/* * Copyright (c) 2003, 2024, 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 #include #include "jvmti.h" #include "agent_common.hpp" #include "JVMTITools.hpp" extern "C" { #define PASSED 0 #define STATUS_FAILED 2 static jvmtiEnv *jvmti = nullptr; static jint result = PASSED; static jboolean printdump = JNI_FALSE; #ifdef STATIC_BUILD JNIEXPORT jint JNICALL Agent_OnLoad_thrgrpinfo002(JavaVM *jvm, char *options, void *reserved) { return Agent_Initialize(jvm, options, reserved); } JNIEXPORT jint JNICALL Agent_OnAttach_thrgrpinfo002(JavaVM *jvm, char *options, void *reserved) { return Agent_Initialize(jvm, options, reserved); } JNIEXPORT jint JNI_OnLoad_thrgrpinfo002(JavaVM *jvm, char *options, void *reserved) { return JNI_VERSION_1_8; } #endif jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) { jint res; if (options != nullptr && strcmp(options, "printdump") == 0) { printdump = JNI_TRUE; } res = jvm->GetEnv((void **) &jvmti, JVMTI_VERSION_1_1); if (res != JNI_OK || jvmti == nullptr) { printf("Wrong result of a valid call to GetEnv!\n"); return JNI_ERR; } return JNI_OK; } JNIEXPORT jint JNICALL Java_nsk_jvmti_GetThreadGroupInfo_thrgrpinfo002_check(JNIEnv *env, jclass cls) { jvmtiError err; jint groupCount; jthreadGroup *groups; jvmtiThreadGroupInfo inf; if (jvmti == nullptr) { printf("JVMTI client was not properly loaded!\n"); return STATUS_FAILED; } if (printdump == JNI_TRUE) { printf(">>> getting top thread group ...\n"); } err = jvmti->GetTopThreadGroups(&groupCount, &groups); if (err != JVMTI_ERROR_NONE) { printf("(GetTopThreadGroups) unexpected error: %s (%d)\n", TranslateError(err), err); result = STATUS_FAILED; } if (printdump == JNI_TRUE) { printf(">>> invalid group check ...\n"); } err = jvmti->GetThreadGroupInfo(nullptr, &inf); if (err != JVMTI_ERROR_INVALID_THREAD_GROUP) { printf("Error expected: JVMTI_ERROR_INVALID_THREAD_GROUP,\n"); printf(" got: %s (%d)\n", TranslateError(err), err); result = STATUS_FAILED; } if (printdump == JNI_TRUE) { printf(">>> null pointer check ...\n"); } err = jvmti->GetThreadGroupInfo(*groups, nullptr); if (err != JVMTI_ERROR_NULL_POINTER) { printf("Error expected: JVMTI_ERROR_NULL_POINTER,\n"); printf(" got: %s (%d)\n", TranslateError(err), err); result = STATUS_FAILED; } if (printdump == JNI_TRUE) { printf(">>> done\n"); } return result; } }