Hi! I'm working on a web service for sending files to server and back to client. Everything works ok but each 10-20 trys i got such error on client side:



- Exception:
AxisFault
faultCode: {http://schemas.xmlsoap.org/soap/envelope/}Server.userException
faultSubcode:
faultString: java.lang.NullPointerException
faultActor:
faultNode:
faultDetail:
{http://xml.apache.org/axis/}stackTrace:java.lang.NullPointerException
at org.apache.axis.attachments.AttachmentsImpl.writeContentToStream(AttachmentsImpl.java:473)
at org.apache.axis.Message.writeTo(Message.java:534)
at org.apache.axis.transport.http.HTTPSender.writeToSocket(HTTPSender.java:511)
at org.apache.axis.transport.http.HTTPSender.invoke(HTTPSender.java:138)
at org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java:32)
at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:118)
at org.apache.axis.SimpleChain.invoke(SimpleChain.java:83)
at org.apache.axis.client.AxisClient.invoke(AxisClient.java:165)
at org.apache.axis.client.Call.invokeEngine(Call.java:2765)
at org.apache.axis.client.Call.invoke(Call.java:2748)
at org.apache.axis.client.Call.invoke(Call.java:2424)
at org.apache.axis.client.Call.invoke(Call.java:2347)
at org.apache.axis.client.Call.invoke(Call.java:1804)
at homenet.client.HomeNetSoapBindingStub.sendFileToClient(HomeNetSoapBindingStub.java:349)
at homenet.client.Main$Tester.run(Main.java:51)

I don't know how to catch that exception. I don't know where is it thrown. I don't know even what to do to don't have this exception wrote on screen. It's very strange for me. Can you help me?

regards
Styczoo