/**
* Attach to a JVM that is already running at specified host.
*
* @throws DebuggerException when connection to Java VM is not established
*/
private void connect() throws DebuggerException {
final String connectorName = "com.sun.jdi.SocketAttach";
AttachingConnector connector = connector(connectorName);
if (connector == null) {
throw new DebuggerException(
String.format(
"Unable connect to target Java VM. Requested connector '%s' not found. ",
connectorName));
}
Map<String, Connector.Argument> arguments = connector.defaultArguments();
arguments.get("hostname").setValue(host);
((Connector.IntegerArgument) arguments.get("port")).setValue(port);
int attempt = 0;
for (; ; ) {
try {
Thread.sleep(2000);
vm = connector.attach(arguments);
vm.suspend();
break;
} catch (UnknownHostException | IllegalConnectorArgumentsException e) {
throw new DebuggerException(e.getMessage(), e);
} catch (IOException e) {
LOG.error(e.getMessage(), e);
if (++attempt > 10) {
throw new DebuggerException(e.getMessage(), e);
}
try {
Thread.sleep(2000);
} catch (InterruptedException ignored) {
}
} catch (InterruptedException ignored) {
}
}
eventsCollector = new EventsCollector(vm.eventQueue(), this);
LOG.debug("Connect {}:{}", host, port);
}
@Override
public EventQueue eventQueue() {
return virtualMachine.eventQueue();
}
public EventQueue eventQueue() {
return myVirtualMachine.eventQueue();
}
