I extended AbstractStandardDispatchServlet in order to use it with spring
and it seems that getDispatch() from here returns me null Dispatch Object.
package cayetano.common.web.handler;
import javax.inject.Inject;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import net.customware.gwt.dispatch.server.Dispatch;
import
net.customware.gwt.dispatch.server.standard.AbstractStandardDispatchServlet;
import org.springframework.beans.factory.config.AutowireCapableBeanFactory;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;
public final class StandardDispatchServiceServlet extends
AbstractStandardDispatchServlet {
private static final long serialVersionUID = 1L;
private Dispatch dispatch;
@Override
public void init(ServletConfig config) throws ServletException {
super.init(config);
WebApplicationContext ctx =
WebApplicationContextUtils.getRequiredWebApplicationContext(config.getServletContext());
AutowireCapableBeanFactory beanFactory =
ctx.getAutowireCapableBeanFactory();
beanFactory.autowireBean(this);
}
@Inject
public void setDispatch(Dispatch dispatch) {
this.dispatch = dispatch;
}
@Override
protected Dispatch getDispatch() {
return dispatch;
}
}
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> Date: Tue, 10 May 2011 15:35:44 +0300
> Message-ID: <[email protected]>
> Subject: Strange NullPointerException during getDispatch().execute(action);
> From: mariyan nenchev <[email protected]>
> To: [email protected],
> Google Web Toolkit <[email protected]>
> Content-Type: multipart/alternative; boundary=485b3973f087dec5ad04a2eb31b3
>
> Hi
>
> I am getting very strange exception during execution of dispatch action. It
> seems that getDispatch() returns null?! Here is the exception:
>
> rpcDispatcher: Exception while executing
> cayetano.games.updownbet.web.shared.handler.action.UpDownBetGameAction:
> null
> java.lang.NullPointerException
> at
>
> net.customware.gwt.dispatch.server.standard.AbstractStandardDispatchServlet.execute(AbstractStandardDispatchServlet.java:17)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
>
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
>
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:569)
> at
>
> com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:208)
> 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)
>
> Regards.
>
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