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/*
! * Copyright (c) 2020, 2022, 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.
/*
! * Copyright (c) 2020, 2023, 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.
* -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
* -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -XX:ShenandoahGCMode=satb
* gc.shenandoah.TestReferenceRefersToShenandoah
*/
! /* @test id=iu
* @requires vm.gc.Shenandoah
* @library /test/lib
* @build jdk.test.whitebox.WhiteBox
! * @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
* @run main/othervm
* -Xbootclasspath/a:.
* -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
! * -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -XX:ShenandoahGCMode=iu
* gc.shenandoah.TestReferenceRefersToShenandoah
*/
! /* @test id=satb-100
* @requires vm.gc.Shenandoah
* @library /test/lib
* @build jdk.test.whitebox.WhiteBox
! * @modules java.base
- * @run main jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
* @run main/othervm
* -Xbootclasspath/a:.
* -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
! * -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -XX:ShenandoahGCMode=satb -XX:ShenandoahGarbageThreshold=100 -Xmx100m
* gc.shenandoah.TestReferenceRefersToShenandoah
*/
! /* @test id=iu-100
* @requires vm.gc.Shenandoah
* @library /test/lib
* @build jdk.test.whitebox.WhiteBox
* @modules java.base
* @run main jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
* @run main/othervm
* -Xbootclasspath/a:.
* -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
! * -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -XX:ShenandoahGCMode=iu -XX:ShenandoahGarbageThreshold=100 -Xmx100m
* gc.shenandoah.TestReferenceRefersToShenandoah
*/
import java.lang.ref.PhantomReference;
import java.lang.ref.Reference;
* -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
* -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -XX:ShenandoahGCMode=satb
* gc.shenandoah.TestReferenceRefersToShenandoah
*/
! /* @test id=satb-100
* @requires vm.gc.Shenandoah
* @library /test/lib
* @build jdk.test.whitebox.WhiteBox
! * @modules java.base
+ * @run main jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
* @run main/othervm
* -Xbootclasspath/a:.
* -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
! * -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -XX:ShenandoahGCMode=satb -XX:ShenandoahGarbageThreshold=100 -Xmx100m
* gc.shenandoah.TestReferenceRefersToShenandoah
*/
! /* @test id=generational
* @requires vm.gc.Shenandoah
* @library /test/lib
* @build jdk.test.whitebox.WhiteBox
! * @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
* @run main/othervm
* -Xbootclasspath/a:.
* -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
! * -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -XX:ShenandoahGCMode=generational
* gc.shenandoah.TestReferenceRefersToShenandoah
*/
! /* @test id=generational-100
* @requires vm.gc.Shenandoah
* @library /test/lib
* @build jdk.test.whitebox.WhiteBox
* @modules java.base
* @run main jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
* @run main/othervm
* -Xbootclasspath/a:.
* -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
! * -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -XX:ShenandoahGCMode=generational -XX:ShenandoahGarbageThreshold=100 -Xmx100m
* gc.shenandoah.TestReferenceRefersToShenandoah
*/
import java.lang.ref.PhantomReference;
import java.lang.ref.Reference;
private static void gcUntilOld(Object o) throws Exception {
if (!WB.isObjectInOldGen(o)) {
WB.fullGC();
if (!WB.isObjectInOldGen(o)) {
! fail("object not promoted by full gc");
}
}
}
private static void gcUntilOld() throws Exception {
private static void gcUntilOld(Object o) throws Exception {
if (!WB.isObjectInOldGen(o)) {
WB.fullGC();
if (!WB.isObjectInOldGen(o)) {
! // This is just a warning, because failing would
+ // be overspecifying for generational shenandoah,
+ // which need not necessarily promote objects upon
+ // a full GC.
+ warn("object not promoted by full gc");
}
}
}
private static void gcUntilOld() throws Exception {
private static void fail(String msg) throws Exception {
throw new RuntimeException(msg);
}
+ private static void warn(String msg) {
+ System.out.println("Warning: " + msg);
+ }
+
private static void expectCleared(Reference<TestObject> ref,
String which) throws Exception {
expectNotValue(ref, testObjectNone, which);
if (!ref.refersTo(null)) {
fail("expected " + which + " to be cleared");
testObject2 = null;
// testObject3 not dropped
testObject4 = null;
}
- private static boolean isShenandoahIUMode() {
- return "iu".equals(WB.getStringVMFlag("ShenandoahGCMode"));
- }
-
private static void testConcurrentCollection() throws Exception {
progress("setup concurrent collection test");
setup();
progress("gcUntilOld");
gcUntilOld();
progress("verify expected clears");
expectCleared(testPhantom1, "testPhantom1");
expectCleared(testWeak2, "testWeak2");
expectValue(testWeak3, testObject3, "testWeak3");
! // This is true for all currently supported concurrent collectors,
- // except Shenandoah+IU, which allows clearing refs even when
- // accessed during concurrent marking.
- if (isShenandoahIUMode()) {
- expectCleared(testWeak4, "testWeak4");
- } else {
- expectNotCleared(testWeak4, "testWeak4");
- }
progress("verify get returns expected values");
if (testWeak2.get() != null) {
fail("testWeak2.get() != null");
}
progress("verify expected clears");
expectCleared(testPhantom1, "testPhantom1");
expectCleared(testWeak2, "testWeak2");
expectValue(testWeak3, testObject3, "testWeak3");
! expectNotCleared(testWeak4, "testWeak4");
progress("verify get returns expected values");
if (testWeak2.get() != null) {
fail("testWeak2.get() != null");
}
} else if (obj3.value != 3) {
fail("testWeak3.get().value is " + obj3.value);
}
TestObject obj4 = testWeak4.get();
! if (!isShenandoahIUMode()) {
! if (obj4 == null) {
! fail("testWeak4.get() returned null");
! } else if (obj4.value != 4) {
- fail("testWeak4.get().value is " + obj4.value);
- }
}
progress("verify queue entries");
long timeout = 60000; // 1 minute of milliseconds.
while (true) {
} else if (obj3.value != 3) {
fail("testWeak3.get().value is " + obj3.value);
}
TestObject obj4 = testWeak4.get();
! if (obj4 == null) {
! fail("testWeak4.get() returned null");
! } else if (obj4.value != 4) {
! fail("testWeak4.get().value is " + obj4.value);
}
progress("verify queue entries");
long timeout = 60000; // 1 minute of milliseconds.
while (true) {
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