Re: java.lang.NullPointerException at com.google.gwt.requestfactory.server.RequestFactoryServlet.doPost(RequestFactoryServlet.java:94)

Can you try to reproduce this from trunk? This code has gone through several revisions since 2.1.0 M3

On Thu, Sep 9, 2010 at 6:46 PM, Rene Vielma <renevielma@gmail.com> wrote:

Hello.

I had created a new project using roo from eclipse, with GWT
capability. The project only contains one entity with two string
attributes.
And the scaffold worked fine.

then I added a birthDate attribute. And the scaffold work fine too..
but the eclipse console throws:

GRAVE: null
java.lang.NullPointerException
       at
com.google.gwt.requestfactory.server.JsonRequestProcessor.encodePropertyValueFromDataStore(JsonRequestProcessor.java:
353)
       at
com.google.gwt.requestfactory.server.JsonRequestProcessor.getJsonObject(JsonRequestProcessor.java:
522)
       at
com.google.gwt.requestfactory.server.JsonRequestProcessor.toJsonObject(JsonRequestProcessor.java:
1103)
       at
com.google.gwt.requestfactory.server.JsonRequestProcessor.processJsonRequest(JsonRequestProcessor.java:
722)
       at
com.google.gwt.requestfactory.server.JsonRequestProcessor.decodeAndInvokeRequest(JsonRequestProcessor.java:
177)
       at
com.google.gwt.requestfactory.server.JsonRequestProcessor.decodeAndInvokeRequest(JsonRequestProcessor.java:
56)
       at
com.google.gwt.requestfactory.server.RequestFactoryServlet.doPost(RequestFactoryServlet.java:
87)
       at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
       at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
       at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:
487)
       at org.mortbay.jetty.servlet.ServletHandler
$CachedChain.doFilter(ServletHandler.java:1097)
       at
org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:
77)
       at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:
76)
       at org.mortbay.jetty.servlet.ServletHandler
$CachedChain.doFilter(ServletHandler.java:1088)
       at
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:
88)
       at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:
76)
       at org.mortbay.jetty.servlet.ServletHandler
$CachedChain.doFilter(ServletHandler.java:1088)
       at
org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter.doFilterInternal(OpenEntityManagerInViewFilter.java:
113)
       at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:
76)
       at org.mortbay.jetty.servlet.ServletHandler
$CachedChain.doFilter(ServletHandler.java:1088)
       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:
729)
       at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:
405)
       at
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:
152)
       at
org.mortbay.jetty.handler.RequestLogHandler.handle(RequestLogHandler.java:
49)
       at
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:
152)
       at org.mortbay.jetty.Server.handle(Server.java:324)
       at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:
505)
       at org.mortbay.jetty.HttpConnection
$RequestHandler.content(HttpConnection.java:843)
       at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:647)
       at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)
       at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380)
       at
org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:
395)
       at org.mortbay.thread.QueuedThreadPool
$PoolThread.run(QueuedThreadPool.java:488)
[WARN] /gwtRequest
java.lang.RuntimeException: java.lang.NullPointerException
       at
com.google.gwt.requestfactory.server.RequestFactoryServlet.doPost(RequestFactoryServlet.java:
94)
       at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
       at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
       at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:
487)
       at org.mortbay.jetty.servlet.ServletHandler
$CachedChain.doFilter(ServletHandler.java:1097)
       at

full trace here :
http://forum.springsource.org/attachment.php?attachmentid=3167&d=1284071613

I'm using sts 2.5.0 M3 + gwt 2.1.0 M3

any suggestions?

thanks

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