--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test/hotspot/jtreg/vmTestbase/nsk/jvmti/RedefineClasses/redefclass005/redefclass005.cpp Tue Aug 28 14:37:34 2018 -0700
@@ -0,0 +1,255 @@
+/*
+ * Copyright (c) 2003, 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 <stdio.h>
+#include <string.h>
+#include <jvmti.h>
+#include "agent_common.h"
+#include "JVMTITools.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef JNI_ENV_ARG
+
+#ifdef __cplusplus
+#define JNI_ENV_ARG(x, y) y
+#define JNI_ENV_PTR(x) x
+#else
+#define JNI_ENV_ARG(x,y) x, y
+#define JNI_ENV_PTR(x) (*x)
+#endif
+
+#endif
+
+#define STATUS_FAILED 2
+#define PASSED 0
+
+static jvmtiEnv *jvmti = NULL;
+static jvmtiCapabilities caps;
+static jvmtiEventCallbacks callbacks;
+static int watch_ev = 0; /* ignore JVMTI events by default */
+static int CFLH_gen_ev = 0; /* number of generated ClassFileLoadHook events */
+static int gen_ev = 0; /* number of generated events */
+static int result = PASSED; /* total result of the test */
+
+static jrawMonitorID watch_ev_monitor;
+
+static void set_watch_ev(int value) {
+ jvmti->RawMonitorEnter(watch_ev_monitor);
+
+ watch_ev = value;
+
+ jvmti->RawMonitorExit(watch_ev_monitor);
+}
+
+void JNICALL
+ClassFileLoadHook(jvmtiEnv *jvmti_env, JNIEnv *env, jclass class_being_redefined,
+ jobject loader, const char* name, jobject protection_domain,
+ jint class_data_len, const unsigned char* class_data,
+ jint *new_class_data_len, unsigned char** new_class_data) {
+
+ jvmti->RawMonitorEnter(watch_ev_monitor);
+
+ if (watch_ev && class_being_redefined != NULL) {
+ printf("#### JVMTI_EVENT_CLASS_FILE_LOAD_HOOK occurred ####\n");
+ CFLH_gen_ev++;
+ }
+
+ jvmti->RawMonitorExit(watch_ev_monitor);
+}
+
+void JNICALL
+ClassLoad(jvmtiEnv *jvmti_env, JNIEnv *env, jthread thr, jclass cls) {
+ jvmti->RawMonitorEnter(watch_ev_monitor);
+
+ if (watch_ev) {
+ printf("#### JVMTI_EVENT_CLASS_LOAD occurred ####\n");
+ gen_ev++;
+ }
+
+ jvmti->RawMonitorExit(watch_ev_monitor);
+}
+
+void JNICALL
+ClassPrepare(jvmtiEnv *jvmti_env, JNIEnv *env, jthread thr, jclass cls) {
+ jvmti->RawMonitorEnter(watch_ev_monitor);
+
+ if (watch_ev) {
+ printf("#### JVMTI_EVENT_CLASS_PREPARE occurred ####\n");
+ gen_ev++;
+ }
+
+ jvmti->RawMonitorExit(watch_ev_monitor);
+}
+
+#ifdef STATIC_BUILD
+JNIEXPORT jint JNICALL Agent_OnLoad_redefclass005(JavaVM *jvm, char *options, void *reserved) {
+ return Agent_Initialize(jvm, options, reserved);
+}
+JNIEXPORT jint JNICALL Agent_OnAttach_redefclass005(JavaVM *jvm, char *options, void *reserved) {
+ return Agent_Initialize(jvm, options, reserved);
+}
+JNIEXPORT jint JNI_OnLoad_redefclass005(JavaVM *jvm, char *options, void *reserved) {
+ return JNI_VERSION_1_8;
+}
+#endif
+jint Agent_Initialize(JavaVM *vm, char *options, void *reserved) {
+ jint res;
+ jvmtiError err;
+
+ if ((res = JNI_ENV_PTR(vm)->GetEnv(JNI_ENV_ARG(vm, (void **) &jvmti),
+ JVMTI_VERSION_1_1)) != JNI_OK) {
+ printf("%s: Failed to call GetEnv: error=%d\n", __FILE__, res);
+ return JNI_ERR;
+ }
+
+ err = jvmti->GetPotentialCapabilities(&caps);
+ if (err != JVMTI_ERROR_NONE) {
+ printf("(GetPotentialCapabilities) unexpected error: %s (%d)\n",
+ TranslateError(err), err);
+ return JNI_ERR;
+ }
+
+ err = jvmti->AddCapabilities(&caps);
+ if (err != JVMTI_ERROR_NONE) {
+ printf("(AddCapabilities) unexpected error: %s (%d)\n",
+ TranslateError(err), err);
+ return JNI_ERR;
+ }
+
+ err = jvmti->GetCapabilities(&caps);
+ if (err != JVMTI_ERROR_NONE) {
+ printf("(GetCapabilities) unexpected error: %s (%d)\n",
+ TranslateError(err), err);
+ return JNI_ERR;
+ }
+
+ if (!caps.can_redefine_classes) {
+ printf("Warning: RedefineClasses is not implemented\n");
+ }
+
+ callbacks.ClassFileLoadHook = &ClassFileLoadHook;
+ callbacks.ClassLoad = &ClassLoad;
+ callbacks.ClassPrepare = &ClassPrepare;
+ err = jvmti->SetEventCallbacks(&callbacks, sizeof(callbacks));
+ if (err != JVMTI_ERROR_NONE) {
+ printf("(SetEventCallbacks) unexpected error: %s (%d)\n",
+ TranslateError(err), err);
+ return JNI_ERR;
+ }
+
+ err = jvmti->CreateRawMonitor("watch_ev_monitor", &watch_ev_monitor);
+ if (err != JVMTI_ERROR_NONE) {
+ printf("(CreateRawMonitor) unexpected error: %s (%d)\n",
+ TranslateError(err), err);
+ return JNI_ERR;
+ }
+
+ return JNI_OK;
+}
+
+JNIEXPORT jint JNICALL
+Java_nsk_jvmti_RedefineClasses_redefclass005_makeRedefinition(JNIEnv *env,
+ jclass cls, jint vrb, jclass redefCls, jbyteArray classBytes) {
+ jvmtiError err;
+ jthread thread;
+ jvmtiClassDefinition classDef;
+
+ if (jvmti == NULL) {
+ printf("JVMTI client was not properly loaded!\n");
+ return STATUS_FAILED;
+ }
+
+ if (!caps.can_redefine_classes) {
+ return PASSED;
+ }
+
+ if ((err = (jvmti->GetCurrentThread(&thread))) != JVMTI_ERROR_NONE) {
+ printf("Failed to get current thread: %s (%d)\n", TranslateError(err), err);
+ result = STATUS_FAILED;
+ return STATUS_FAILED;
+ }
+
+ if ((err = (jvmti->SetEventNotificationMode(JVMTI_ENABLE,
+ JVMTI_EVENT_CLASS_FILE_LOAD_HOOK, NULL))) != JVMTI_ERROR_NONE) {
+ printf("Failed to enable event JVMTI_EVENT_CLASS_FILE_LOAD_HOOK: %s (%d)\n",
+ TranslateError(err), err);
+ result = STATUS_FAILED;
+ }
+ if ((err = (jvmti->SetEventNotificationMode(JVMTI_ENABLE,
+ JVMTI_EVENT_CLASS_LOAD, thread))) != JVMTI_ERROR_NONE) {
+ printf("Failed to enable event JVMTI_EVENT_CLASS_LOAD: %s (%d)\n",
+ TranslateError(err), err);
+ result = STATUS_FAILED;
+ }
+ if ((err = jvmti->SetEventNotificationMode(JVMTI_ENABLE,
+ JVMTI_EVENT_CLASS_PREPARE, thread)) != JVMTI_ERROR_NONE) {
+ printf("Failed to enable JVMTI_EVENT_CLASS_PREPARE: %s (%d)\n",
+ TranslateError(err), err);
+ result = STATUS_FAILED;
+ }
+
+/* filling the structure jvmtiClassDefinition */
+ classDef.klass = redefCls;
+ classDef.class_byte_count =
+ JNI_ENV_PTR(env)->GetArrayLength(JNI_ENV_ARG(env, classBytes));
+ classDef.class_bytes = (unsigned char *)
+ JNI_ENV_PTR(env)->GetByteArrayElements(JNI_ENV_ARG(env, classBytes), NULL);
+
+ set_watch_ev(1); /* watch JVMTI events */
+
+ if (vrb == 1)
+ printf(">>>>>>>> Invoke RedefineClasses():\n\tnew class byte count=%d\n",
+ classDef.class_byte_count);
+ if ((err = (jvmti->RedefineClasses(1, &classDef))) != JVMTI_ERROR_NONE) {
+ printf("TEST FAILED: the function RedefineClasses() returned error %d: %s\n",
+ err, TranslateError(err));
+ printf("\tFor more info about this error see the JVMTI spec.\n");
+ result = STATUS_FAILED;
+ }
+ else if (vrb == 1)
+ printf("Check #1 PASSED: RedefineClasses() is successfully done\n");
+
+ set_watch_ev(0); /* again ignore JVMTI events */
+
+ if (CFLH_gen_ev == 0) {
+ printf("TEST FAILED: ClassFileLoadHook event was not generated by the function RedefineClasses()\n");
+ result = STATUS_FAILED;
+ } else if (vrb == 1)
+ printf("Check #2 PASSED: %d ClassFileLoadHook events were generated by the function RedefineClasses()\n",
+ CFLH_gen_ev);
+ if (gen_ev) {
+ printf("TEST FAILED: %d unexpected JVMTI events were generated by the function RedefineClasses()\n",
+ gen_ev);
+ result = STATUS_FAILED;
+ } else if (vrb == 1)
+ printf("Check #2 PASSED: No unexpected JVMTI events were generated by the function RedefineClasses()\n");
+
+ return(result);
+}
+
+#ifdef __cplusplus
+}
+#endif