1 /* 2 * Copyright (c) 2017, 2020, 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 25 /* 26 * @test 27 * 28 * @summary converted from VM Testbase nsk/jdwp/ThreadReference/SuspendCount/suspendcnt001. 29 * VM Testbase keywords: [quick, jpda, jdwp] 30 * VM Testbase readme: 31 * DESCRIPTION 32 * This test performs checking for 33 * command set: ThreadReference 34 * command: SuspendCount 35 * Test checks that debugee accept the command packet and 36 * replies with correct reply packet. Also test checks that 37 * returned number of suspend count is equal to real number 38 * of thread suspending attempts. 39 * Test consists of two compoments: 40 * debugger: suspendcnt001 41 * debuggee: suspendcnt001a 42 * First, debugger uses nsk.share support classes to launch debuggee 43 * and obtain Transport object, that represents JDWP transport channel. 44 * Also communication channel (IOPipe) is established between 45 * debugger and debuggee to exchange with synchronization signals. 46 * Next, debugger obtains from debuggee classID for tested thread class 47 * and threadID as the value of a class static field. Debugger suspends 48 * the thread SUSPEND_COUNT times before sending the tested command. 49 * Then, debugger creates command packet for ThreadReference.SuspendCount 50 * command with the found threadID as an argument, writes packet to 51 * the transport channel, and waits for a reply packet. 52 * When reply packet is received, debugger parses the packet structure 53 * and extracts number of suspend count. Also debugger checks that returned 54 * suspend count is not negative and equal to the expected SUSPEND_COUNT. 55 * Finally, debugger resumes suspended thread into debuggee, sends debuggee 56 * signal to quit, waits for it exits and exits too with the proper exit code. 57 * 58 * @library /vmTestbase /test/hotspot/jtreg/vmTestbase 59 * /test/lib 60 * @build nsk.jdwp.ThreadReference.SuspendCount.suspendcnt001 61 * nsk.jdwp.ThreadReference.SuspendCount.suspendcnt001a 62 * @run main/othervm PropertyResolvingWrapper 63 * nsk.jdwp.ThreadReference.SuspendCount.suspendcnt001 64 * -arch=${os.family}-${os.simpleArch} 65 * -verbose 66 * -waittime=5 67 * -debugee.vmkind=java 68 * -transport.address=dynamic 69 * -debugee.vmkeys="${test.vm.opts} ${test.java.opts}" 70 */ 71 72