1 /* 2 * Copyright (c) 2007, 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 /* 25 * @test 26 * 27 * @summary converted from VM Testbase nsk/jdwp/ReferenceType/Instances/instances001. 28 * VM Testbase keywords: [quick, jpda, jdwp, feature_jdk6_jpda, vm6, monitoring] 29 * VM Testbase readme: 30 * DESCRIPTION 31 * This test performs checking for 32 * command set: ReferenceType 33 * command: Instances 34 * Test checks that debuggee accept the command packet and 35 * replies with correct reply packet. 36 * Test consists of two compoments: 37 * debugger: instances001 38 * debuggee: instances001a 39 * Debugger uses nsk.share support classes to launch debuggee 40 * and obtain Transport object, that represents JDWP transport channel. 41 * Also communication channel (IOPipe) is established between 42 * debugger and debuggee to exchange with execution commands. 43 * For maxInstances in [1, 0, Interger.MAX_VALUE] 44 * do 45 * Debugger obtains referenceTypeID for 'nsk.share.jdwp.ReferenceType.instances.instances001.TestClass'. 46 * Then, debugger creates command packet for Instances command with the 47 * found referenceTypeID and maxInstances as an arguments, writes packet to the transport 48 * channel, and waits for a reply packet. 49 * When reply packet is received, debugger parses the packet structure 50 * and extracts number of instances and instance's ids. 51 * Debugger checks that received number of instances is correct: 52 * - if maxInstances=1 only 1 instance should be returned 53 * - if maxInstances=0 or maxInstances=Integer.MAX_VALUE all instances should be returned 54 * done 55 * Also, test performs checks for cases when incorrect data is sent in command. 56 * Following cases are tested: 57 * - create command with maxInstances < 0, expect ILLEGAL_ARGUMENT error 58 * - create command with typeID = -1, expect INVALID_OBJECT error 59 * - create command with threadID instead of referenceTypeID, expect INVALID_CLASS error 60 * Finally, debugger sends debuggee signal to quit, waits for it exits 61 * and exits too with the proper exit code. 62 * 63 * @library /vmTestbase /test/hotspot/jtreg/vmTestbase 64 * /test/lib 65 * @run driver jdk.test.lib.FileInstaller . . 66 * @build nsk.jdwp.ReferenceType.Instances.instances001.instances001 67 * @run main/othervm/native PropertyResolvingWrapper 68 * nsk.jdwp.ReferenceType.Instances.instances001.instances001 69 * -arch=${os.family}-${os.simpleArch} 70 * -verbose 71 * -waittime=5 72 * -debugee.vmkind=java 73 * -transport.address=dynamic 74 * -debugee.vmkeys="-Xmx128M ${test.vm.opts} ${test.java.opts}" 75 */ 76 77 package nsk.jdwp.ReferenceType.Instances.instances001; 78 79 import java.io.*; 80 import nsk.share.Consts; 81 import nsk.share.jdwp.*; 82 import nsk.share.jpda.AbstractDebuggeeTest; 83 84 public class instances001 extends TestDebuggerType1 { 85 protected String getDebugeeClassName() { 86 return nsk.jdwp.ReferenceType.Instances.instances001.instances001a.class.getName(); 87 } 88 89 public static void main(String argv[]) { 90 System.exit(run(argv, System.out) + Consts.JCK_STATUS_BASE); 91 } 92 93 public static int run(String argv[], PrintStream out) { 94 return new instances001().runIt(argv, out); 95 } 96 97 private void testClass(long typeID, int maxInstances, int expectedInstances, boolean expectError, int errorCode) { 98 try { 99 int JDWP_COMMAND_ID = JDWP.Command.ReferenceType.Instances; 100 101 log.display("Create command: " + JDWP.commandNames.get(JDWP_COMMAND_ID)); 102 log.display("referenceType = " + typeID); 103 log.display("maxInstances = " + maxInstances); 104 105 CommandPacket command = new CommandPacket(JDWP_COMMAND_ID); 106 command.addReferenceTypeID(typeID); 107 command.addInt(maxInstances); 108 command.setLength(); 109 110 log.display("Sending command packet:\n" + command); 111 transport.write(command); 112 113 ReplyPacket reply; 114 115 reply = getReply(command, expectError, errorCode); 116 117 if (expectError) 118 return; 119 120 int instances = reply.getInt(); 121 log.display("instances = " + instances); 122 123 // check that correct value of 'instances' was received 124 if (instances != expectedInstances) { 125 setSuccess(false); 126 log.complain("Unexpected 'instances' value: " + instances + ", expected is " + expectedInstances); 127 } 128 129 for (int i = 0; i < instances; i++) { 130 JDWP.Value value = reply.getValue(); 131 log.display("tagged-ObjectID = " + value); 132 } 133 134 if (!reply.isParsed()) { 135 setSuccess(false); 136 log.complain("Extra trailing bytes found in reply packet at: " + reply.currentPosition()); 137 } 138 } catch (Exception e) { 139 setSuccess(false); 140 log.complain("Caught exception while testing JDWP command: " + e); 141 e.printStackTrace(log.getOutStream()); 142 } 143 } 144 145 public void doTest() { 146 // force GC in debuggee VM to avoid collection of weak references during test execution 147 forceGC(); 148 pipe.println(instances001a.COMMAND_CREATE_TEST_INSTANCES); 149 150 if (!isDebuggeeReady()) 151 return; 152 153 int expectedInstances = instances001a.expectedCount; 154 155 String testClassName = nsk.jdwp.ReferenceType.Instances.instances001.TestClass.class.getName(); 156 157 long typeID = debuggee.getReferenceTypeID(createTypeSignature(testClassName)); 158 159 160 // create command with maxInstances=1, only 1 instance should be returned 161 testClass(typeID, 1, 1, false, 0); 162 // create command with maxInstances=0, all instances should be returned 163 testClass(typeID, 0, expectedInstances, false, 0); 164 // create command with maxInstances=Integer.MAX_VALUE, all instances should be returned 165 testClass(typeID, Integer.MAX_VALUE, expectedInstances, false, 0); 166 167 // create command with maxInstances < 0, expect ILLEGAL_ARGUMENT error 168 testClass(typeID, -1, expectedInstances, true, JDWP.Error.ILLEGAL_ARGUMENT); 169 170 // create command with typeID = 1, expect INVALID_OBJECT error 171 testClass(-1, Integer.MAX_VALUE, expectedInstances, true, JDWP.Error.INVALID_OBJECT); 172 173 // create command with threadID instead of referenceTypeID, expect INVALID_CLASS error 174 testClass(debuggee.getThreadID("main"), Integer.MAX_VALUE, expectedInstances, true, JDWP.Error.INVALID_CLASS); 175 176 // if GC occurs during test the results should be ignored 177 resetStatusIfGC(); 178 } 179 }