Hi,
I am getting the following error intermittently while performing actions like button /link clicks through Vaadin UI. Please help me find a solution for the same.
Environment is apache-jboss and browser used is internet explorer 8.
The application is stuck with the progress icon turning round and round and finally exits with the following error in jboss log (Please not that there is no error shown in the apache logs.):
2012-08-01 07:35:43,974 ERROR [STDERR]
Aug 1, 2012 7:35:43 AM com.vaadin.Application terminalError
SEVERE: Terminal error:
java.io.IOException
at org.apache.jk.common.JkInputStream.receive(JkInputStream.java:190)
at org.apache.jk.common.JkInputStream.doRead(JkInputStream.java:164)
at org.apache.coyote.Request.doRead(Request.java:418)
at org.apache.catalina.connector.InputBuffer.realReadBytes(InputBuffer.java:284)
at org.apache.tomcat.util.buf.ByteChunk.substract(ByteChunk.java:404)
at org.apache.catalina.connector.InputBuffer.read(InputBuffer.java:299)
at org.apache.catalina.connector.CoyoteInputStream.read(CoyoteInputStream.java:161)
at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.getRequestPayload(AbstractCommunicationManager.java:1386)
at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.handleVariables(AbstractCommunicationManager.java:1187)
at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.doHandleUidlRequest(AbstractCommunicationManager.java:735)
at com.vaadin.terminal.gwt.server.CommunicationManager.handleUidlRequest(CommunicationManager.java:296)
at com.vaadin.terminal.gwt.server.AbstractApplicationServlet.service(AbstractApplicationServlet.java:501)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
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.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:199)
at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:282)
at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:767)
at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:697)
at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:889)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:662)
2012-08-01 07:38:47,475 ERROR [STDERR]
Aug 1, 2012 7:38:47 AM com.vaadin.terminal.gwt.server.AbstractCommunicationManager handleVariableBurst
WARNING: Warning: Ignoring variable change for non-existent component, VAR_PID=PID7
2012-08-01 07:38:47,478 ERROR [STDERR]
Aug 1, 2012 7:38:47 AM com.vaadin.terminal.gwt.server.AbstractCommunicationManager handleVariableBurst
WARNING: Warning: Ignoring variable change for non-existent component, VAR_PID=PID20
2012-08-01 07:38:47,480 ERROR [STDERR]
Aug 1, 2012 7:38:47 AM com.vaadin.terminal.gwt.server.AbstractCommunicationManager handleVariableBurst
WARNING: Warning: Ignoring variable change for non-existent component, VAR_PID=PID14
2012-08-01 07:38:47,483 ERROR [STDERR]
Aug 1, 2012 7:38:47 AM com.vaadin.terminal.gwt.server.AbstractCommunicationManager handleVariableBurst
WARNING: Warning: Ignoring variable change for non-existent component, VAR_PID=PID20
2012-08-01 07:38:47,486 ERROR [STDERR]
Aug 1, 2012 7:38:47 AM com.vaadin.terminal.gwt.server.AbstractCommunicationManager handleVariableBurst
WARNING: Warning: Ignoring variable change for non-existent component, VAR_PID=PID14
2012-08-01 07:38:47,488 ERROR [STDERR]
Aug 1, 2012 7:38:47 AM com.vaadin.terminal.gwt.server.AbstractCommunicationManager handleVariableBurst
WARNING: Warning: Ignoring variable change for non-existent component, VAR_PID=PID23
2012-08-01 07:38:47,491 ERROR [STDERR]
Aug 1, 2012 7:38:47 AM com.vaadin.terminal.gwt.server.AbstractCommunicationManager handleVariableBurst
WARNING: Warning: Ignoring variable change for non-existent component, VAR_PID=PID14
2012-08-01 07:38:47,494 ERROR [STDERR]
Aug 1, 2012 7:38:47 AM com.vaadin.terminal.gwt.server.AbstractCommunicationManager handleVariableBurst
WARNING: Warning: Ignoring variable change for non-existent component, VAR_PID=PID23
2012-08-01 07:38:47,496 ERROR [STDERR]
Aug 1, 2012 7:38:47 AM com.vaadin.terminal.gwt.server.AbstractCommunicationManager handleVariableBurst
WARNING: Warning: Ignoring variable change for non-existent component, VAR_PID=PID14