private VirtualMachine connect(String bndlPrefix, AttachingConnector connector, Map args) throws DebuggerException { if (bndlPrefix != null) { if (connector.transport().name().equals("dt_shmem")) { Argument a = (Argument) args.get("name"); if (a == null) println(bundle.getString(bndlPrefix + "_shmem_noargs"), ERR_OUT); else println( new MessageFormat(bundle.getString(bndlPrefix + "_shmem")) .format(new Object[] {a.value()}), ERR_OUT); } else if (connector.transport().name().equals("dt_socket")) { Argument name = (Argument) args.get("hostname"); Argument port = (Argument) args.get("port"); if ((name == null) || (port == null)) println(bundle.getString(bndlPrefix + "_socket_noargs"), ERR_OUT); else println( new MessageFormat(bundle.getString(bndlPrefix + "_socket")) .format(new Object[] {name.value(), port.value()}), ERR_OUT); } else println(bundle.getString(bndlPrefix), ERR_OUT); } // launch VM try { // S ystem.out.println ("attach to:" + ac + " : " + password); // NOI18N return connector.attach(args); } catch (Exception e) { finishDebugger(); throw new DebuggerException( new MessageFormat(bundle.getString("EXC_While_connecting_to_debuggee")) .format(new Object[] {e.toString()}), e); } }
// we set an observer to detect VirtualMachineImpl.dispose call // and on dispose we add corresponding VirtualMachineImpl.class to // free VirtualMachimeImpl Class list. protected static void setVMDisposeObserver(final Object vm) { try { Method setDisposeObserverMethod = vm.getClass() .getDeclaredMethod("setDisposeObserver", new Class[] {java.util.Observer.class}); setDisposeObserverMethod.setAccessible(true); setDisposeObserverMethod.invoke( vm, new Object[] { new Observer() { public void update(Observable o, Object data) { if (DEBUG) { System.out.println("got VM.dispose notification"); } addFreeVMImplClass(vm.getClass()); } } }); } catch (Exception exp) { if (DEBUG) { System.out.println("setVMDisposeObserver() got an exception:"); exp.printStackTrace(); } } }
public VirtualMachine attach(Map arguments) throws IOException, IllegalConnectorArgumentsException { int pid = 0; try { pid = Integer.parseInt(argument(ARG_PID, arguments).value()); } catch (NumberFormatException nfe) { throw (IllegalConnectorArgumentsException) new IllegalConnectorArgumentsException(nfe.getMessage(), ARG_PID).initCause(nfe); } checkProcessAttach(pid); VirtualMachine myVM = null; try { try { Class vmImplClass = loadVirtualMachineImplClass(); myVM = createVirtualMachine(vmImplClass, pid); } catch (InvocationTargetException ite) { Class vmImplClass = handleVMVersionMismatch(ite); if (vmImplClass != null) { return createVirtualMachine(vmImplClass, pid); } else { throw ite; } } } catch (Exception ee) { if (DEBUG) { System.out.println("VirtualMachineImpl() got an exception:"); ee.printStackTrace(); System.out.println("pid = " + pid); } throw (IOException) new IOException().initCause(ee); } setVMDisposeObserver(myVM); return myVM; }
/** * If the causal chain has a sun.jvm.hotspot.runtime.VMVersionMismatchException, attempt to load * VirtualMachineImpl class for target VM version. */ protected static Class handleVMVersionMismatch(InvocationTargetException ite) { Throwable cause = ite.getCause(); if (DEBUG) { System.out.println("checking for version mismatch..."); } while (cause != null) { try { if (isVMVersionMismatch(cause)) { if (DEBUG) { System.out.println("Triggering cross VM version support..."); } return loadVirtualMachineImplClass(getVMVersion(cause)); } } catch (Exception exp) { if (DEBUG) { System.out.println("failed to load VirtualMachineImpl class"); exp.printStackTrace(); } return null; } cause = cause.getCause(); } return null; }
/** * Move through a list of stack frames, searching for references to code found in the current * sketch. Return with a RunnerException that contains the location of the error, or if nothing is * found, just return with a RunnerException that wraps the error message itself. */ protected SketchException findException( String message, ObjectReference or, ThreadReference thread) { try { // use to dump the stack for debugging // for (StackFrame frame : thread.frames()) { // System.out.println("frame: " + frame); // } List<StackFrame> frames = thread.frames(); for (StackFrame frame : frames) { try { Location location = frame.location(); String filename = null; filename = location.sourceName(); int lineNumber = location.lineNumber() - 1; SketchException rex = build.placeException(message, filename, lineNumber); if (rex != null) { return rex; } } catch (AbsentInformationException e) { // Any of the thread.blah() methods can throw an AbsentInformationEx // if that bit of data is missing. If so, just write out the error // message to the console. // e.printStackTrace(); // not useful exception = new SketchException(message); exception.hideStackTrace(); listener.statusError(exception); } } } catch (IncompatibleThreadStateException e) { // This shouldn't happen, but if it does, print the exception in case // it's something that needs to be debugged separately. e.printStackTrace(); } // before giving up, try to extract from the throwable object itself // since sometimes exceptions are re-thrown from a different context try { // assume object reference is Throwable, get stack trace Method method = ((ClassType) or.referenceType()) .concreteMethodByName("getStackTrace", "()[Ljava/lang/StackTraceElement;"); ArrayReference result = (ArrayReference) or.invokeMethod( thread, method, new ArrayList<Value>(), ObjectReference.INVOKE_SINGLE_THREADED); // iterate through stack frames and pull filename and line number for each for (Value val : result.getValues()) { ObjectReference ref = (ObjectReference) val; method = ((ClassType) ref.referenceType()) .concreteMethodByName("getFileName", "()Ljava/lang/String;"); StringReference strref = (StringReference) ref.invokeMethod( thread, method, new ArrayList<Value>(), ObjectReference.INVOKE_SINGLE_THREADED); String filename = strref == null ? "Unknown Source" : strref.value(); method = ((ClassType) ref.referenceType()).concreteMethodByName("getLineNumber", "()I"); IntegerValue intval = (IntegerValue) ref.invokeMethod( thread, method, new ArrayList<Value>(), ObjectReference.INVOKE_SINGLE_THREADED); int lineNumber = intval.intValue() - 1; SketchException rex = build.placeException(message, filename, lineNumber); if (rex != null) { return rex; } } // for (Method m : ((ClassType) or.referenceType()).allMethods()) { // System.out.println(m + " | " + m.signature() + " | " + m.genericSignature()); // } // Implemented for 2.0b9, writes a stack trace when there's an internal error inside core. method = ((ClassType) or.referenceType()).concreteMethodByName("printStackTrace", "()V"); // System.err.println("got method " + method); or.invokeMethod( thread, method, new ArrayList<Value>(), ObjectReference.INVOKE_SINGLE_THREADED); } catch (Exception e) { e.printStackTrace(); } // Give up, nothing found inside the pile of stack frames SketchException rex = new SketchException(message); // exception is being created /here/, so stack trace is not useful rex.hideStackTrace(); return rex; }
private VirtualMachine launch(DebuggerInfo info) throws DebuggerException { // create process & read password for local debugging // create main class & arguments ............................................... StringBuffer sb = new StringBuffer(); sb.append(mainClassName); String[] infoArgs = info.getArguments(); int i, k = infoArgs.length; for (i = 0; i < k; i++) sb.append(" \"").append(infoArgs[i]).append('"'); // NOI18N String main = new String(sb); // create connector .............................................................. VirtualMachineManager vmm = Bootstrap.virtualMachineManager(); java.util.List lcs = vmm.launchingConnectors(); k = lcs.size(); for (i = 0; i < k; i++) if (((LaunchingConnector) lcs.get(i)).name().indexOf("RawCommandLineLaunch") >= 0) // NOI18N break; if (i == k) { finishDebugger(); throw new DebuggerException( new MessageFormat(bundle.getString("EXC_Cannot_find_launcher")) .format( new Object[] { "RawCommandLineLaunch" // NOI18N })); } LaunchingConnector lc = (LaunchingConnector) lcs.get(i); String transport = lc.transport().name(); // create commandLine & NbProcessDescriptor .............................. NbProcessDescriptor debugerProcess; if (info instanceof ProcessDebuggerInfo) debugerProcess = ((ProcessDebuggerInfo) info).getDebuggerProcess(); else debugerProcess = ProcessDebuggerType.DEFAULT_DEBUGGER_PROCESS; // generate password String password; if (transport.equals("dt_shmem")) { // NOI18N connector = getAttachingConnectorFor("dt_shmem"); password = generatePassword(); args = connector.defaultArguments(); ((Argument) args.get("name")).setValue(password); } else { try { java.net.ServerSocket ss = new java.net.ServerSocket(0); password = "" + ss.getLocalPort(); // NOI18N ss.close(); } catch (java.io.IOException e) { finishDebugger(); throw new DebuggerException( new MessageFormat(bundle.getString("EXC_Cannot_find_empty_local_port")) .format(new Object[] {e.toString()})); } connector = getAttachingConnectorFor("dt_socket"); args = connector.defaultArguments(); ((Argument) args.get("port")).setValue(password); } HashMap map = Utils.processDebuggerInfo( info, "-Xdebug -Xnoagent -Xrunjdwp:transport=" + // NOI18N transport + ",address=" + // NOI18N password + ",suspend=y ", // NOI18N main); MapFormat format = new MapFormat(map); String commandLine = format.format( debugerProcess.getProcessName() + " " + // NOI18N debugerProcess.getArguments()); println(commandLine, ERR_OUT); /* We mus wait on process start to connect... try { process = debugerProcess.exec (format); } catch (java.io.IOException exc) { finishDebugger (); throw new DebuggerException ( new MessageFormat (bundle.getString ("EXC_While_create_debuggee")). format (new Object[] { debugerProcess.getProcessName (), exc.toString () }), exc ); } return connect ( null, connector, args );*/ /* S ystem.out.println ("attaching: "); Utils.showConnectors (vmm.attachingConnectors ()); S ystem.out.println ("launching: "); Utils.showConnectors (vmm.launchingConnectors ()); S ystem.out.println ("listening: "); Utils.showConnectors (vmm.listeningConnectors ());*/ // set debugger-start arguments Map params = lc.defaultArguments(); ((Argument) params.get("command")) .setValue( // NOI18N commandLine); ((Argument) params.get("address")) .setValue( // NOI18N password); // launch VM try { return lc.launch(params); } catch (VMStartException exc) { showOutput(process = exc.process(), ERR_OUT, ERR_OUT); finishDebugger(); throw new DebuggerException( new MessageFormat(bundle.getString("EXC_While_create_debuggee")) .format( new Object[] {format.format(debugerProcess.getProcessName()), exc.toString()}), exc); } catch (Exception exc) { finishDebugger(); throw new DebuggerException( new MessageFormat(bundle.getString("EXC_While_create_debuggee")) .format( new Object[] {format.format(debugerProcess.getProcessName()), exc.toString()}), exc); } }