1 /* 2 * Copyright (c) 2003, 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 package nsk.jvmti.scenarios.jni_interception.JI05; 25 26 import java.io.*; 27 import java.util.*; 28 import nsk.share.*; 29 30 /** 31 * The test exercises the JVMTI target area "JNI Function Interception". 32 * It implements the following scenario:<br> 33 * <code>Let agent A of first JVMTI environment redirects a JNI function, 34 * then agent B of second JVMTI environment redirects the same 35 * function. Check that last redirection takes effect in agent A.</code> 36 * <p> 37 * The test works as follows. On phase JVM_OnLoad event VMInit is 38 * enabled. Upon receiving the event, two separate agent threads are 39 * started, each of them with its own JVMTI environment. The agent A 40 * running in one JVMTI environment redirects the JNI function 41 * GetVersion(). Then that redirection is checked in the agent B 42 * running in another JVMTI environment, and vise versa for redirection 43 * made by the agent B. 44 */ 45 public class ji05t001 { 46 static { 47 try { 48 System.loadLibrary("ji05t001"); 49 } catch (UnsatisfiedLinkError ule) { 50 System.err.println("Could not load \"ji05t001\" library"); 51 System.err.println("java.library.path:" 52 + System.getProperty("java.library.path")); 53 throw ule; 54 } 55 } 56 getResult()57 native int getResult(); 58 main(String args[])59 public static void main(String args[]) { 60 args = nsk.share.jvmti.JVMTITest.commonInit(args); 61 62 // produce JCK-like exit status. 63 System.exit(run(args, System.out) + Consts.JCK_STATUS_BASE); 64 } 65 run(String args[], PrintStream out)66 public static int run(String args[], PrintStream out) { 67 return new ji05t001().runIt(args, out); 68 } 69 runIt(String args[], PrintStream out)70 private int runIt(String args[], PrintStream out) { 71 return getResult(); 72 } 73 } 74