--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test/hotspot/jtreg/vmTestbase/nsk/jvmti/scenarios/bcinstr/BI03/bi03t002/bi03t002.cpp Tue Aug 28 14:37:34 2018 -0700
@@ -0,0 +1,189 @@
+/*
+ * Copyright (c) 2004, 2018, 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 <stdlib.h>
+#include <string.h>
+#include "jni_tools.h"
+#include "agent_common.h"
+#include "jvmti_tools.h"
+
+#define PASSED 0
+#define STATUS_FAILED 2
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* ========================================================================== */
+
+/* scaffold objects */
+static jlong timeout = 0;
+
+/* test objects */
+static jclass debugeeClass = NULL;
+static jclass testedClass = NULL;
+static jbyteArray classBytes = NULL;
+
+const char* CLASS_NAME = "nsk/jvmti/scenarios/bcinstr/BI03/bi03t002a";
+
+/* ========================================================================== */
+
+static int prepare(jvmtiEnv* jvmti, JNIEnv* jni) {
+ const char* DEBUGEE_CLASS_NAME =
+ "nsk/jvmti/scenarios/bcinstr/BI03/bi03t002";
+ jfieldID field = NULL;
+
+ NSK_DISPLAY1("Find class: %s\n", DEBUGEE_CLASS_NAME);
+ if (!NSK_JNI_VERIFY(jni, (debugeeClass =
+ NSK_CPP_STUB2(FindClass, jni, DEBUGEE_CLASS_NAME)) != NULL))
+ return NSK_FALSE;
+
+ if (!NSK_JNI_VERIFY(jni, (debugeeClass = (jclass)
+ NSK_CPP_STUB2(NewGlobalRef, jni, debugeeClass)) != NULL))
+ return NSK_FALSE;
+
+ if (!NSK_JNI_VERIFY(jni, (field =
+ NSK_CPP_STUB4(GetStaticFieldID, jni, debugeeClass,
+ "newClassBytes", "[B")) != NULL))
+ return NSK_FALSE;
+
+ if (!NSK_JNI_VERIFY(jni, (classBytes = (jbyteArray)
+ NSK_CPP_STUB3(GetStaticObjectField, jni, debugeeClass, field))
+ != NULL))
+ return NSK_FALSE;
+
+ if (!NSK_JNI_VERIFY(jni, (classBytes = (jbyteArray)
+ NSK_CPP_STUB2(NewGlobalRef, jni, classBytes)) != NULL))
+ return NSK_FALSE;
+
+ NSK_DISPLAY1("Find class: %s\n", CLASS_NAME);
+ if (!NSK_JNI_VERIFY(jni, (testedClass =
+ NSK_CPP_STUB2(FindClass, jni, CLASS_NAME)) != NULL))
+ return NSK_FALSE;
+
+ if (!NSK_JNI_VERIFY(jni, (testedClass = (jclass)
+ NSK_CPP_STUB2(NewGlobalRef, jni, testedClass)) != NULL))
+ return NSK_FALSE;
+
+ return NSK_TRUE;
+}
+
+/* ========================================================================== */
+
+static int redefine(jvmtiEnv* jvmti, JNIEnv* jni) {
+ jvmtiClassDefinition class_def;
+
+ NSK_DISPLAY0("Redefining ...\n");
+
+ if (!NSK_JNI_VERIFY(jni, (class_def.class_byte_count =
+ NSK_CPP_STUB2(GetArrayLength, jni, classBytes)) > 0))
+ return NSK_TRUE;
+
+ if (!NSK_JNI_VERIFY(jni, (class_def.class_bytes = (unsigned char*)
+ NSK_CPP_STUB3(GetByteArrayElements, jni, classBytes, NULL))
+ != NULL))
+ return NSK_TRUE;
+
+ class_def.klass = testedClass;
+ if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB3(RedefineClasses, jvmti, 1, &class_def)))
+ return NSK_FALSE;
+
+ return NSK_TRUE;
+}
+
+/* ========================================================================== */
+
+/** Agent algorithm. */
+static void JNICALL
+agentProc(jvmtiEnv* jvmti, JNIEnv* jni, void* arg) {
+
+ if (!nsk_jvmti_waitForSync(timeout))
+ return;
+
+ if (!prepare(jvmti, jni)) {
+ nsk_jvmti_setFailStatus();
+ return;
+ }
+
+ if (!redefine(jvmti, jni))
+ nsk_jvmti_setFailStatus();
+
+ /* resume debugee and wait for sync */
+ if (!nsk_jvmti_resumeSync())
+ return;
+ if (!nsk_jvmti_waitForSync(timeout))
+ return;
+
+ NSK_TRACE(NSK_CPP_STUB2(DeleteGlobalRef, jni, debugeeClass));
+ NSK_TRACE(NSK_CPP_STUB2(DeleteGlobalRef, jni, classBytes));
+ NSK_TRACE(NSK_CPP_STUB2(DeleteGlobalRef, jni, testedClass));
+
+ if (!nsk_jvmti_resumeSync())
+ return;
+}
+
+/* ========================================================================== */
+
+/** Agent library initialization. */
+#ifdef STATIC_BUILD
+JNIEXPORT jint JNICALL Agent_OnLoad_bi03t002(JavaVM *jvm, char *options, void *reserved) {
+ return Agent_Initialize(jvm, options, reserved);
+}
+JNIEXPORT jint JNICALL Agent_OnAttach_bi03t002(JavaVM *jvm, char *options, void *reserved) {
+ return Agent_Initialize(jvm, options, reserved);
+}
+JNIEXPORT jint JNI_OnLoad_bi03t002(JavaVM *jvm, char *options, void *reserved) {
+ return JNI_VERSION_1_8;
+}
+#endif
+jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) {
+ jvmtiEnv* jvmti = NULL;
+ jvmtiCapabilities caps;
+
+ NSK_DISPLAY0("Agent_OnLoad\n");
+
+ if (!NSK_VERIFY(nsk_jvmti_parseOptions(options)))
+ return JNI_ERR;
+
+ timeout = nsk_jvmti_getWaitTime() * 60 * 1000;
+
+ if (!NSK_VERIFY((jvmti =
+ nsk_jvmti_createJVMTIEnv(jvm, reserved)) != NULL))
+ return JNI_ERR;
+
+ memset(&caps, 0, sizeof(caps));
+ caps.can_redefine_classes = 1;
+ if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(AddCapabilities, jvmti, &caps)))
+ return JNI_ERR;
+
+ if (!NSK_VERIFY(nsk_jvmti_setAgentProc(agentProc, NULL)))
+ return JNI_ERR;
+
+ return JNI_OK;
+}
+
+/* ========================================================================== */
+
+#ifdef __cplusplus
+}
+#endif