| /* |
| * Copyright (c) 2002, 2018, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package nsk.jdi.BScenarios.hotswap; |
| |
| import nsk.share.*; |
| import nsk.share.jpda.*; |
| import nsk.share.jdi.*; |
| |
| import com.sun.jdi.*; |
| import com.sun.jdi.request.*; |
| import com.sun.jdi.event.*; |
| |
| import java.util.*; |
| import java.io.*; |
| |
| /** |
| * This test is from the group of so-called Borland's scenarios and |
| * implements the following test case: |
| * Suite 3 - Hot Swap |
| * Test case: TC2 |
| * Description: Before point of execution, same method |
| * Steps: 1.Set breakpoint at line 24 (call to b() |
| * from a()) |
| * 2.Debug Main |
| * 3.Insert as line before point of |
| * execution: System.err.println("foo"); |
| * 4.Smart Swap |
| * 5.Set Smart PopFrame to beginging of |
| * method a() |
| * 6.Resume |
| * X. Prints out "foo" and hits breakpoint |
| * on line 24 |
| * 7.Resume |
| * X. Prints numbers |
| * The description was drown up according to steps under JBuilder. |
| * |
| * Of course, the test has own line numbers and method/class names and |
| * works as follow: |
| * When the test is starting debugee, debugger sets breakpoint at |
| * the 38th line (method <code>method_A</code>). |
| * After the breakpoint is reached, debugger: <br> |
| * - redefines debugee adding a new line into "method_A", <br> |
| * - pops current frame <br> |
| * and resumes debugee. |
| * It is expected the new code will be actual after the redefining and |
| * it doesn't hit breakpoint according to JVMDI Redefine Classes spec : |
| * "...All breakpoints in the class are cleared." |
| */ |
| |
| public class tc02x001 { |
| |
| public final static String UNEXPECTED_STRING = "***Unexpected exception "; |
| |
| private final static String prefix = "nsk.jdi.BScenarios.hotswap."; |
| private final static String debuggerName = prefix + "tc02x001"; |
| private final static String debugeeName = debuggerName + "a"; |
| |
| private final static String newClassFile = "newclass" + File.separator |
| + debugeeName.replace('.',File.separatorChar) |
| + ".class"; |
| |
| private static int exitStatus; |
| private static Log log; |
| private static Debugee debugee; |
| private static long waitTime; |
| private static String classDir; |
| |
| private int expectedEventCount = 5; |
| private int eventCount = 0; |
| |
| private ReferenceType debugeeClass; |
| |
| private static void display(String msg) { |
| log.display(msg); |
| } |
| |
| private static void complain(String msg) { |
| log.complain("debugger FAILURE> " + msg + "\n"); |
| } |
| |
| public static void main(String argv[]) { |
| System.exit(Consts.JCK_STATUS_BASE + run(argv, System.out)); |
| } |
| |
| public static int run(String argv[], PrintStream out) { |
| |
| exitStatus = Consts.TEST_PASSED; |
| |
| tc02x001 thisTest = new tc02x001(); |
| |
| ArgumentHandler argHandler = new ArgumentHandler(argv); |
| log = new Log(out, argHandler); |
| |
| classDir = argv[0]; |
| waitTime = argHandler.getWaitTime() * 60000; |
| |
| Binder binder = new Binder(argHandler, log); |
| debugee = binder.bindToDebugee(debugeeName); |
| |
| try { |
| thisTest.execTest(); |
| } catch (Throwable e) { |
| exitStatus = Consts.TEST_FAILED; |
| e.printStackTrace(); |
| } finally { |
| debugee.endDebugee(); |
| } |
| display("Test finished. exitStatus = " + exitStatus); |
| |
| return exitStatus; |
| } |
| |
| private void execTest() throws Failure { |
| |
| if (!debugee.VM().canRedefineClasses()) { |
| display("\n>>>canRedefineClasses() is false<<< test canceled.\n"); |
| return; |
| } |
| |
| display("\nTEST BEGINS"); |
| display("==========="); |
| |
| EventSet eventSet = null; |
| EventIterator eventIterator = null; |
| Event event; |
| long totalTime = waitTime; |
| long tmp, begin = System.currentTimeMillis(), |
| delta = 0; |
| boolean exit = false; |
| |
| EventRequestManager evm = debugee.getEventRequestManager(); |
| ClassPrepareRequest req = evm.createClassPrepareRequest(); |
| req.addClassFilter(debugeeName); |
| req.enable(); |
| debugee.resume(); |
| |
| while (totalTime > 0 && !exit) { |
| if (eventIterator == null || !eventIterator.hasNext()) { |
| try { |
| eventSet = debugee.VM().eventQueue().remove(totalTime); |
| } catch (InterruptedException e) { |
| new Failure(e); |
| } |
| if (eventSet != null) { |
| eventIterator = eventSet.eventIterator(); |
| } else { |
| eventIterator = null; |
| } |
| } |
| if (eventIterator != null) { |
| while (eventIterator.hasNext()) { |
| event = eventIterator.nextEvent(); |
| // display("\n event ===>>> " + event); |
| |
| if (event instanceof ClassPrepareEvent) { |
| display("\n event ===>>> " + event); |
| debugeeClass = ((ClassPrepareEvent )event).referenceType(); |
| display("Tested class\t:" + debugeeClass.name()); |
| debugee.setBreakpoint(debugeeClass, |
| tc02x001a.brkpMethodName, |
| tc02x001a.brkpLineNumber); |
| |
| debugee.resume(); |
| eventCount++; |
| |
| } else if (event instanceof BreakpointEvent) { |
| display("\n event ===>>> " + event); |
| switch (eventCount) { |
| case 1: |
| display("redefining..."); |
| redefineDebugee(); |
| popFrames(((BreakpointEvent )event).thread()); |
| createMethodExitRequest(debugeeClass); |
| |
| break; |
| |
| default: |
| complain("Unexpected breakpoint event"); |
| exitStatus = Consts.TEST_FAILED; |
| } |
| eventCount++; |
| hitBreakpoint((BreakpointEvent )event); |
| debugee.resume(); |
| |
| } else if (event instanceof MethodExitEvent) { |
| display("\n event ===>>> " + event); |
| hitMethodExit((MethodExitEvent)event); |
| eventCount++; |
| debugee.resume(); |
| |
| } else if (event instanceof VMDeathEvent) { |
| exit = true; |
| break; |
| } else if (event instanceof VMDisconnectEvent) { |
| exit = true; |
| break; |
| } // if |
| } // while |
| } // if |
| tmp = System.currentTimeMillis(); |
| delta = tmp - begin; |
| totalTime -= delta; |
| begin = tmp; |
| } |
| |
| if (eventCount != expectedEventCount) { |
| if (totalTime <= 0) { |
| complain("out of wait time..."); |
| } |
| complain("expecting " + expectedEventCount |
| + " events, but " |
| + eventCount + " events arrived."); |
| exitStatus = Consts.TEST_FAILED; |
| } |
| |
| display("============="); |
| display("TEST FINISHES\n"); |
| } |
| |
| private void redefineDebugee() { |
| Map<? extends com.sun.jdi.ReferenceType,byte[]> mapBytes; |
| boolean alreadyComplained = false; |
| mapBytes = mapClassToBytes(newClassFile); |
| try { |
| debugee.VM().redefineClasses(mapBytes); |
| } catch (Exception e) { |
| throw new Failure(UNEXPECTED_STRING + e); |
| } |
| } |
| |
| private void popFrames(ThreadReference thread) { |
| try { |
| StackFrame frame = thread.frame(0); |
| thread.popFrames(frame); |
| } catch (IncompatibleThreadStateException e) { |
| throw new Failure(UNEXPECTED_STRING + e); |
| } |
| } |
| |
| private Map<? extends com.sun.jdi.ReferenceType,byte[]> mapClassToBytes(String fileName) { |
| display("class-file\t:" + fileName); |
| File fileToBeRedefined = new File(classDir + File.separator + fileName); |
| int fileToRedefineLength = (int )fileToBeRedefined.length(); |
| byte[] arrayToRedefine = new byte[fileToRedefineLength]; |
| |
| FileInputStream inputFile; |
| try { |
| inputFile = new FileInputStream(fileToBeRedefined); |
| } catch (FileNotFoundException e) { |
| throw new Failure(UNEXPECTED_STRING + e); |
| } |
| |
| try { |
| inputFile.read(arrayToRedefine); |
| inputFile.close(); |
| } catch (IOException e) { |
| throw new Failure(UNEXPECTED_STRING + e); |
| } |
| HashMap<com.sun.jdi.ReferenceType,byte[]> mapForClass = new HashMap<com.sun.jdi.ReferenceType,byte[]>(); |
| mapForClass.put(debugeeClass, arrayToRedefine); |
| return mapForClass; |
| } |
| |
| private MethodExitRequest createMethodExitRequest(ReferenceType refType) { |
| EventRequestManager evm = debugee.getEventRequestManager(); |
| MethodExitRequest request = evm.createMethodExitRequest(); |
| request.addClassFilter(refType); |
| request.enable(); |
| return request; |
| } |
| |
| private void hitBreakpoint(BreakpointEvent event) { |
| locationInfo(event); |
| if (event.location().lineNumber() != tc02x001a.checkLastLine) { |
| complain("BreakpointEvent steps to line " + event.location().lineNumber() |
| + ", expected line number is " |
| + tc02x001a.checkLastLine); |
| exitStatus = Consts.TEST_FAILED; |
| } else { |
| display("!!!BreakpointEvent steps to the expected line " |
| + event.location().lineNumber() + "!!!"); |
| } |
| display(""); |
| } |
| |
| private void hitMethodExit(MethodExitEvent event) { |
| |
| locationInfo(event); |
| |
| Method mthd = ((MethodExitEvent )event).method(); |
| if (mthd.name().compareTo(tc02x001a.brkpMethodName) == 0) { |
| Field fld = debugeeClass.fieldByName(tc02x001a.fieldToCheckName); |
| Value val = debugeeClass.getValue(fld); |
| if (((IntegerValue )val).value() != tc02x001a.CHANGED_VALUE) { |
| complain("Unexpected: new code is not actual " |
| + "after resetting frames"); |
| complain("Unexpected value of checked field: " |
| + val); |
| exitStatus = Consts.TEST_FAILED; |
| } else { |
| display("!!!Expected: new code is actual " |
| + "after resetting frames!!!"); |
| } |
| } |
| display(""); |
| } |
| |
| private void locationInfo(LocatableEvent event) { |
| display("event info:"); |
| display("\tthread\t- " + event.thread().name()); |
| try { |
| display("\tsource\t- " + event.location().sourceName()); |
| } catch (AbsentInformationException e) { |
| } |
| display("\tmethod\t- " + event.location().method().name()); |
| display("\tline\t- " + event.location().lineNumber()); |
| } |
| } |