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);
}
}
