GWT-RPC Error

Hello,

We are using GWT 2.3 in our web application. In our log files we see
the error "encodedRequest cannot be empty". This error occurs when we
make GWT-RPC calls. The error is intermittent. It does not happen all
of the time. Based on the log file data, it happens approx 5% of the
time for GWT-RPC calls.

Any work arounds for resolving this? Thanks.

Stack Trace:
java.lang.IllegalArgumentException: encodedRequest cannot be empty
at com.google.gwt.user.server.rpc.RPC.decodeRequest(RPC.java:229)
at
com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:
206)
at
com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:
248)
at
com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:
62)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:754)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)

Client Environment:
Microsoft Internet Explorer 8
MS Windows 7

Server Environment:
Tomcat 7
MS Windows 2008
JDK 1.6
GWT 2.3

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