Hello!
I have a strange problem.
I have created an ant task that open a plain tcp socket connection on localhost.
FcshWrapper
So i open a connection on localhost with:
private boolean connect(){
try{
socket = new Socket("localhost", serverPort);
System.out.println("SOCKET isBound: " + socket.isBound());
System.out.println("SOCKET: isConnected: " + socket.isConnected());
System.out.println("SOCKET: " + socket);
inStream = socket.getInputStream();
outStream = socket.getOutputStream();
return true;
}catch(Exception e){
antProject.log("Nobody listening on " + serverPort + "...");
antProject.log("Here is the reason: ", e, Project.MSG_DEBUG);
return false;
}
}
The strange thing is that on whatever port i use the Socket constructor connects on localhost. Printing to out stream:
SOCKET isBound: true
SOCKET: isConnected: true
SOCKET: Socket[addr=localhost/127.0.0.1,port=65535,localport=2827]
On this sockets nobody listen.... I checked with netstat -ab>c:\netstat.txt
After connection i am able to send some data trough the socket:
ObjectOutputStream serializationStream = new ObjectOutputStream(outStream);
serializationStream.writeObject(command);
serializationStream.writeObject(StringArgs);
,but it crashes with:
java.net.SocketException: Connection reset
at java.net.SocketInputStream.read(SocketInputStream.java:168)
at java.io.ObjectInputStream$PeekInputStream.read(ObjectInputStream.java:2213)
at java.io.ObjectInputStream$PeekInputStream.readFully(ObjectInputStream.java:2226)
at java.io.ObjectInputStream$BlockDataInputStream.readShort(ObjectInputStream.java:2694)
at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:761)
at java.io.ObjectInputStream.<init>(ObjectInputStream.java:277)
at ro.arhinet.fcshwrapper.ant.AntTaskGateway.send(AntTaskGateway.java:44)
at ro.arhinet.fcshwrapper.ant.FcshTask.execute(FcshTask.java:33)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
at sun.reflect.GeneratedMethodAccessor151.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:105)
at org.apache.tools.ant.Task.perform(Task.java:348)
at org.apache.tools.ant.Target.execute(Target.java:357)
at org.apache.tools.ant.Target.performTasks(Target.java:385)
at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1329)
at org.apache.tools.ant.helper.SingleCheckExecutor.executeTargets(SingleCheckExecutor.java:38)
at org.apache.tools.ant.Project.executeTargets(Project.java:1181)
at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:416)
at org.apache.tools.ant.taskdefs.CallTarget.execute(CallTarget.java:105)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
at sun.reflect.GeneratedMethodAccessor151.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:105)
at org.apache.tools.ant.Task.perform(Task.java:348)
at org.apache.tools.ant.Target.execute(Target.java:357)
at org.apache.tools.ant.Target.performTasks(Target.java:385)
at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1329)
at org.apache.tools.ant.helper.SingleCheckExecutor.executeTargets(SingleCheckExecutor.java:38)
at org.apache.tools.ant.Project.executeTargets(Project.java:1181)
at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:416)
at org.apache.tools.ant.taskdefs.CallTarget.execute(CallTarget.java:105)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
at sun.reflect.GeneratedMethodAccessor151.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:105)
at org.apache.tools.ant.Task.perform(Task.java:348)
at org.apache.tools.ant.Target.execute(Target.java:357)
at org.apache.tools.ant.Target.performTasks(Target.java:385)
at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1329)
at org.apache.tools.ant.helper.SingleCheckExecutor.executeTargets(SingleCheckExecutor.java:38)
at org.apache.tools.ant.Project.executeTargets(Project.java:1181)
at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:416)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
at sun.reflect.GeneratedMethodAccessor151.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:105)
at org.apache.tools.ant.Task.perform(Task.java:348)
at org.apache.tools.ant.Target.execute(Target.java:357)
at org.apache.tools.ant.Target.performTasks(Target.java:385)
at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1329)
at org.apache.tools.ant.Project.executeTarget(Project.java:1298)
at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
at org.apache.tools.ant.Project.executeTargets(Project.java:1181)
at org.apache.tools.ant.module.bridge.impl.BridgeImpl.run(BridgeImpl.java:277)
at org.apache.tools.ant.module.run.TargetExecutor.run(TargetExecutor.java:460)
at org.netbeans.core.execution.RunClassThread.run(RunClassThread.java:151)
when i am trying to read data from the socket with this code:
ObjectInputStream deserializationStream = new ObjectInputStream(inStream);
fcshSTDOut = (String)deserializationStream.readObject();
fcshERROut = (String)deserializationStream.readObject();
I have this behavior when i run my task from Eclipse or NetBeans. It is not happen all the time, but when it happens, the socket it always connects for subsequent runs. I was not able to reproduce this behavior in the cmd.exe console .
Thank you,
Mihai