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  1. #1
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    Default Answered: Grid server-side paging is failed in web-mode

    Hi All,

    Gxt Version-->gxt-2.2.4-gwt22

    Grid server-side paging is failed in web-mode but it is working fine in dev-mode in web-mode it throws excepton

    SEVERE: data: An IncompatibleRemoteServiceException was thrown while processing this call.
    com.google.gwt.user.client.rpc.IncompatibleRemoteServiceException: java.lang.NoClassDefFoundError: com/google/gwt/core/client/GWTBridge
    at com.google.gwt.user.server.rpc.RPC.decodeRequest(RPC.java:323)
    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: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 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:293)
    at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:877)
    at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:594)
    at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1675)
    at java.lang.Thread.run(Thread.java:662)
    Caused by: com.google.gwt.user.client.rpc.SerializationException: java.lang.NoClassDefFoundError: com/google/gwt/core/client/GWTBridge
    at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamReader.deserialize(ServerSerializationStreamReader.java:691)
    at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamReader.readObject(ServerSerializationStreamReader.java:567)
    at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamReader$ValueReader$8.readValue(ServerSerializationStreamReader.java:140)
    at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamReader.deserializeValue(ServerSerializationStreamReader.java:425)
    at com.google.gwt.user.server.rpc.RPC.decodeRequest(RPC.java:312)
    ... 17 more

  2. This exception is being thrown on the server - there isn't a difference in the server code when you are running in Dev Mode versus compiled Web Mode. So there is some other difference in how you are running in web mode than prod mode.

    From this part of your error message, it appears that you are using gwt-servlet.jar version 2.5.0 when running web mode, and either using a 2.4.0 version for dev mode, or adding other jars to the classpath when in dev mode.
    Code:
    java.lang.NoClassDefFoundError: com/google/gwt/core/client/GWTBridge
    A simple google search on this text brings up this bug report that affects only GWT 2.5.0: http://code.google.com/p/google-web-...detail?id=7527

    As discussed there, there are several fixes: Copy the GWTBridge class into your project, or add requestfactory-server.jar to your WEB-INF/lib/, or update to GWT trunk version, or back off to GWT 2.4.0.

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