WARNING: failed _ah_ServeBlobFilter: java.lang.ClassCastException:

[Bucky]

I've been working on a project for a while and been testing fine. I
just started getting the following exception. I created a new project
that works ok.

WARNING: failed _ah_ServeBlobFilter: java.lang.ClassCastException:
com.google.appengine.tools.development.ApiProxyLocalImpl cannot be
cast to com.google.appengine.tools.development.ApiProxyLocal
Jan 3, 2012 3:55:31 PM com.google.apphosting.utils.jetty.JettyLogger
warn
WARNING: Failed startup of context
com.google.appengine.tools.development.DevAppEngineWebAppContext@4390e5dc{/,/
Users/bucky/Documents/workspace/Online Beacon 0.2.5/war}
java.lang.ClassCastException:
com.google.appengine.tools.development.ApiProxyLocalImpl cannot be
cast to com.google.appengine.tools.development.ApiProxyLocal
at
com.google.appengine.api.blobstore.dev.ServeBlobFilter.init(ServeBlobFilter.java:
53)
at org.mortbay.jetty.servlet.FilterHolder.doStart(FilterHolder.java:
97)
at
org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:
50)
at
org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:
662)
at org.mortbay.jetty.servlet.Context.startContext(Context.java:140)
at
org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:
1250)
at
org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:
517)
at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:
467)
at
org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:
50)
at
org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:
130)
at
org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:
50)
at
org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:
130)
at org.mortbay.jetty.Server.doStart(Server.java:224)
at
org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:
50)
at
com.google.appengine.tools.development.JettyContainerService.startContainer(JettyContainerService.java:
191)
at
com.google.appengine.tools.development.AbstractContainerService.startup(AbstractContainerService.java:
239)
at
com.google.appengine.tools.development.DevAppServerImpl.start(DevAppServerImpl.java:
146)
at
com.google.appengine.tools.development.gwt.AppEngineLauncher.start(AppEngineLauncher.java:
97)
at com.google.gwt.dev.DevMode.doStartUpServer(DevMode.java:509)
at com.google.gwt.dev.DevModeBase.startUp(DevModeBase.java:1068)
at com.google.gwt.dev.DevModeBase.run(DevModeBase.java:811)
at com.google.gwt.dev.DevMode.main(DevMode.java:311)

Any suggestions on what I changed to cause this?

[koma]

same here !

[larry]

And here, as well.

I'm wondering if the other people who had this problem were developing
in Intellij Idea.

> same here !

[Dan]

I created a new Roo project in Eclipse. After startup from the command
line (mvn gwt:run), I get the same exception the first time I try to
access the web app from the browser.

Dan

[MagusDrk]

Hi. I've just faced the same issue just after install some GWT
updates... Anyone knows can it be solved, its really important. Thanks
a lot.

[MagusDrk]

Additionally. I've got an error on the browser:

=====================================================
HTTP ERROR: 503

Problem accessing /MyApp.html. Reason:

SERVICE_UNAVAILABLE
Powered by Jetty://

=====================================================

[MagusDrk]

Hi all.

If someone of you are still waiting for a response, I've got a
solution in the next thread.

http://groups.google.com/group/google-web-toolkit/browse_thread/thread/15726363d7c3af84/dc25bb11241f2d6d?lnk=gst&q=JettyLogger+error#dc25bb11241f2d6d

I hoppe to be helpful.

regards.