On Jul 16, 2009, at 9:18 AM, Kristof Cossement wrote:
Hi, does someone have a solution for this problem ?
I have a recurring problem in WO 5.4 with WOWebserviceClient.invoke:
sometimes we get an exception on WOWebServiceClient.invoke
private static WOWebServiceClient caller = ...;
Object [] oo = new Object [] {"aa","bb"};
Object result = caller.invoke("Service","getUserForID",
oo);
and 5 seconds later, the invoke can work again, with exact the same
arguments.
Our WO applications is multithreaded and a lot of threads will use
the caller object to access differernt functions of a webservice (a
WebObjects webservice)
Can it be that WOWebserviceClient is not thread safe and that
accessing it simultaneously causes this error ?
That is what it looks like to me, from your stack trace and description.
Chuck
The reason I made caller static is to save time to not have to
instantiate a new WOWebServiceClient object each time I want to make
a service call.
Is there any source code available of WOWebServiceClient.java ?
Thanks for your collaboration !
Kristof
16/07/2009 15:32:54:106 [ERROR] <WorkerThread9> Exception(Message:
Exception trying to invoke operation: getUserForID,
Cause:java.net.SocketException: Invalid argument)
com.webobjects.foundation.NSForwardException
[org.apache.axis.AxisFault] ; nested exception is:
java.net.SocketException: Invalid argument:Exception trying to
invoke operation: getUserForID
at
com
.webobjects
.webservices
.client.WOWebServiceClient.invoke(WOWebServiceClient.java:491)
at
be
.nss
.correctvit.service.PortalClient.getUserInfoForID(PortalClient.java:
182)
at
be
.nss
.correctvit
.database.SQLGenerator.selectCorrectVitDocuments(SQLGenerator.java:
455)
at
be
.nss
.correctvit
.service
.WOSOAPCorrectvitFunctions
.getCorrectVitDocuments(WOSOAPCorrectvitFunctions.java:177)
at sun.reflect.GeneratedMethodAccessor7.invoke(Unknown Source)
at
sun
.reflect
.DelegatingMethodAccessorImpl
.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at
org
.apache
.axis.providers.java.RPCProvider.invokeMethod(RPCProvider.java:397)
at
org
.apache
.axis.providers.java.RPCProvider.processMessage(RPCProvider.java:186)
at
org.apache.axis.providers.java.JavaProvider.invoke(JavaProvider.java:
323)
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.handlers.soap.SOAPService.invoke(SOAPService.java:454)
at org.apache.axis.server.AxisServer.invoke(AxisServer.java:281)
at
com
.webobjects
.appserver
._private.WOWebService.performActionNamed(WOWebService.java:437)
at
com
.webobjects
.appserver
._private
.WOActionRequestHandler._handleRequest(WOActionRequestHandler.java:
259)
at
com
.webobjects
.appserver
._private
.WOActionRequestHandler.handleRequest(WOActionRequestHandler.java:161)
at
com
.webobjects
.appserver
._private
.WOWebServiceRequestHandler
.handleRequest(WOWebServiceRequestHandler.java:109)
at
com
.webobjects
.appserver.WOApplication.dispatchRequest(WOApplication.java:1687)
at be.nss.correctvit.Application.dispatchRequest(Application.java:
792)
at
com
.webobjects
.appserver._private.WOWorkerThread.runOnce(WOWorkerThread.java:144)
at
com
.webobjects
.appserver._private.WOWorkerThread.run(WOWorkerThread.java:226)
at java.lang.Thread.run(Thread.java:613)
Caused by: java.net.SocketException: Invalid argument
at org.apache.axis.AxisFault.makeFault(AxisFault.java:101)
at org.apache.axis.transport.http.HTTPSender.invoke(HTTPSender.java:
154)
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:2784)
at org.apache.axis.client.Call.invoke(Call.java:2767)
at org.apache.axis.client.Call.invoke(Call.java:2443)
at org.apache.axis.client.Call.invoke(Call.java:2366)
at org.apache.axis.client.Call.invoke(Call.java:1812)
at
com
.webobjects
.webservices
.client.WOWebServiceClient.invoke(WOWebServiceClient.java:484)
... 23 more
Caused by: java.net.SocketException: Invalid argument
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.read(SocketInputStream.java:129)
at java.io.BufferedInputStream.fill(BufferedInputStream.java:218)
at java.io.BufferedInputStream.read(BufferedInputStream.java:235)
at
org
.apache
.axis
.transport.http.HTTPSender.readHeadersFromSocket(HTTPSender.java:583)
at org.apache.axis.transport.http.HTTPSender.invoke(HTTPSender.java:
143)
... 33 more
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