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/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 * @run driver jdk.test.lib.FileInstaller . . 47 * @build nsk.jdi.ThreadReference.forceEarlyReturn.forceEarlyReturn002.forceEarlyReturn002 48 * nsk.jdi.ThreadReference.forceEarlyReturn.forceEarlyReturn002.forceEarlyReturn002a 49 * @run main/othervm PropertyResolvingWrapper 50 * nsk.jdi.ThreadReference.forceEarlyReturn.forceEarlyReturn002.forceEarlyReturn002 51 * -verbose 52 * -arch=${os.family}-${os.simpleArch} 53 * -waittime=5 54 * -debugee.vmkind=java 55 * -transport.address=dynamic 56 * "-debugee.vmkeys=${test.vm.opts} ${test.java.opts}" 57 */ 58 59 package nsk.jdi.ThreadReference.forceEarlyReturn.forceEarlyReturn002; 60 61 import java.io.PrintStream; 62 import com.sun.jdi.*; 63 import com.sun.jdi.request.*; 64 import com.sun.jdi.event.*; 65 import nsk.share.Consts; 66 import nsk.share.jdi.ForceEarlyReturnDebugger; 67 68 public class forceEarlyReturn002 extends ForceEarlyReturnDebugger { main(String argv[])69 public static void main(String argv[]) { 70 System.exit(run(argv, System.out) + Consts.JCK_STATUS_BASE); 71 } 72 debuggeeClassName()73 public String debuggeeClassName() { 74 return forceEarlyReturn002a.class.getName(); 75 } 76 run(String argv[], PrintStream out)77 public static int run(String argv[], PrintStream out) { 78 return new forceEarlyReturn002().runIt(argv, out); 79 } 80 doTest()81 public void doTest() { 82 // initialize breakpoint 83 84 ReferenceType referenceType = debuggee.classByName(ClassUsingTestClass.class.getName()); 85 86 BreakpointRequest breakpointRequest = debuggee.makeBreakpoint(referenceType, 87 ClassUsingTestClass.breakpointMethodName, 88 ClassUsingTestClass.breakpointLine); 89 90 breakpointRequest.setSuspendPolicy(EventRequest.SUSPEND_EVENT_THREAD); 91 breakpointRequest.enable(); 92 93 pipe.println(forceEarlyReturn002a.COMMAND_CALL_OBJECT_METHOD); 94 95 BreakpointEvent breakPointEvent = waitForBreakpoint(breakpointRequest); 96 97 // if no breakpoint happened then test failed, stop testing 98 if (breakPointEvent == null) 99 return; 100 101 /* 102 * Test can't guarantee that TestClass1 isn't loaded in the debuggee VM (it isn't loaded 103 * if VM implements lazy loading). Here test checks that TestClass1 isn't loaded and 104 * if class is really absent in the debuggee VM it is possible to check ClassNotLoadedException. 105 */ 106 boolean testClassIsLoaded = false; 107 108 ClassLoaderReference classLoader = debuggee.classByName(forceEarlyReturn002a.class.getName()).classLoader(); 109 for (ReferenceType loadedClass : classLoader.visibleClasses()) { 110 if (loadedClass.name().equals("nsk.share.jdi.TestClass1")) { 111 log.display("WARNING: TestClass1 is loaded in the debuggee VM, can't test ClassNotLoadedException"); 112 testClassIsLoaded = true; 113 break; 114 } 115 } 116 117 ThreadReference threadReference = debuggee.threadByName(forceEarlyReturn002a.mainThreadName); 118 119 try { 120 if (testClassIsLoaded) { 121 threadReference.forceEarlyReturn(null); 122 } else { 123 try { 124 threadReference.forceEarlyReturn(threadReference); 125 setSuccess(false); 126 log.complain("Expected 'ClassNotLoadedException' was not thrown"); 127 } catch (ClassNotLoadedException e) { 128 log.display("Got expected ClassNotLoadedException"); 129 } 130 } 131 } catch (Exception e) { 132 unexpectedException(e); 133 } 134 135 debuggee.resume(); 136 137 if (!isDebuggeeReady()) 138 return; 139 140 // after this command test class should be loaded 141 pipe.println(forceEarlyReturn002a.COMMAND_LOAD_CLASS_AND_CALL_OBJECT_METHOD); 142 143 breakPointEvent = waitForBreakpoint(breakpointRequest); 144 145 // if no breakpoint happened then test failed, stop testing 146 if (breakPointEvent == null) 147 return; 148 149 // get value for early return 150 ObjectReference returnValue = (ObjectReference) referenceType.getValue(referenceType.fieldByName("expectedValue")); 151 152 try { 153 // don't expect any exception 154 threadReference.forceEarlyReturn(returnValue); 155 } catch (Exception e) { 156 setSuccess(false); 157 log.complain("Unexpected exception: " + e); 158 e.printStackTrace(log.getOutStream()); 159 } 160 161 testMethodExitEvent(threadReference, ClassUsingTestClass.breakpointMethodName); 162 163 if (!isDebuggeeReady()) 164 return; 165 } 166 } 167