| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| /** |
| * @author Anatoly F. Bondarenko |
| */ |
| |
| /** |
| * Created on 30.03.2005 |
| */ |
| package org.apache.harmony.jpda.tests.jdwp.VirtualMachine; |
| |
| |
| |
| import java.io.*; |
| |
| import org.apache.harmony.jpda.tests.framework.jdwp.CommandPacket; |
| import org.apache.harmony.jpda.tests.framework.jdwp.JDWPCommands; |
| import org.apache.harmony.jpda.tests.framework.jdwp.JDWPConstants; |
| import org.apache.harmony.jpda.tests.framework.jdwp.ReplyPacket; |
| import org.apache.harmony.jpda.tests.jdwp.share.JDWPSyncTestCase; |
| import org.apache.harmony.jpda.tests.share.JPDADebuggeeSynchronizer; |
| |
| /** |
| * JDWP Unit test for VirtualMachine.RedefineClasses command. |
| */ |
| public class RedefineClassesTest extends JDWPSyncTestCase { |
| |
| static final int testStatusPassed = 0; |
| static final int testStatusFailed = -1; |
| static final String thisCommandName = "VirtualMachine::RedefineClasses command"; |
| static final String checkedClassSignature |
| = "Lorg/apache/harmony/jpda/tests/jdwp/VirtualMachine/RedefineClass_Debuggee;"; |
| static final String byteCodeToRedefineFile = "RedefineByteCode_Debuggee001"; |
| |
| protected String getDebuggeeClassName() { |
| return "org.apache.harmony.jpda.tests.jdwp.VirtualMachine.RedefineClassesDebuggee"; |
| } |
| |
| File findNewClassByteCode() { |
| File foundFile = null; |
| String nameSeparator = File.separator; |
| String pathSeparator = File.pathSeparator; |
| String byteCodeFileNameSuffix = "org" + nameSeparator + "apache" + nameSeparator |
| + "harmony" + nameSeparator + "jpda" + nameSeparator + "tests" + nameSeparator |
| + "jdwp" + nameSeparator + "VirtualMachine" |
| + nameSeparator + byteCodeToRedefineFile; |
| String byteCodeFileName = null; |
| String classPaths = System.getProperty("java.class.path"); |
| int begPos = 0; |
| int classPathsLength = classPaths.length();; |
| |
| for (int i = 0; i <= classPathsLength; i++) { |
| if ( i == classPathsLength ) { |
| if ( begPos == i ) { |
| break; |
| } |
| } else { |
| if ( ! pathSeparator.equals(classPaths.substring(i,i+1))) { |
| continue; |
| } |
| if ( begPos == i ) { |
| begPos++; |
| continue; |
| } |
| } |
| byteCodeFileName = classPaths.substring(begPos,i); |
| if ( ! nameSeparator.equals(classPaths.substring(i-1,i)) ) { |
| byteCodeFileName = byteCodeFileName + nameSeparator; |
| } |
| byteCodeFileName = byteCodeFileName + byteCodeFileNameSuffix; |
| foundFile = new File(byteCodeFileName); |
| if ( foundFile.exists() ) { |
| break; |
| } |
| foundFile = null; |
| begPos = i+1; |
| } |
| return foundFile; |
| } |
| |
| /** |
| * This testcase exercises VirtualMachine.RedefineClasses command. |
| * <BR>At first the test starts RedefineClassesDebuggee which invokes |
| * the 'testMethod()' of RedefineClass_Debuggee class and prints the string |
| * returned by this method before redefining. |
| * <BR> Then the test performs VirtualMachine.RedefineClasses command |
| * for RedefineClass_Debuggee class - the 'testMethod()' is redefined. |
| * Next, the debuggee invokes the 'testMethod()' again and it is expected |
| * that the method returns another resulting string. |
| * The test checks that this resulting string is expected string. |
| */ |
| public void testRedefineClasses001() { |
| String thisTestName = "testClassObject001"; |
| |
| //check capability, relevant for this test |
| logWriter.println("=> Check capability: canRedefineClasses"); |
| if (!debuggeeWrapper.vmMirror.canRedefineClasses()) { |
| logWriter.println("##WARNING: this VM doesn't possess capability: canRedefineClasses"); |
| return; |
| } |
| |
| logWriter.println("==> " + thisTestName + " for " + thisCommandName + ": START..."); |
| synchronizer.receiveMessage(JPDADebuggeeSynchronizer.SGNL_READY); |
| File newClassByteCodeFile = findNewClassByteCode(); |
| if ( newClassByteCodeFile == null ) { |
| logWriter.println |
| ("===> Can NOT find out byte code file for redefine:"); |
| logWriter.println |
| ("===> File name = " + byteCodeToRedefineFile); |
| logWriter.println |
| ("===> Test can NOT be run!"); |
| logWriter.println("==> " + thisTestName + " for " + thisCommandName + ": FINISH"); |
| return; |
| } |
| |
| logWriter.println |
| ("\n=> Send VirtualMachine::ClassesBySignature command and and get checked class referenceTypeID..."); |
| logWriter.println("=> checkedClassSignature = " + checkedClassSignature); |
| CommandPacket classesBySignatureCommand = new CommandPacket( |
| JDWPCommands.VirtualMachineCommandSet.CommandSetID, |
| JDWPCommands.VirtualMachineCommandSet.ClassesBySignatureCommand); |
| classesBySignatureCommand.setNextValueAsString(checkedClassSignature); |
| |
| ReplyPacket classesBySignatureReply = debuggeeWrapper.vmMirror.performCommand(classesBySignatureCommand); |
| classesBySignatureCommand = null; |
| |
| checkReplyPacket(classesBySignatureReply, "VirtualMachine::ClassesBySignature command"); |
| |
| int returnedClassesNumber = classesBySignatureReply.getNextValueAsInt(); |
| logWriter.println("=> ReturnedClassesNumber = " + returnedClassesNumber); |
| if ( returnedClassesNumber != 1 ) { |
| // Number of returned reference types - is NOt used here |
| printErrorAndFail("Unexpected number of classes is returned: " + |
| returnedClassesNumber + |
| ", Expected number = 1"); |
| } |
| |
| classesBySignatureReply.getNextValueAsByte(); |
| // refTypeTag of class - is NOt used here |
| |
| long refTypeID = classesBySignatureReply.getNextValueAsReferenceTypeID(); |
| classesBySignatureReply = null; |
| |
| logWriter.println("=> Checked class referenceTypeID = " + refTypeID); |
| |
| logWriter.println("\n=> Preparing info for " + thisCommandName); |
| logWriter.println |
| ("=> File name with new class byte code to redefine = " + byteCodeToRedefineFile); |
| FileInputStream newClassByteCodeFileInputStream = null; |
| try { |
| newClassByteCodeFileInputStream = new FileInputStream(newClassByteCodeFile); |
| } catch (Throwable thrown) { |
| logWriter.println |
| ("===> Can NOT create FileInputStream for byte code file:"); |
| logWriter.println("===> File name = " + byteCodeToRedefineFile); |
| logWriter.println("===> Exception is thrown: " + thrown); |
| logWriter.println("===> Test can NOT be run!"); |
| logWriter.println("==> " + thisTestName + " for " + thisCommandName + ": FINISH"); |
| return; |
| } |
| int newClassByteCodeSize = 0; |
| try { |
| newClassByteCodeSize = (int)newClassByteCodeFileInputStream.skip(Long.MAX_VALUE); |
| } catch (Throwable thrown) { |
| logWriter.println |
| ("===> Can NOT do FileInputStream.skip() to the end of file:"); |
| logWriter.println("===> File name = " + byteCodeToRedefineFile); |
| logWriter.println("===> Exception is thrown: " + thrown); |
| logWriter.println("===> Test can NOT be run!"); |
| logWriter.println("==> " + thisTestName + " for " + thisCommandName + ": FINISH"); |
| return; |
| } |
| logWriter.println("=> newClassByteCodeSize = " + newClassByteCodeSize); |
| try { |
| newClassByteCodeFileInputStream.close(); |
| } catch (Throwable thrown) { |
| logWriter.println |
| ("===> WARNING: Can NOT close FileInputStream for byte code file:"); |
| logWriter.println("===> File name = " + byteCodeToRedefineFile); |
| logWriter.println("===> Exception is thrown: " + thrown); |
| } |
| newClassByteCodeFileInputStream = null; |
| |
| try { |
| newClassByteCodeFileInputStream = new FileInputStream(newClassByteCodeFile); |
| } catch (Throwable thrown) { |
| logWriter.println |
| ("===> Can NOT re-create FileInputStream for byte code file:"); |
| logWriter.println("===> File name = " + byteCodeToRedefineFile); |
| logWriter.println("===> Exception is thrown: " + thrown); |
| logWriter.println("===> Test can NOT be run!"); |
| logWriter.println("==> " + thisTestName + " for " + thisCommandName + ": FINISH"); |
| return; |
| } |
| |
| CommandPacket checkedCommand = new CommandPacket( |
| JDWPCommands.VirtualMachineCommandSet.CommandSetID, |
| JDWPCommands.VirtualMachineCommandSet.RedefineClassesCommand); |
| checkedCommand.setNextValueAsInt(1); // number of classes to redefine |
| checkedCommand.setNextValueAsReferenceTypeID(refTypeID); |
| checkedCommand.setNextValueAsInt(newClassByteCodeSize); |
| int writtenBytes = 0; |
| int currentByte = 0; |
| while ( true ) { |
| try { |
| currentByte = newClassByteCodeFileInputStream.read(); |
| } catch (Throwable thrown) { |
| logWriter.println |
| ("===> Can NOT read current byte from byte code file:"); |
| logWriter.println("===> File name = " + byteCodeToRedefineFile); |
| logWriter.println("===> Byte number = " + writtenBytes); |
| logWriter.println("===> Exception is thrown: " + thrown); |
| logWriter.println("===> Test can NOT be run!"); |
| logWriter.println("==> " + thisTestName + " for " + thisCommandName + ": FINISH"); |
| return; |
| } |
| if ( currentByte == -1 ) { // EOF is reached |
| break; |
| } |
| checkedCommand.setNextValueAsByte((byte)currentByte); |
| writtenBytes++; |
| } |
| logWriter.println("=> Number of written bytes as new class file = " + writtenBytes); |
| if ( newClassByteCodeSize != writtenBytes ) { |
| logWriter.println("===> WARNING: Number of written bytes != newClassByteCodeSize"); |
| logWriter.println("===> Test can NOT be run!"); |
| logWriter.println("==> " + thisTestName + " for " + thisCommandName + ": FINISH"); |
| return; |
| } |
| |
| logWriter.println("\n=> Send " + thisCommandName + " and check reply..."); |
| |
| ReplyPacket checkedReply = debuggeeWrapper.vmMirror.performCommand(checkedCommand); |
| checkedCommand = null; |
| int[] expectedErrors = { |
| JDWPConstants.Error.NOT_IMPLEMENTED, |
| }; |
| short errorCode = checkedReply.getErrorCode(); |
| if ( errorCode != JDWPConstants.Error.NONE ) { |
| if ( errorCode != JDWPConstants.Error.UNSUPPORTED_VERSION ) { |
| finalSyncMessage = JPDADebuggeeSynchronizer.SGNL_CONTINUE; |
| printErrorAndFail( |
| "## WARNING: A class file for redefine has a version number not supported by this VM" + |
| "\n## File name with byte code = " + byteCodeToRedefineFile + |
| "\n## It should be re-created"); |
| } |
| boolean expectedErr = false; |
| for (int i=0; i < expectedErrors.length; i++) { |
| if ( errorCode == expectedErrors[i] ) { |
| expectedErr = true; |
| break; |
| } |
| } |
| if ( expectedErr ) { |
| logWriter.println("=> " + thisCommandName |
| + " returns expected ERROR = " + errorCode |
| + "(" + JDWPConstants.Error.getName(errorCode) + ")"); |
| logWriter.println |
| ("==> " + thisTestName + " for " + thisCommandName + ": FINISH"); |
| return; |
| } else { |
| finalSyncMessage = JPDADebuggeeSynchronizer.SGNL_CONTINUE; |
| printErrorAndFail(thisCommandName |
| + " returns unexpected ERROR = " + errorCode |
| + "(" + JDWPConstants.Error.getName(errorCode) + ")"); |
| } |
| } |
| logWriter.println("=> " + thisCommandName + " returns reply without any error"); |
| |
| assertAllDataRead(checkedReply); |
| |
| logWriter.println("\n=> Send Debuggee signal to continue and execute redefined testMethod"); |
| synchronizer.sendMessage(JPDADebuggeeSynchronizer.SGNL_CONTINUE); |
| |
| String testMethodResult = synchronizer.receiveMessage(); |
| logWriter.println("=> Redefined testMethod result = \"" + testMethodResult + "\""); |
| if ( testMethodResult.equals("testMethod_Result_After_Redefine") ) { |
| logWriter.println("=> OK - it is expected result"); |
| } else { |
| printErrorAndFail("it is NOT expected result" + |
| "\n Expected result = \"testMethod_Result_After_Redefine\""); |
| } |
| |
| logWriter.println("==> " + thisTestName + " for " + thisCommandName + ": FINISH"); |
| } |
| } |
