RPC Exception (Tomcat 5.5, GWT 1.1.0)

[arthur]

Hi,

I made a WAR of my application and deployed it on a Tomcat 5.5 server,
but now I get the following error:

SEVERE: Exception while dispatching incoming RPC call
java.lang.NumberFormatException: For input string: ""
at
java.lang.NumberFormatException.forInputString(NumberFormatException.java:48)
at java.lang.Integer.parseInt(Integer.java:468)
at java.lang.Integer.parseInt(Integer.java:497)
at
com.google.gwt.user.server.rpc.ServerSerializationStream.getInstanceName(ServerSerializationStream.java:438)
at
com.google.gwt.user.server.rpc.ServerSerializationStream.nextInstance(ServerSerializationStream.java:357)
at
com.google.gwt.user.server.rpc.ServerSerializationStream.deserialize(ServerSerializationStream.java:489)
at
com.google.gwt.user.server.rpc.ServerSerializationStream.readObject(ServerSerializationStream.java:443)
at
com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:226)
at
com.google.gwt.user.server.rpc.RemoteServiceServlet.doPost(RemoteServiceServlet.java:186)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:868)
at
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:663)
at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:595)
Aug 17, 2006 4:20:05 PM org.apache.catalina.core.ApplicationContext log

I'm completely clueless, because I deployed applications the same way
before with GWT 1.0.21 and it always used to work flawless. Does
anybody has an idea...? Thanks in advance.

Kind regards,
Arthur

[DCYorke]

Make sure you include the new gwt-servlet.jar in your WAR.

DCY

[Scott Blum]

Hi arthur,

Be sure to completely delete any compiled output files from 1.0.21.  You will need to build your application cleanly to upgrade to 1.1 properly-- there was a breaking change in RPC in 1.1 and clients and servers from mixed versions will be incompatible.  You may also need to clear your browser's cache.

HTH,
Scott

org.apache.catalina.core.ApplicationFilterChain.internalDoFilter (ApplicationFilterChain.java:252)

        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java :213)
        at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
        at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
        at

org.apache.catalina.valves.ErrorReportValve.invoke (ErrorReportValve.java:105)

[arthur]

I copied gwt-user.jar (GWT 1.1.0) to the common/lib directory and
restarted Tomcat. Now everything seems to work fine. Thanks for the
response...!