--- a/hotspot/make/test/JtregNative.gmk Mon Oct 26 16:21:37 2015 +0100
+++ b/hotspot/make/test/JtregNative.gmk Tue Nov 10 03:54:50 2015 +0000
@@ -45,6 +45,7 @@
$(HOTSPOT_TOPDIR)/test/runtime/jni/8025979 \
$(HOTSPOT_TOPDIR)/test/runtime/jni/8033445 \
$(HOTSPOT_TOPDIR)/test/runtime/jni/ToStringInInterfaceTest \
+ $(HOTSPOT_TOPDIR)/test/runtime/SameObject \
#
BUILD_HOTSPOT_JTREG_OUTPUT_DIR := $(BUILD_OUTPUT)/support/test/hotspot/jtreg/native
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/runtime/SameObject/SameObject.java Tue Nov 10 03:54:50 2015 +0000
@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2015, 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.
+ *
+ * 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.
+ */
+
+import jdk.test.lib.Asserts;
+
+/*
+ * @test
+ * @key cte_test
+ * @bug 4784641
+ * @summary -Xcheck:jni overly strict in JNI method IsSameObject
+ * Fixed in JDK1.3.1_10
+ * Fixed in JDK1.4.1_07
+ * @library /testlibrary
+ * @run main/othervm/native -Xcheck:jni SameObject
+ */
+public class SameObject {
+
+ public Object obj = new Object();
+
+ static {
+ System.loadLibrary("SameObject");
+ }
+
+ public native void createWeakRef(Object obj);
+
+ public native int checkWeakRef();
+
+ public static void main(String[] args) throws Exception {
+ SameObject sameObject = new SameObject();
+
+ int result = sameObject.test();
+ Asserts.assertEquals(result, 0, "WeakRef still alive");
+ }
+
+ public int test() {
+ createWeakRef(obj);
+ obj = null;
+ System.gc();
+ try {
+ Thread.sleep(2000);
+ } catch (InterruptedException ex) {
+ System.out.println("Interrupted");
+ }
+
+ return checkWeakRef();
+ }
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/runtime/SameObject/libSameObject.c Tue Nov 10 03:54:50 2015 +0000
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2015, 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.
+ *
+ * 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.
+ */
+
+#include <jni.h>
+
+static jobject weakRef;
+
+/*
+ * Class: SameObject
+ * Method: createWeakRef
+ * Signature: (Ljava/lang/Object;)V
+ */
+JNIEXPORT void JNICALL Java_SameObject_createWeakRef
+(JNIEnv *env, jobject obj1, jobject obj2) {
+ weakRef = (*env)->NewWeakGlobalRef(env, obj2);
+}
+
+/*
+ * Class: SameObject
+ * Method: checkWeakRef
+ * Signature: ()I
+ */
+JNIEXPORT jint JNICALL Java_SameObject_checkWeakRef
+(JNIEnv *env, jobject obj) {
+ return (*env)->IsSameObject(env, weakRef, NULL) ? 0 : 1;
+}