amjad277

new to network stuff going through the java tutorials and i did what it said heres the code: [code=java]import java.io.*; import java.net.*; public class EchoClient { public static void main(String[] args) throws IOException { Socket echoSocket = null; PrintWriter out = null; BufferedReader in = null; try { echoSocket = …

[B]- I try here to close the XAConnection and XASession session.close() connection .close() - but the server shows me this Exception:[/B] 2008-07-18 09:30:14,093 DEBUG [org.jboss.mq.il.uil2.ServerSocketManagerHandler] Exiting on IOE java.net.SocketException: Socket closed at java.net.SocketInputStream.read(SocketInputStream.java:162) at java.io.BufferedInputStream.fill(BufferedInputStream.java:218) at java.io.BufferedInputStream.read(BufferedInputStream.java:235) at org.jboss.util.stream.NotifyingBufferedInputStream.read(NotifyingBufferedInputStream.java:79) at java.io.ObjectInputStream$PeekInputStream.peek(ObjectInputStream.java:2196) at java.io.ObjectInputStream$BlockDataInputStream.readBlockHeader(ObjectInputStream.java:2376) at java.io.ObjectInputStream$BlockDataInputStream.refill(ObjectInputStream.java:2443) at java.io.ObjectInputStream$BlockDataInputStream.read(ObjectInputStream.java:2515) at java.io.ObjectInputStream$BlockDataInputStream.readByte(ObjectInputStream.java:2664) at …

When one thread is executing a synchronized method for an object, all other threads that invoke synchronized methods for the same object block. What is happen when too many threads (for the same object) for example 100 Threads invoke this method and want to send data? In which order can …

Does J2EE support TCP connection? If yes, how can I use these in J2EE: java.io.DataInputStream, java.io.DataOutputStream and java.net.ServerSocket Some one said to me there is no chance: Specifically, enterprise beans should not: listen on, accept connections on, or multicast from a network socket! Is this correct? Please help!?!

i need to develop an instant messaging using Jabber. Can anyone suggest me which jabber client api is the best for developing IM in java. Any samples on jabber client will be helpful. thanks & regards,

Hello, does anybody know what is the difference between thies two codes? [B]1- With this code I get "NullPointerException at process1.getCurrentNode();"[/B] public void signal(ProcessEntity process) { ProcessEntity process1 = getEntityManager().find(ProcessEntity.class, process.getId()); if (process1 == null) { try { Thread.sleep(5000); } catch (InterruptedException e) { e.printStackTrace(); } signal(process); } NodeEntity currentNode …