private void dumpFailedLaunchInfo(Process process) {
try {
dumpStream(process.getErrorStream());
dumpStream(process.getInputStream());
} catch (IOException e) {
MessageOutput.println("Unable to display process output:", e.getMessage());
}
}
/* attach to running target vm */
private VirtualMachine attachTarget() {
AttachingConnector attacher = (AttachingConnector) connector;
try {
return attacher.attach(connectorArgs);
} catch (IOException ioe) {
ioe.printStackTrace();
MessageOutput.fatalError("Unable to attach to target VM.");
} catch (IllegalConnectorArgumentsException icae) {
icae.printStackTrace();
MessageOutput.fatalError("Internal debugger error.");
}
return null; // Shuts up the compiler
}
/* listen for connection from target vm */
private VirtualMachine listenTarget() {
ListeningConnector listener = (ListeningConnector) connector;
try {
String retAddress = listener.startListening(connectorArgs);
MessageOutput.println("Listening at address:", retAddress);
vm = listener.accept(connectorArgs);
listener.stopListening(connectorArgs);
return vm;
} catch (IOException ioe) {
ioe.printStackTrace();
MessageOutput.fatalError("Unable to attach to target VM.");
} catch (IllegalConnectorArgumentsException icae) {
icae.printStackTrace();
MessageOutput.fatalError("Internal debugger error.");
}
return null; // Shuts up the compiler
}
private void dumpStream(InputStream stream) throws IOException {
BufferedReader in = new BufferedReader(new InputStreamReader(stream));
int i;
try {
while ((i = in.read()) != -1) {
MessageOutput.printDirect((char) i); // Special case: use
// printDirect()
}
} catch (IOException ex) {
String s = ex.getMessage();
if (!s.startsWith("Bad file number")) {
throw ex;
}
// else we got a Bad file number IOException which just means
// that the debuggee has gone away. We'll just treat it the
// same as if we got an EOF.
}
}
/* launch child target vm */
private VirtualMachine launchTarget() {
LaunchingConnector launcher = (LaunchingConnector) connector;
try {
VirtualMachine vm = launcher.launch(connectorArgs);
process = vm.process();
displayRemoteOutput(process.getErrorStream());
displayRemoteOutput(process.getInputStream());
return vm;
} catch (IOException ioe) {
ioe.printStackTrace();
MessageOutput.fatalError("Unable to launch target VM.");
} catch (IllegalConnectorArgumentsException icae) {
icae.printStackTrace();
MessageOutput.fatalError("Internal debugger error.");
} catch (VMStartException vmse) {
MessageOutput.println("vmstartexception", vmse.getMessage());
MessageOutput.println();
dumpFailedLaunchInfo(vmse.process());
MessageOutput.fatalError("Target VM failed to initialize.");
}
return null; // Shuts up the compiler
}