RPC call fails Client:Internal Server Error(500), server:java.io.Exception Stream Clo

[leeyuiwah]

The client sits on the webpage for a while (either due to session timeout, or, by manually removing the cookie from the browser using Developer Tools of Chrome for example). We click on a widget (which results in an RPC call to the backend). We notice that the RPC call succeeds and while sending the response back to the client, the server encounters an exception (java.io.IOException: Stream closed). Please see the exception below. We are using tomcat6 (6.0.24-80.el6).
Not sure if the issue is related to tomcat... In the javascript console, we see the message "The call failed on the server; see server log for details".

The session timeout may have been the issue and we are looking into using the guidelines to setup loginRequiredMarkers. However, we don't believe this issue is related to markers. It appears that the client side is prematurely closing the socket connection.

1. SmartClient Version: v10.0p_2015-02-25/PowerEdition Deployment (built 2015-02-25)

2. Chrome Version 40.0.2214.115 m

3. === 2015-03-12 15:35:24,210 [sor2] INFO RequestContext - URL: '/<removed>/<removed>/<removed>', User-Agent: 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/40.0.2214.115 Safari/537.36': Safari with Accept-Encoding header
Mar 12, 2015 3:35:24 PM org.apache.catalina.core.ApplicationContext log
SEVERE: Exception while dispatching incoming RPC call
java.io.IOException: Stream closed
at org.apache.catalina.connector.InputBuffer.read(InputBuffer.java:325)
at org.apache.catalina.connector.CoyoteInputStream.read(CoyoteInputStream.java:162)
at com.google.gwt.user.server.rpc.RPCServletUtils.readContent(RPCServletUtils.java:224)
at com.google.gwt.user.server.rpc.RPCServletUtils.readContentAsGwtRpc(RPCServletUtils.java:252)
at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.readContent(AbstractRemoteServiceServlet.java:182)
at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:364)
at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at com.alcatel_lucent.aware.web.wnganalytic.server.SecurityFilter.doFilter(SecurityFilter.java:79)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at com.isomorphic.servlet.CompressionFilter._doFilter(CompressionFilter.java:260)
at com.isomorphic.servlet.BaseFilter.doFilter(BaseFilter.java:83)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:190)
at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:291)
at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:769))
at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:698)
at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:891)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690)
at java.lang.Thread.run(Thread.java:745)

[Isomorphic]

This looks like a straight GWT / tomcat issue perhaps? It appears you're talking about a GWT RPC, not a call going through our framework (either a DataSource request, or a SmartGWT RPCRequest, hitting the IDACall servlet, etc)?

As such, we probably aren't your best source for debugging this issue.

Let us know if you think we're misunderstanding what's happening here and this seems to be a framework issue.

Thanks
Isomorphic Software

[leeyuiwah]

agreed... thanks.