CODEWITHSUNDEEP
google-app-enginegwtgwt-rpcgwt2
Rangesh
Rangesh

Reputation: 728

Could not initialize class caused by java.lang.NoClassDefFoundError GWT

I get the following error while calling my GWT RPC function, 

com.google.gwt.user.client.rpc.StatusCodeException: 500

I did add the remoteservicepath and also servlet name and mapping in my web.xml, but i get the error

Could not initialize class com.logins.server.Putquestion Caused by:java.lang.NoClassDefFoundError at sun.reflect.GeneratedConstructorAccessor19.newInstance(Unknown Source) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) at java.lang.reflect.Constructor.newInstance(Unknown Source) at java.lang.Class.newInstance0(Unknown Source) at java.lang.Class.newInstance(Unknown Source) at org.mortbay.jetty.servlet.Holder.newInstance(Holder.java:153) at org.mortbay.jetty.servlet.ServletHolder.initServlet(ServletHolder.java:428) at org.mortbay.jetty.servlet.ServletHolder.getServlet(ServletHolder.java:339)...

Note: 1)com.logins.server.PutQuestion is server code that implements the rpc Interface defined at client side.

Any guesses where i am going wrong ?

Upvotes: 2

Views: 5300

Answers (2)

Arun Manivannan
Arun Manivannan

Reputation: 4313

You have classes in your classpath of your editor but not during runtime.

The trace says that you have some exception thrown within the constructor that gets propagated to the classloader. Try wrapping your constructor with try/catch and print the stack trace. Probably you are looking up the database/file which could be down/not present.

Upvotes: 1

Ganesh Kumar
Ganesh Kumar

Reputation: 3240

Make sure that the servlet class is present in war/WEB-INF/classes folder.

Upvotes: 1

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