My answers to your questions are in my post from 28. oct.
I continued debugging my XMPP test app today. At first, the same error
occurred. I tried Class.forName("com.google.appengine.api.xmpp.JID").
That worked. And now sending XMPP also worked!
To find out, what caused the problems, I added the saxon9.jar
(provides services for javax.xml.xpath.XPathFactory and
javax.xml.transform.TramsformerFactory). Now I got a
ClassNotFoundException again! And I still get this exception even
though I removed the saxon9.jar (and deployed a new version of the
app and removed all other old versions).
So what I did:
APP1 (uses saxon9.jar): added XMPP test -> ClassNotFoundException JID
APP2 (created from scratch, empty lib, no saxon9.jar): XMPP test ->
works!
APP2: small changes (just logging) -> ClassNotFoundException JID
APP2: a lot of testing, creating new versions, deleting old
versions, ... -> ClassNotFoundException JID
APP1: XMPP test removed
APP2: Class.forName("com.google.appengine.api.xmpp.JID") and some
other testing -> works!
APP2: adding saxon9.jar -> ClassNotFoundException JID
APP2: removing saxon9.jar -> ClassNotFoundException JID
APP2: creating new versions, deleting old versions, ... ->
ClassNotFoundException JID
- Claus
On 27 Okt., 22:24, "Jason (Google)" <apija...@google.com> wrote:
> Are you still seeing this error? If so, which version of the SDK are you
> using? Did you change your SDK settings or update your SDK between the time
> when XMPP was working and when it started failing?
>
> Also, can you list the JARs in your war/WEB-INF/lib directory?
>
> - Jason
>
> On Sat, Oct 24, 2009 at 12:56 PM, lallafa <claus.cla...@gmail.com> wrote:
>
> > I wrote a test servlet "SendServlet" that sends invitations and
> > messages.
>
> > Calling the servlet works fine with with the runtime. It also worked
> > when it was uploaded to app engine the first time. But after uploading
> > new versions the following exception is thrown:
>
> > java.lang.NoClassDefFoundError: com/google/appengine/api/xmpp/JID
> > at plapperbot.SendServlet.doPost(SendServlet.java:29)
> > at javax.servlet.http.HttpServlet.service(HttpServlet.java:713)
> > at javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
> > at
> > org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:
> > 487)
> > at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter
> > (ServletHandler.java:1093)
> > at com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter
> > (SaveSessionFilter.java:35)
> > at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter
> > (ServletHandler.java:1084)
> > at
> > com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter
> > (TransactionCleanupFilter.java:43)
> > at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter
> > (ServletHandler.java:1084)
> > at org.mortbay.jetty.servlet.ServletHandler.handle
> > (ServletHandler.java:360)
> > at org.mortbay.jetty.security.SecurityHandler.handle
> > (SecurityHandler.java:216)
> > at org.mortbay.jetty.servlet.SessionHandler.handle
> > (SessionHandler.java:181)
> > at org.mortbay.jetty.handler.ContextHandler.handle
> > (ContextHandler.java:712)
> > at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:
> > 405)
> > at com.google.apphosting.runtime.jetty.AppVersionHandlerMap.handle
> > (AppVersionHandlerMap.java:238)
> > at org.mortbay.jetty.handler.HandlerWrapper.handle
> > (HandlerWrapper.java:139)
> > at org.mortbay.jetty.Server.handle(Server.java:313)
> > at
> > org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:
> > 506)
> > at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete
> > (HttpConnection.java:830)
> > at
> > com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable
> > (RpcRequestParser.java:76)
> > at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:381)
> > at
>
> > com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest
> > (JettyServletEngineAdapter.java:139)
> > at com.google.apphosting.runtime.JavaRuntime.handleRequest
> > (JavaRuntime.java:239)
> > at com.google.apphosting.base.RuntimePb$EvaluationRuntime
> > $6.handleBlockingRequest(RuntimePb.java:5135)
> > at com.google.apphosting.base.RuntimePb$EvaluationRuntime
> > $6.handleBlockingRequest(RuntimePb.java:5133)
> > at com.google.net.rpc.impl.BlockingApplicationHandler.handleRequest
> > (BlockingApplicationHandler.java:24)
> > at com.google.net.rpc.impl.RpcUtil.runRpcInApplication(RpcUtil.java:
> > 363)
> > at com.google.net.rpc.impl.Server$2.run(Server.java:814)
> > at com.google.tracing.LocalTraceSpanRunnable.run
> > (LocalTraceSpanRunnable.java:56)
> > at com.google.tracing.LocalTraceSpanBuilder.internalContinueSpan
> > (LocalTraceSpanBuilder.java:516)
> > at com.google.net.rpc.impl.Server.startRpc(Server.java:769)
> > at com.google.net.rpc.impl.Server.processRequest(Server.java:351)
> > at com.google.net.rpc.impl.ServerConnection.messageReceived
> > (ServerConnection.java:437)
> > at com.google.net.rpc.impl.RpcConnection.parseMessages
> > (RpcConnection.java:319)
> > at com.google.net.rpc.impl.RpcConnection.dataReceived
> > (RpcConnection.java:290)
> > at com.google.net.async.Connection.handleReadEvent(Connection.java:
> > 436)
> > at com.google.net.async.EventDispatcher.processNetworkEvents
> > (EventDispatcher.java:762)
> > at com.google.net.async.EventDispatcher.internalLoop
> > (EventDispatcher.java:207)
> > at com.google.net.async.EventDispatcher.loop(EventDispatcher.java:
> > 101)
> > at com.google.net.rpc.RpcService.runUntilServerShutdown
> > (RpcService.java:251)
> > at com.google.apphosting.runtime.JavaRuntime$RpcRunnable.run
> > (JavaRuntime.java:396)
> > at java.lang.Thread.run(Unknown Source)
> > Caused by: java.lang.ClassNotFoundException:
> > com.google.appengine.api.xmpp.JID
> > at com.google.appengine.runtime.Request.process-f96f6f9cd332072e
> > (Request.java)
> > at java.lang.ClassLoader.loadClass(Unknown Source)
> > at java.lang.ClassLoader.loadClassInternal(Unknown Source)
> > ... 42 more
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