public static final VolatileObjectStable c = new VolatileObjectStable ();
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public static Values get() { return c.v; }
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public static void test() throws Exception {
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c.v = Values.A; Values val1 = get();
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c.v = Values.B; Values val2 = get();
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assertEquals(val1, Values.A);
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assertEquals(val2, (isStableEnabled ? Values.A : Values.B));
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}
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}
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/* ==================================================== */
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// @Stable array == field && all components are stable
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static class ObjectArrayDim1 {
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public @Stable Object[] v;
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public static final ObjectArrayDim1 c = new ObjectArrayDim1();
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public static Object get() { return c.v[0]; }
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public static Object get1() { return c.v[10]; }
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public static Object[] get2() { return c.v; }
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public static void test() throws Exception {
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{
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c.v = new Object[1]; c.v[0] = Values.A; Object val1 = get();
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c.v[0] = Values.B; Object val2 = get();
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assertEquals(val1, Values.A);
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assertEquals(val2, (isStableEnabled ? Values.A : Values.B));
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c.v = new Object[1]; c.v[0] = Values.C; Object val3 = get();
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assertEquals(val3, (isStableEnabled ? Values.A : Values.C));
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}
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{
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c.v = new Object[20]; c.v[10] = Values.A; Object val1 = get1();
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c.v[10] = Values.B; Object val2 = get1();
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assertEquals(val1, Values.A);
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assertEquals(val2, (isStableEnabled ? Values.A : Values.B));
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c.v = new Object[20]; c.v[10] = Values.C; Object val3 = get1();
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assertEquals(val3, (isStableEnabled ? Values.A : Values.C));
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}
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{
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c.v = new Object[1]; Object[] val1 = get2();
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c.v = new Object[1]; Object[] val2 = get2();
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assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
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}
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}
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}
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/* ==================================================== */
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static class ObjectArrayDim2 {
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public @Stable Object[][] v;
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public static final ObjectArrayDim2 c = new ObjectArrayDim2();
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public static Object get() { return c.v[0][0]; }
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public static Object[] get1() { return c.v[0]; }
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public static Object[][] get2() { return c.v; }
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public static void test() throws Exception {
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{
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c.v = new Object[1][1]; c.v[0][0] = Values.A; Object val1 = get();
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c.v[0][0] = Values.B; Object val2 = get();
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assertEquals(val1, Values.A);
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assertEquals(val2, (isStableEnabled ? Values.A : Values.B));
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c.v = new Object[1][1]; c.v[0][0] = Values.C; Object val3 = get();
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assertEquals(val3, (isStableEnabled ? Values.A : Values.C));
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c.v[0] = new Object[1]; c.v[0][0] = Values.D; Object val4 = get();
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assertEquals(val4, (isStableEnabled ? Values.A : Values.D));
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}
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{
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c.v = new Object[1][1]; Object[] val1 = get1();
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c.v[0] = new Object[1]; Object[] val2 = get1();
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assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
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}
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{
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c.v = new Object[1][1]; Object[][] val1 = get2();
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c.v = new Object[1][1]; Object[][] val2 = get2();
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assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
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}
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}
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}
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/* ==================================================== */
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static class ObjectArrayDim3 {
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public @Stable Object[][][] v;
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public static final ObjectArrayDim3 c = new ObjectArrayDim3();
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public static Object get() { return c.v[0][0][0]; }
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public static Object[] get1() { return c.v[0][0]; }
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public static Object[][] get2() { return c.v[0]; }
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public static Object[][][] get3() { return c.v; }
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public static void test() throws Exception {
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{
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c.v = new Object[1][1][1]; c.v[0][0][0] = Values.A; Object val1 = get();
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c.v[0][0][0] = Values.B; Object val2 = get();
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assertEquals(val1, Values.A);
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assertEquals(val2, (isStableEnabled ? Values.A : Values.B));
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c.v = new Object[1][1][1]; c.v[0][0][0] = Values.C; Object val3 = get();
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assertEquals(val3, (isStableEnabled ? Values.A : Values.C));
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c.v[0] = new Object[1][1]; c.v[0][0][0] = Values.D; Object val4 = get();
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assertEquals(val4, (isStableEnabled ? Values.A : Values.D));
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c.v[0][0] = new Object[1]; c.v[0][0][0] = Values.E; Object val5 = get();
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assertEquals(val5, (isStableEnabled ? Values.A : Values.E));
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}
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{
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c.v = new Object[1][1][1]; Object[] val1 = get1();
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c.v[0][0] = new Object[1]; Object[] val2 = get1();
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assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
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}
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{
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c.v = new Object[1][1][1]; Object[][] val1 = get2();
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c.v[0] = new Object[1][1]; Object[][] val2 = get2();
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assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
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}
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{
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c.v = new Object[1][1][1]; Object[][][] val1 = get3();
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c.v = new Object[1][1][1]; Object[][][] val2 = get3();
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assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
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}
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}
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}
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/* ==================================================== */
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static class ObjectArrayDim4 {
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public @Stable Object[][][][] v;
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public static final ObjectArrayDim4 c = new ObjectArrayDim4();
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public static Object get() { return c.v[0][0][0][0]; }
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public static Object[] get1() { return c.v[0][0][0]; }
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public static Object[][] get2() { return c.v[0][0]; }
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public static Object[][][] get3() { return c.v[0]; }
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public static Object[][][][] get4() { return c.v; }
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public static void test() throws Exception {
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{
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c.v = new Object[1][1][1][1]; c.v[0][0][0][0] = Values.A; Object val1 = get();
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c.v[0][0][0][0] = Values.B; Object val2 = get();
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assertEquals(val1, Values.A);
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assertEquals(val2, (isStableEnabled ? Values.A : Values.B));
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c.v = new Object[1][1][1][1]; c.v[0][0][0][0] = Values.C; Object val3 = get();
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assertEquals(val3, (isStableEnabled ? Values.A : Values.C));
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c.v[0] = new Object[1][1][1]; c.v[0][0][0][0] = Values.D; Object val4 = get();
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assertEquals(val4, (isStableEnabled ? Values.A : Values.D));
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c.v[0][0] = new Object[1][1]; c.v[0][0][0][0] = Values.E; Object val5 = get();
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assertEquals(val5, (isStableEnabled ? Values.A : Values.E));
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c.v[0][0][0] = new Object[1]; c.v[0][0][0][0] = Values.F; Object val6 = get();
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assertEquals(val6, (isStableEnabled ? Values.A : Values.F));
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}
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|
||
|
|
{
|
||
|
|
c.v = new Object[1][1][1][1]; Object[] val1 = get1();
|
||
|
|
c.v[0][0][0] = new Object[1]; Object[] val2 = get1();
|
||
|
|
assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
|
||
|
|
}
|
||
|
|
|
||
|
|
{
|
||
|
|
c.v = new Object[1][1][1][1]; Object[][] val1 = get2();
|
||
|
|
c.v[0][0] = new Object[1][1]; Object[][] val2 = get2();
|
||
|
|
assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
|
||
|
|
}
|
||
|
|
|
||
|
|
{
|
||
|
|
c.v = new Object[1][1][1][1]; Object[][][] val1 = get3();
|
||
|
|
c.v[0] = new Object[1][1][1]; Object[][][] val2 = get3();
|
||
|
|
assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
|
||
|
|
}
|
||
|
|
|
||
|
|
{
|
||
|
|
c.v = new Object[1][1][1][1]; Object[][][][] val1 = get4();
|
||
|
|
c.v = new Object[1][1][1][1]; Object[][][][] val2 = get4();
|
||
|
|
assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* ==================================================== */
|
||
|
|
// Dynamic Dim is higher than static
|
||
|
|
|
||
|
|
static class ObjectArrayLowerDim0 {
|
||
|
|
public @Stable Object v;
|
||
|
|
|
||
|
|
public static final ObjectArrayLowerDim0 c = new ObjectArrayLowerDim0();
|
||
|
|
public static Object get() { return ((Object[])c.v)[0]; }
|
||
|
|
public static Object[] get1() { return (Object[])c.v; }
|
||
|
|
|
||
|
|
public static void test() throws Exception {
|
||
|
|
{
|
||
|
|
c.v = new Object[1]; ((Object[])c.v)[0] = Values.A; Object val1 = get();
|
||
|
|
((Object[])c.v)[0] = Values.B; Object val2 = get();
|
||
|
|
|
||
|
|
assertEquals(val1, Values.A);
|
||
|
|
assertEquals(val2, Values.B);
|
||
|
|
}
|
||
|
|
|
||
|
|
{
|
||
|
|
c.v = new Object[1]; Object[] val1 = get1();
|
||
|
|
c.v = new Object[1]; Object[] val2 = get1();
|
||
|
|
assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* ==================================================== */
|
||
|
|
|
||
|
|
static class ObjectArrayLowerDim1 {
|
||
|
|
public @Stable Object[] v;
|
||
|
|
|
||
|
|
public static final ObjectArrayLowerDim1 c = new ObjectArrayLowerDim1();
|
||
|
|
public static Object get() { return ((Object[][])c.v)[0][0]; }
|
||
|
|
public static Object[] get1() { return (Object[])(c.v[0]); }
|
||
|
|
public static Object[] get2() { return c.v; }
|
||
|
|
|
||
|
|
public static void test() throws Exception {
|
||
|
|
{
|
||
|
|
c.v = new Object[1][1]; ((Object[][])c.v)[0][0] = Values.A; Object val1 = get();
|
||
|
|
((Object[][])c.v)[0][0] = Values.B; Object val2 = get();
|
||
|
|
|
||
|
|
assertEquals(val1, Values.A);
|
||
|
|
assertEquals(val2, Values.B);
|
||
|
|
}
|
||
|
|
|
||
|
|
{
|
||
|
|
c.v = new Object[1][1]; c.v[0] = new Object[0]; Object[] val1 = get1();
|
||
|
|
c.v[0] = new Object[0]; Object[] val2 = get1();
|
||
|
|
|
||
|
|
assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
|
||
|
|
}
|
||
|
|
|
||
|
|
{
|
||
|
|
c.v = new Object[0][0]; Object[] val1 = get2();
|
||
|
|
c.v = new Object[0][0]; Object[] val2 = get2();
|
||
|
|
|
||
|
|
assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* ==================================================== */
|
||
|
|
|
||
|
|
static class ObjectArrayLowerDim2 {
|
||
|
|
public @Stable Object[][] v;
|
||
|
|
|
||
|
|
public static final ObjectArrayLowerDim2 c = new ObjectArrayLowerDim2();
|
||
|
|
public static Object get() { return ((Object[][][])c.v)[0][0][0]; }
|
||
|
|
public static Object[] get1() { return (Object[])(c.v[0][0]); }
|
||
|
|
public static Object[][] get2() { return (Object[][])(c.v[0]); }
|
||
|
|
public static Object[][] get3() { return c.v; }
|
||
|
|
|
||
|
|
public static void test() throws Exception {
|
||
|
|
{
|
||
|
|
c.v = new Object[1][1][1]; ((Object[][][])c.v)[0][0][0] = Values.A; Object val1 = get();
|
||
|
|
((Object[][][])c.v)[0][0][0] = Values.B; Object val2 = get();
|
||
|
|
|
||
|
|
assertEquals(val1, Values.A);
|
||
|
|
assertEquals(val2, Values.B);
|
||
|
|
}
|
||
|
|
|
||
|
|
{
|
||
|
|
c.v = new Object[1][1][1]; c.v[0][0] = new Object[0]; Object[] val1 = get1();
|
||
|
|
c.v[0][0] = new Object[0]; Object[] val2 = get1();
|
||
|
|
|
||
|
|
assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
|
||
|
|
}
|
||
|
|
|
||
|
|
{
|
||
|
|
c.v = new Object[1][1][1]; c.v[0] = new Object[0][0]; Object[][] val1 = get2();
|
||
|
|
c.v[0] = new Object[0][0]; Object[][] val2 = get2();
|
||
|
|
|
||
|
|
assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
|
||
|
|
}
|
||
|
|
|
||
|
|
{
|
||
|
|
c.v = new Object[0][0][0]; Object[][] val1 = get3();
|
||
|
|
c.v = new Object[0][0][0]; Object[][] val2 = get3();
|
||
|
|
|
||
|
|
assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* ==================================================== */
|
||
|
|
|
||
|
|
static class NestedStableField {
|
||
|
|
static class A {
|
||
|
|
public @Stable Object a;
|
||
|
|
|
||
|
|
}
|
||
|
|
public @Stable A v;
|
||
|
|
|
||
|
|
public static final NestedStableField c = new NestedStableField();
|
||
|
|
public static A get() { return c.v; }
|
||
|
|
public static Object get1() { return get().a; }
|
||
|
|
|
||
|
|
public static void test() throws Exception {
|
||
|
|
{
|
||
|
|
c.v = new A(); c.v.a = Values.A; A val1 = get();
|
||
|
|
c.v.a = Values.B; A val2 = get();
|
||
|
|
|
||
|
|
assertEquals(val1.a, Values.B);
|
||
|
|
assertEquals(val2.a, Values.B);
|
||
|
|
}
|
||
|
|
|
||
|
|
{
|
||
|
|
c.v = new A(); c.v.a = Values.A; Object val1 = get1();
|
||
|
|
c.v.a = Values.B; Object val2 = get1();
|
||
|
|
c.v = new A(); c.v.a = Values.C; Object val3 = get1();
|
||
|
|
|
||
|
|
assertEquals(val1, Values.A);
|
||
|
|
assertEquals(val2, (isStableEnabled ? Values.A : Values.B));
|
||
|
|
assertEquals(val3, (isStableEnabled ? Values.A : Values.C));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* ==================================================== */
|
||
|
|
|
||
|
|
static class NestedStableField1 {
|
||
|
|
static class A {
|
||
|
|
public @Stable Object a;
|
||
|
|
public @Stable A next;
|
||
|
|
}
|
||
|
|
public @Stable A v;
|
||
|
|
|
||
|
|
public static final NestedStableField1 c = new NestedStableField1();
|
||
|
|
public static A get() { return c.v.next.next.next.next.next.next.next; }
|
||
|
|
public static Object get1() { return get().a; }
|
||
|
|
|
||
|
|
public static void test() throws Exception {
|
||
|
|
{
|
||
|
|
c.v = new A(); c.v.next = new A(); c.v.next.next = c.v;
|
||
|
|
c.v.a = Values.A; c.v.next.a = Values.A; A val1 = get();
|
||
|
|
c.v.a = Values.B; c.v.next.a = Values.B; A val2 = get();
|
||
|
|
|
||
|
|
assertEquals(val1.a, Values.B);
|
||
|
|
assertEquals(val2.a, Values.B);
|
||
|
|
}
|
||
|
|
|
||
|
|
{
|
||
|
|
c.v = new A(); c.v.next = c.v;
|
||
|
|
c.v.a = Values.A; Object val1 = get1();
|
||
|
|
c.v.a = Values.B; Object val2 = get1();
|
||
|
|
c.v = new A(); c.v.next = c.v;
|
||
|
|
c.v.a = Values.C; Object val3 = get1();
|
||
|
|
|
||
|
|
assertEquals(val1, Values.A);
|
||
|
|
assertEquals(val2, (isStableEnabled ? Values.A : Values.B));
|
||
|
|
assertEquals(val3, (isStableEnabled ? Values.A : Values.C));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
/* ==================================================== */
|
||
|
|
|
||
|
|
static class NestedStableField2 {
|
||
|
|
static class A {
|
||
|
|
public @Stable Object a;
|
||
|
|
public @Stable A left;
|
||
|
|
public A right;
|
||
|
|
}
|
||
|
|
|
||
|
|
public @Stable A v;
|
||
|
|
|
||
|
|
public static final NestedStableField2 c = new NestedStableField2();
|
||
|
|
public static Object get() { return c.v.left.left.left.a; }
|
||
|
|
public static Object get1() { return c.v.left.left.right.left.a; }
|
||
|
|
|
||
|
|
public static void test() throws Exception {
|
||
|
|
{
|
||
|
|
c.v = new A(); c.v.left = c.v.right = c.v;
|
||
|
|
c.v.a = Values.A; Object val1 = get(); Object val2 = get1();
|
||
|
|
c.v.a = Values.B; Object val3 = get(); Object val4 = get1();
|
||
|
|
|
||
|
|
assertEquals(val1, Values.A);
|
||
|
|
assertEquals(val3, (isStableEnabled ? Values.A : Values.B));
|
||
|
|
|
||
|
|
assertEquals(val2, Values.A);
|
||
|
|
assertEquals(val4, Values.B);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* ==================================================== */
|
||
|
|
|
||
|
|
static class NestedStableField3 {
|
||
|
|
static class A {
|
||
|
|
public @Stable Object a;
|
||
|
|
public @Stable A[] left;
|
||
|
|
public A[] right;
|
||
|
|
}
|
||
|
|
|
||
|
|
public @Stable A[] v;
|
||
|
|
|
||
|
|
public static final NestedStableField3 c = new NestedStableField3();
|
||
|
|
public static Object get() { return c.v[0].left[1].left[0].left[1].a; }
|
||
|
|
public static Object get1() { return c.v[1].left[0].left[1].right[0].left[1].a; }
|
||
|
|
|
||
|
|
public static void test() throws Exception {
|
||
|
|
{
|
||
|
|
A elem = new A();
|
||
|
|
c.v = new A[] { elem, elem }; c.v[0].left = c.v[0].right = c.v;
|
||
|
|
elem.a = Values.A; Object val1 = get(); Object val2 = get1();
|
||
|
|
elem.a = Values.B; Object val3 = get(); Object val4 = get1();
|
||
|
|
|
||
|
|
assertEquals(val1, Values.A);
|
||
|
|
assertEquals(val3, (isStableEnabled ? Values.A : Values.B));
|
||
|
|
|
||
|
|
assertEquals(val2, Values.A);
|
||
|
|
assertEquals(val4, Values.B);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* ==================================================== */
|
||
|
|
// Auxiliary methods
|
||
|
|
static void assertEquals(Object i, Object j) { if (i != j) throw new AssertionError(i + " != " + j); }
|
||
|
|
static void assertTrue(boolean b) { if (!b) throw new AssertionError(); }
|
||
|
|
|
||
|
|
static boolean failed = false;
|
||
|
|
|
||
|
|
public static void run(Class<?> test) {
|
||
|
|
Throwable ex = null;
|
||
|
|
System.out.print(test.getName()+": ");
|
||
|
|
try {
|
||
|
|
test.getMethod("test").invoke(null);
|
||
|
|
} catch (InvocationTargetException e) {
|
||
|
|
ex = e.getCause();
|
||
|
|
} catch (Throwable e) {
|
||
|
|
ex = e;
|
||
|
|
} finally {
|
||
|
|
if (ex == null) {
|
||
|
|
System.out.println("PASSED");
|
||
|
|
} else {
|
||
|
|
failed = true;
|
||
|
|
System.out.println("FAILED");
|
||
|
|
ex.printStackTrace(System.out);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static final boolean isStableEnabled;
|
||
|
|
static {
|
||
|
|
HotSpotDiagnosticMXBean diagnostic
|
||
|
|
= ManagementFactoryHelper.getDiagnosticMXBean();
|
||
|
|
VMOption tmp;
|
||
|
|
try {
|
||
|
|
tmp = diagnostic.getVMOption("FoldStableValues");
|
||
|
|
} catch (IllegalArgumentException e) {
|
||
|
|
tmp = null;
|
||
|
|
}
|
||
|
|
isStableEnabled = (tmp == null ? false : Boolean.parseBoolean(tmp.getValue()));
|
||
|
|
}
|
||
|
|
}
|