| /* |
| * Copyright (c) 2007, 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. |
| */ |
| |
| package nsk.jvmti.unit.FollowReferences; |
| |
| import java.io.PrintStream; |
| |
| import nsk.share.*; |
| import nsk.share.jvmti.*; |
| |
| public class followref002 extends DebugeeClass { |
| |
| /** Load native library if required.*/ |
| static { |
| loadLibrary("followref002"); |
| } |
| |
| /** Run test from command line. */ |
| public static void main(String argv[]) { |
| argv = nsk.share.jvmti.JVMTITest.commonInit(argv); |
| |
| // JCK-compatible exit |
| System.exit(run(argv, System.out) + Consts.JCK_STATUS_BASE); |
| } |
| |
| /** Run test from JCK-compatible environment. */ |
| public static int run(String argv[], PrintStream out) { |
| return new followref002().runIt(argv, out); |
| } |
| |
| /* =================================================================== */ |
| |
| /* scaffold objects */ |
| ArgumentHandler argHandler = null; |
| Log log = null; |
| long timeout = 0; |
| int status = Consts.TEST_PASSED; |
| |
| /* constants */ |
| public static final int DEFAULT_CHAIN_LENGTH = 3; |
| |
| /** Tested object. */ |
| public static followref002RootTestedClass object = null; |
| |
| /** Run debugee code. */ |
| public int runIt(String argv[], PrintStream out) { |
| argHandler = new ArgumentHandler(argv); |
| log = new Log(out, argHandler); |
| timeout = argHandler.getWaitTime() * 60 * 1000; // milliseconds |
| |
| int chainLength = argHandler.findOptionIntValue("objects", DEFAULT_CHAIN_LENGTH); |
| |
| log.display("Creating chain of tested objects: " + chainLength + " length"); |
| |
| object = new followref002RootTestedClass(chainLength); |
| |
| log.display("Sync: objects created"); |
| status = checkStatus(status); |
| |
| log.display("Cleaning links to unreachable objects"); |
| followref002TestedClass savedChain = object.cleanUnreachable(); |
| |
| log.display("Sync: objects are unreachable"); |
| status = checkStatus(status); |
| |
| return status; |
| } |
| } |
| |
| /* =================================================================== */ |
| |
| /** Class for root tested object. */ |
| class followref002RootTestedClass { |
| static Class<followref002> mainClass = nsk.jvmti.unit.FollowReferences.followref002.class; |
| |
| int length; |
| |
| followref002TestedClass reachableChain = null; |
| followref002TestedClass unreachableChain = null; |
| |
| public followref002RootTestedClass(int length) { |
| this.length = length; |
| reachableChain = new followref002TestedClass(length); |
| unreachableChain = new followref002TestedClass(length); |
| |
| reachableChain.tail.tail.tail = reachableChain; |
| unreachableChain.tail.tail.tail = unreachableChain; |
| } |
| |
| public followref002TestedClass cleanUnreachable() { |
| followref002TestedClass chain = unreachableChain; |
| unreachableChain = null; |
| return chain; |
| } |
| } |
| |
| /** Class for tested chain object. */ |
| class followref002TestedClass { |
| |
| followref002TestedClass tail = null; |
| |
| boolean zz = true; |
| byte bb = 127; |
| char cc = 'C'; |
| short ss = 1995; |
| int level; |
| long jj = 99999999; |
| float ff = 3.14f; |
| double dd = 3.14d; |
| // String str = "Fake String"; |
| // short[] ssArr = { 128, 256 }; |
| |
| public followref002TestedClass(int length) { |
| this.level = length; |
| if (length > 1) { |
| tail = new followref002TestedClass(length - 1); |
| } |
| } |
| } |