1 /* 2 * Copyright (c) 2007, 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 * @test 26 * 27 * @summary converted from VM Testbase nsk/jdi/ThreadReference/forceEarlyReturn/forceEarlyReturn002. 28 * VM Testbase keywords: [quick, jpda, jdi, feature_jdk6_jpda, vm6] 29 * VM Testbase readme: 30 * DESCRIPTION 31 * The test checks that a result of the method com.sun.jdi.forceEarlyReturn(Value value) 32 * complies with its specification. The test checks: 33 * - attempt to call forceEarlyReturn for the type which has not yet been loaded throws ClassNotLoadedException 34 * - MethodExitEvent is generated as it would be in a normal return 35 * Test scenario: 36 * Debugger VM enable breakpoint in test method which return type is 'nsk.share.jdi.TestClass1', 37 * force debugee call this method and when debugee VM stop at breakpoint, call forceEarlyReturn(). 38 * ClassNotLoadedException should be thrown (expect that nsk.share.jdi.TestClass1 isn't loaded in debuggee VM). 39 * Debugger VM force debuggee VM create instance of 'nsk.share.jdi.TestClass1' and call test method again. 40 * When debugee VM stop at breakpoint, call forceEarlyReturn() and check that no exception is thrown. 41 * Debugee checks that correct value is returned from test method after force return. 42 * Debugger checks that MethodExitEvent is generated after forceEarlyReturn. 43 * 44 * @library /vmTestbase 45 * /test/lib 46 * @build nsk.jdi.ThreadReference.forceEarlyReturn.forceEarlyReturn002.forceEarlyReturn002 47 * nsk.jdi.ThreadReference.forceEarlyReturn.forceEarlyReturn002.forceEarlyReturn002a 48 * @run main/othervm 49 * nsk.jdi.ThreadReference.forceEarlyReturn.forceEarlyReturn002.forceEarlyReturn002 50 * -verbose 51 * -arch=${os.family}-${os.simpleArch} 52 * -waittime=5 53 * -debugee.vmkind=java 54 * -transport.address=dynamic 55 * -debugee.vmkeys="${test.vm.opts} ${test.java.opts}" 56 */ 57 58 package nsk.jdi.ThreadReference.forceEarlyReturn.forceEarlyReturn002; 59 60 import java.io.PrintStream; 61 import com.sun.jdi.*; 62 import com.sun.jdi.request.*; 63 import com.sun.jdi.event.*; 64 import nsk.share.Consts; 65 import nsk.share.jdi.ForceEarlyReturnDebugger; 66 67 public class forceEarlyReturn002 extends ForceEarlyReturnDebugger { main(String argv[])68 public static void main(String argv[]) { 69 System.exit(run(argv, System.out) + Consts.JCK_STATUS_BASE); 70 } 71 debuggeeClassName()72 public String debuggeeClassName() { 73 return forceEarlyReturn002a.class.getName(); 74 } 75 run(String argv[], PrintStream out)76 public static int run(String argv[], PrintStream out) { 77 return new forceEarlyReturn002().runIt(argv, out); 78 } 79 doTest()80 public void doTest() { 81 // initialize breakpoint 82 83 ReferenceType referenceType = debuggee.classByName(ClassUsingTestClass.class.getName()); 84 85 BreakpointRequest breakpointRequest = debuggee.makeBreakpoint(referenceType, 86 ClassUsingTestClass.breakpointMethodName, 87 ClassUsingTestClass.breakpointLine); 88 89 breakpointRequest.setSuspendPolicy(EventRequest.SUSPEND_EVENT_THREAD); 90 breakpointRequest.enable(); 91 92 pipe.println(forceEarlyReturn002a.COMMAND_CALL_OBJECT_METHOD); 93 94 BreakpointEvent breakPointEvent = waitForBreakpoint(breakpointRequest); 95 96 // if no breakpoint happened then test failed, stop testing 97 if (breakPointEvent == null) 98 return; 99 100 /* 101 * Test can't guarantee that TestClass1 isn't loaded in the debuggee VM (it isn't loaded 102 * if VM implements lazy loading). Here test checks that TestClass1 isn't loaded and 103 * if class is really absent in the debuggee VM it is possible to check ClassNotLoadedException. 104 */ 105 boolean testClassIsLoaded = false; 106 107 ClassLoaderReference classLoader = debuggee.classByName(forceEarlyReturn002a.class.getName()).classLoader(); 108 for (ReferenceType loadedClass : classLoader.visibleClasses()) { 109 if (loadedClass.name().equals("nsk.share.jdi.TestClass1")) { 110 log.display("WARNING: TestClass1 is loaded in the debuggee VM, can't test ClassNotLoadedException"); 111 testClassIsLoaded = true; 112 break; 113 } 114 } 115 116 ThreadReference threadReference = debuggee.threadByName(forceEarlyReturn002a.mainThreadName); 117 118 try { 119 if (testClassIsLoaded) { 120 threadReference.forceEarlyReturn(null); 121 } else { 122 try { 123 threadReference.forceEarlyReturn(threadReference); 124 setSuccess(false); 125 log.complain("Expected 'ClassNotLoadedException' was not thrown"); 126 } catch (ClassNotLoadedException e) { 127 log.display("Got expected ClassNotLoadedException"); 128 } 129 } 130 } catch (Exception e) { 131 unexpectedException(e); 132 } 133 134 debuggee.resume(); 135 136 if (!isDebuggeeReady()) 137 return; 138 139 // after this command test class should be loaded 140 pipe.println(forceEarlyReturn002a.COMMAND_LOAD_CLASS_AND_CALL_OBJECT_METHOD); 141 142 breakPointEvent = waitForBreakpoint(breakpointRequest); 143 144 // if no breakpoint happened then test failed, stop testing 145 if (breakPointEvent == null) 146 return; 147 148 // get value for early return 149 ObjectReference returnValue = (ObjectReference) referenceType.getValue(referenceType.fieldByName("expectedValue")); 150 151 try { 152 // don't expect any exception 153 threadReference.forceEarlyReturn(returnValue); 154 } catch (Exception e) { 155 setSuccess(false); 156 log.complain("Unexpected exception: " + e); 157 e.printStackTrace(log.getOutStream()); 158 } 159 160 testMethodExitEvent(threadReference, ClassUsingTestClass.breakpointMethodName); 161 162 if (!isDebuggeeReady()) 163 return; 164 } 165 } 166