test/hotspot/jtreg/vmTestbase/nsk/jvmti/scenarios/hotswap/HS301/hs301t004/hs301t004.cpp
8229036: Remove the testing against NSK_TRUE from tests
Summary: Remove the testing against NSK_TRUE from tests
Reviewed-by: sspitsyn, cjplummer
/*
* Copyright (c) 2007, 2019, 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>
#include <jvmti.h>
#include "agent_common.h"
#include <string.h>
#include "jvmti_tools.h"
extern "C" {
#define FILE_NAME "nsk/jvmti/scenarios/hotswap/HS301/hs301t004/MyClass"
#define CLASS_NAME "Lnsk/jvmti/scenarios/hotswap/HS301/hs301t004/MyClass;"
void JNICALL callbackClassPrepare(jvmtiEnv *jvmti_env,
JNIEnv* jni_env,
jthread thread,
jclass klass) {
char * className;
char * generic;
int redefineNumber=0;
if (!NSK_JVMTI_VERIFY(jvmti_env->GetClassSignature(klass, &className, &generic))) {
nsk_printf(" Agent :: Error occured in getting class signature.\n");
return;
} else {
if (strcmp(className, CLASS_NAME) == 0) {
int redefineNumber =0;
char fileName[512];
nsk_jvmti_disableNotification(jvmti_env, JVMTI_EVENT_CLASS_PREPARE, NULL);
nsk_jvmti_getFileName(redefineNumber, FILE_NAME, fileName,
sizeof(fileName)/sizeof(char));
if (nsk_jvmti_redefineClass(jvmti_env, klass, fileName)) {
nsk_printf("Agent:: Redefine successful.\n");
} else {
nsk_printf("Agent:: Redefine failed.\n");
}
}
}
}
#ifdef STATIC_BUILD
JNIEXPORT jint JNICALL Agent_OnLoad_hs301t004(JavaVM *jvm, char *options, void *reserved) {
return Agent_Initialize(jvm, options, reserved);
}
JNIEXPORT jint JNICALL Agent_OnAttach_hs301t004(JavaVM *jvm, char *options, void *reserved) {
return Agent_Initialize(jvm, options, reserved);
}
JNIEXPORT jint JNI_OnLoad_hs301t004(JavaVM *jvm, char *options, void *reserved) {
return JNI_VERSION_1_8;
}
#endif
jint Agent_Initialize(JavaVM *vm, char *options, void *reserved) {
jvmtiEnv * jvmti;
nsk_printf("Agent:: VM Started.\n");
if (!NSK_VERIFY (JNI_OK == vm->GetEnv((void **)&jvmti, JVMTI_VERSION_1_1))) {
nsk_printf("Agent:: Could not load JVMTI interface \n");
return JNI_ERR;
} else {
jvmtiCapabilities caps;
jvmtiEventCallbacks eventCallbacks;
if (!nsk_jvmti_parseOptions(options)) {
nsk_printf("# error agent Failed to parse options \n");
return JNI_ERR;
}
memset(&caps, 0, sizeof(caps));
caps.can_redefine_classes = 1;
caps.can_generate_all_class_hook_events=1;
if (!NSK_JVMTI_VERIFY (jvmti->AddCapabilities(&caps))) {
nsk_printf(" Agent:: Error occured while adding capabilities.\n");
return JNI_ERR;
}
memset(&eventCallbacks, 0, sizeof(eventCallbacks));
eventCallbacks.ClassPrepare = &callbackClassPrepare;
if (!NSK_JVMTI_VERIFY(jvmti->SetEventCallbacks(&eventCallbacks, sizeof(eventCallbacks)))) {
nsk_printf(" Agent:: Error occured while setting event call back \n");
return JNI_ERR;
}
if (nsk_jvmti_enableNotification(jvmti, JVMTI_EVENT_CLASS_PREPARE, NULL)) {
nsk_printf(" Enabled notification.\n");
} else {
nsk_printf(" Failed to enable notifications.\n");
}
}
return JNI_OK;
}
}