/* * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package java.lang.invoke; /* * @test TestStableLong * @summary tests on stable fields and arrays * @library /testlibrary * @compile -XDignore.symbol.file TestStableLong.java * @run main ClassFileInstaller * java/lang/invoke/TestStableLong * java/lang/invoke/TestStableLong$LongStable * java/lang/invoke/TestStableLong$StaticLongStable * java/lang/invoke/TestStableLong$VolatileLongStable * java/lang/invoke/TestStableLong$LongArrayDim1 * java/lang/invoke/TestStableLong$LongArrayDim2 * java/lang/invoke/TestStableLong$LongArrayDim3 * java/lang/invoke/TestStableLong$LongArrayDim4 * java/lang/invoke/TestStableLong$ObjectArrayLowerDim0 * java/lang/invoke/TestStableLong$ObjectArrayLowerDim1 * java/lang/invoke/TestStableLong$NestedStableField * java/lang/invoke/TestStableLong$NestedStableField$A * java/lang/invoke/TestStableLong$NestedStableField1 * java/lang/invoke/TestStableLong$NestedStableField1$A * java/lang/invoke/TestStableLong$NestedStableField2 * java/lang/invoke/TestStableLong$NestedStableField2$A * java/lang/invoke/TestStableLong$NestedStableField3 * java/lang/invoke/TestStableLong$NestedStableField3$A * java/lang/invoke/TestStableLong$DefaultValue * java/lang/invoke/TestStableLong$ObjectArrayLowerDim2 * * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions * -XX:+FoldStableValues -XX:+UseCompressedOop * -server -XX:-TieredCompilation -Xcomp * -XX:CompileOnly=::get,::get1,::get2,::get3,::get4 * java.lang.invoke.TestStableLong * * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions * -XX:+FoldStableValues -XX:-UseCompressedOop * -server -XX:-TieredCompilation -Xcomp * -XX:CompileOnly=::get,::get1,::get2,::get3,::get4 * java.lang.invoke.TestStableLong * * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions * -XX:-FoldStableValues -XX:+UseCompressedOop * -server -XX:-TieredCompilation -Xcomp * -XX:CompileOnly=::get,::get1,::get2,::get3,::get4 * java.lang.invoke.TestStableLong * * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions * -XX:-FoldStableValues -XX:-UseCompressedOop * -server -XX:-TieredCompilation -Xcomp * -XX:CompileOnly=::get,::get1,::get2,::get3,::get4 * java.lang.invoke.TestStableLong */ import com.sun.management.HotSpotDiagnosticMXBean; import com.sun.management.VMOption; import sun.management.ManagementFactoryHelper; import java.lang.reflect.InvocationTargetException; public class TestStableLong { public static void main(String[] args) throws Exception { System.out.println("@Stable enabled: "+isStableEnabled); System.out.println(); run(DefaultValue.class); run(LongStable.class); run(StaticLongStable.class); run(VolatileLongStable.class); // @Stable arrays: Dim 1-4 run(LongArrayDim1.class); run(LongArrayDim2.class); run(LongArrayDim3.class); run(LongArrayDim4.class); // @Stable Object field: dynamic arrays run(ObjectArrayLowerDim0.class); run(ObjectArrayLowerDim1.class); run(ObjectArrayLowerDim2.class); // Nested @Stable fields run(NestedStableField.class); run(NestedStableField1.class); run(NestedStableField2.class); run(NestedStableField3.class); if (failed) { throw new Error("TEST FAILED"); } } /* ==================================================== */ static class DefaultValue { public @Stable long v; public static final DefaultValue c = new DefaultValue(); public static long get() { return c.v; } public static void test() throws Exception { long val1 = get(); c.v = 1L; long val2 = get(); assertEquals(val1, 0); assertEquals(val2, 1L); } } /* ==================================================== */ static class LongStable { public @Stable long v; public static final LongStable c = new LongStable(); public static long get() { return c.v; } public static void test() throws Exception { c.v = 5; long val1 = get(); c.v = Long.MAX_VALUE; long val2 = get(); assertEquals(val1, 5); assertEquals(val2, (isStableEnabled ? 5 : Long.MAX_VALUE)); } } /* ==================================================== */ static class StaticLongStable { public static @Stable long v; public static final StaticLongStable c = new StaticLongStable(); public static long get() { return c.v; } public static void test() throws Exception { c.v = 5; long val1 = get(); c.v = Long.MAX_VALUE; long val2 = get(); assertEquals(val1, 5); assertEquals(val2, (isStableEnabled ? 5 : Long.MAX_VALUE)); } } /* ==================================================== */ static class VolatileLongStable { public @Stable volatile long v; public static final VolatileLongStable c = new VolatileLongStable(); public static long get() { return c.v; } public static void test() throws Exception { c.v = 5; long val1 = get(); c.v = Long.MAX_VALUE; long val2 = get(); assertEquals(val1, 5); assertEquals(val2, (isStableEnabled ? 5 : Long.MAX_VALUE)); } } /* ==================================================== */ // @Stable array == field && all components are stable static class LongArrayDim1 { public @Stable long[] v; public static final LongArrayDim1 c = new LongArrayDim1(); public static long get() { return c.v[0]; } public static long get1() { return c.v[10]; } public static long[] get2() { return c.v; } public static void test() throws Exception { { c.v = new long[1]; c.v[0] = 1; long val1 = get(); c.v[0] = 2; long val2 = get(); assertEquals(val1, 1); assertEquals(val2, (isStableEnabled ? 1 : 2)); c.v = new long[1]; c.v[0] = 3; long val3 = get(); assertEquals(val3, (isStableEnabled ? 1 : 3)); } { c.v = new long[20]; c.v[10] = 1; long val1 = get1(); c.v[10] = 2; long val2 = get1(); assertEquals(val1, 1); assertEquals(val2, (isStableEnabled ? 1 : 2)); c.v = new long[20]; c.v[10] = 3; long val3 = get1(); assertEquals(val3, (isStableEnabled ? 1 : 3)); } { c.v = new long[1]; long[] val1 = get2(); c.v = new long[1]; long[] val2 = get2(); assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); } } } /* ==================================================== */ static class LongArrayDim2 { public @Stable long[][] v; public static final LongArrayDim2 c = new LongArrayDim2(); public static long get() { return c.v[0][0]; } public static long[] get1() { return c.v[0]; } public static long[][] get2() { return c.v; } public static void test() throws Exception { { c.v = new long[1][1]; c.v[0][0] = 1; long val1 = get(); c.v[0][0] = 2; long val2 = get(); assertEquals(val1, 1); assertEquals(val2, (isStableEnabled ? 1 : 2)); c.v = new long[1][1]; c.v[0][0] = 3; long val3 = get(); assertEquals(val3, (isStableEnabled ? 1 : 3)); c.v[0] = new long[1]; c.v[0][0] = 4; long val4 = get(); assertEquals(val4, (isStableEnabled ? 1 : 4)); } { c.v = new long[1][1]; long[] val1 = get1(); c.v[0] = new long[1]; long[] val2 = get1(); assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); } { c.v = new long[1][1]; long[][] val1 = get2(); c.v = new long[1][1]; long[][] val2 = get2(); assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); } } } /* ==================================================== */ static class LongArrayDim3 { public @Stable long[][][] v; public static final LongArrayDim3 c = new LongArrayDim3(); public static long get() { return c.v[0][0][0]; } public static long[] get1() { return c.v[0][0]; } public static long[][] get2() { return c.v[0]; } public static long[][][] get3() { return c.v; } public static void test() throws Exception { { c.v = new long[1][1][1]; c.v[0][0][0] = 1; long val1 = get(); c.v[0][0][0] = 2; long val2 = get(); assertEquals(val1, 1); assertEquals(val2, (isStableEnabled ? 1 : 2)); c.v = new long[1][1][1]; c.v[0][0][0] = 3; long val3 = get(); assertEquals(val3, (isStableEnabled ? 1 : 3)); c.v[0] = new long[1][1]; c.v[0][0][0] = 4; long val4 = get(); assertEquals(val4, (isStableEnabled ? 1 : 4)); c.v[0][0] = new long[1]; c.v[0][0][0] = 5; long val5 = get(); assertEquals(val5, (isStableEnabled ? 1 : 5)); } { c.v = new long[1][1][1]; long[] val1 = get1(); c.v[0][0] = new long[1]; long[] val2 = get1(); assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); } { c.v = new long[1][1][1]; long[][] val1 = get2(); c.v[0] = new long[1][1]; long[][] val2 = get2(); assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); } { c.v = new long[1][1][1]; long[][][] val1 = get3(); c.v = new long[1][1][1]; long[][][] val2 = get3(); assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); } } } /* ==================================================== */ static class LongArrayDim4 { public @Stable long[][][][] v; public static final LongArrayDim4 c = new LongArrayDim4(); public static long get() { return c.v[0][0][0][0]; } public static long[] get1() { return c.v[0][0][0]; } public static long[][] get2() { return c.v[0][0]; } public static long[][][] get3() { return c.v[0]; } public static long[][][][] get4() { return c.v; } public static void test() throws Exception { { c.v = new long[1][1][1][1]; c.v[0][0][0][0] = 1; long val1 = get(); c.v[0][0][0][0] = 2; long val2 = get(); assertEquals(val1, 1); assertEquals(val2, (isStableEnabled ? 1 : 2)); c.v = new long[1][1][1][1]; c.v[0][0][0][0] = 3; long val3 = get(); assertEquals(val3, (isStableEnabled ? 1 : 3)); c.v[0] = new long[1][1][1]; c.v[0][0][0][0] = 4; long val4 = get(); assertEquals(val4, (isStableEnabled ? 1 : 4)); c.v[0][0] = new long[1][1]; c.v[0][0][0][0] = 5; long val5 = get(); assertEquals(val5, (isStableEnabled ? 1 : 5)); c.v[0][0][0] = new long[1]; c.v[0][0][0][0] = 6; long val6 = get(); assertEquals(val6, (isStableEnabled ? 1 : 6)); } { c.v = new long[1][1][1][1]; long[] val1 = get1(); c.v[0][0][0] = new long[1]; long[] val2 = get1(); assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); } { c.v = new long[1][1][1][1]; long[][] val1 = get2(); c.v[0][0] = new long[1][1]; long[][] val2 = get2(); assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); } { c.v = new long[1][1][1][1]; long[][][] val1 = get3(); c.v[0] = new long[1][1][1]; long[][][] val2 = get3(); assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); } { c.v = new long[1][1][1][1]; long[][][][] val1 = get4(); c.v = new long[1][1][1][1]; long[][][][] 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 long get() { return ((long[])c.v)[0]; } public static long[] get1() { return (long[])c.v; } public static void test() throws Exception { { c.v = new long[1]; ((long[])c.v)[0] = 1; long val1 = get(); ((long[])c.v)[0] = 2; long val2 = get(); assertEquals(val1, 1); assertEquals(val2, 2); } { c.v = new long[1]; long[] val1 = get1(); c.v = new long[1]; long[] val2 = get1(); assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); } } } /* ==================================================== */ static class ObjectArrayLowerDim1 { public @Stable Object[] v; public static final ObjectArrayLowerDim1 c = new ObjectArrayLowerDim1(); public static long get() { return ((long[][])c.v)[0][0]; } public static long[] get1() { return (long[])(c.v[0]); } public static Object[] get2() { return c.v; } public static void test() throws Exception { { c.v = new long[1][1]; ((long[][])c.v)[0][0] = 1; long val1 = get(); ((long[][])c.v)[0][0] = 2; long val2 = get(); assertEquals(val1, 1); assertEquals(val2, 2); } { c.v = new long[1][1]; c.v[0] = new long[0]; long[] val1 = get1(); c.v[0] = new long[0]; long[] val2 = get1(); assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); } { c.v = new long[0][0]; Object[] val1 = get2(); c.v = new long[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 long get() { return ((long[][][])c.v)[0][0][0]; } public static long[] get1() { return (long[])(c.v[0][0]); } public static long[][] get2() { return (long[][])(c.v[0]); } public static Object[][] get3() { return c.v; } public static void test() throws Exception { { c.v = new long[1][1][1]; ((long[][][])c.v)[0][0][0] = 1L; long val1 = get(); ((long[][][])c.v)[0][0][0] = 2L; long val2 = get(); assertEquals(val1, 1L); assertEquals(val2, 2L); } { c.v = new long[1][1][1]; c.v[0][0] = new long[0]; long[] val1 = get1(); c.v[0][0] = new long[0]; long[] val2 = get1(); assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); } { c.v = new long[1][1][1]; c.v[0] = new long[0][0]; long[][] val1 = get2(); c.v[0] = new long[0][0]; long[][] val2 = get2(); assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); } { c.v = new long[0][0][0]; Object[][] val1 = get3(); c.v = new long[0][0][0]; Object[][] val2 = get3(); assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); } } } /* ==================================================== */ static class NestedStableField { static class A { public @Stable long a; } public @Stable A v; public static final NestedStableField c = new NestedStableField(); public static A get() { return c.v; } public static long get1() { return get().a; } public static void test() throws Exception { { c.v = new A(); c.v.a = 1; A val1 = get(); c.v.a = 2; A val2 = get(); assertEquals(val1.a, 2); assertEquals(val2.a, 2); } { c.v = new A(); c.v.a = 1; long val1 = get1(); c.v.a = 2; long val2 = get1(); c.v = new A(); c.v.a = 3; long val3 = get1(); assertEquals(val1, 1); assertEquals(val2, (isStableEnabled ? 1 : 2)); assertEquals(val3, (isStableEnabled ? 1 : 3)); } } } /* ==================================================== */ static class NestedStableField1 { static class A { public @Stable long 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 long 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 = 1; c.v.next.a = 1; A val1 = get(); c.v.a = 2; c.v.next.a = 2; A val2 = get(); assertEquals(val1.a, 2); assertEquals(val2.a, 2); } { c.v = new A(); c.v.next = c.v; c.v.a = 1; long val1 = get1(); c.v.a = 2; long val2 = get1(); c.v = new A(); c.v.next = c.v; c.v.a = 3; long val3 = get1(); assertEquals(val1, 1); assertEquals(val2, (isStableEnabled ? 1 : 2)); assertEquals(val3, (isStableEnabled ? 1 : 3)); } } } /* ==================================================== */ static class NestedStableField2 { static class A { public @Stable long a; public @Stable A left; public A right; } public @Stable A v; public static final NestedStableField2 c = new NestedStableField2(); public static long get() { return c.v.left.left.left.a; } public static long 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 = 1; long val1 = get(); long val2 = get1(); c.v.a = 2; long val3 = get(); long val4 = get1(); assertEquals(val1, 1); assertEquals(val3, (isStableEnabled ? 1 : 2)); assertEquals(val2, 1); assertEquals(val4, 2); } } } /* ==================================================== */ static class NestedStableField3 { static class A { public @Stable long a; public @Stable A[] left; public A[] right; } public @Stable A[] v; public static final NestedStableField3 c = new NestedStableField3(); public static long get() { return c.v[0].left[1].left[0].left[1].a; } public static long 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 = 1; long val1 = get(); long val2 = get1(); elem.a = 2; long val3 = get(); long val4 = get1(); assertEquals(val1, 1); assertEquals(val3, (isStableEnabled ? 1 : 2)); assertEquals(val2, 1); assertEquals(val4, 2); } } } /* ==================================================== */ // Auxiliary methods static void assertEquals(long i, long 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())); } }