Jersy with Appengine Problem.

[Raghu rao]

Hi All,

Through my Application code in locally am able to hit third party services through using REST Services and the same code after deploying in the GAE cloud am getting the below error. for this below problem in one of the forum they mentioned to use the jar file "rome-0.8-sources". i have placed this jar file in build path but still am not able communicate with third party services. pls help on this, to resolve below issue. Thanks in Advance.

Logs :

com.sun.jersey.core.spi.component.ProviderFactory __getComponentProvider: The provider class, class com.sun.jersey.atom.rome.impl.provider.entity.AtomFeedProvider, could not be instantiated. Processing will continue but the class will not be utilized

java.lang.SecurityException: Unable to get members for class com.sun.jersey.atom.rome.impl.provider.entity.AtomFeedProvider
	at com.google.appengine.runtime.Request.process-5e9e611fd6ca6787(Request.java)
	at java.lang.Class.getDeclaredMethods(Class.java:256)
	at com.sun.jersey.core.reflection.MethodList.getAllDeclaredMethods(MethodList.java:70)
	at com.sun.jersey.core.reflection.MethodList.<init>(MethodList.java:64)
	at com.sun.jersey.core.spi.component.ComponentConstructor.getPostConstructMethods(ComponentConstructor.java:132)
	at com.sun.jersey.core.spi.component.ComponentConstructor.<init>(ComponentConstructor.java:124)
	at com.sun.jersey.core.spi.component.ProviderFactory.__getComponentProvider(ProviderFactory.java:165)
	at com.sun.jersey.core.spi.component.ProviderFactory.getComponentProvider(ProviderFactory.java:137)
	at com.sun.jersey.core.spi.component.ProviderServices.getComponent(ProviderServices.java:283)
	at com.sun.jersey.core.spi.component.ProviderServices.getServices(ProviderServices.java:163)
	at com.sun.jersey.core.spi.factory.MessageBodyFactory.initReaders(MessageBodyFactory.java:176)
	at com.sun.jersey.core.spi.factory.MessageBodyFactory.init(MessageBodyFactory.java:162)
	at com.sun.jersey.api.client.Client.init(Client.java:343)
	at com.sun.jersey.api.client.Client.access$000(Client.java:119)
	at com.sun.jersey.api.client.Client$1.f(Client.java:192)
	at com.sun.jersey.api.client.Client$1.f(Client.java:188)
	at com.sun.jersey.spi.inject.Errors.processWithErrors(Errors.java:193)
	at com.sun.jersey.api.client.Client.<init>(Client.java:188)
	at com.sun.jersey.api.client.Client.<init>(Client.java:171)
	at com.sun.jersey.api.client.Client.create(Client.java:683)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166)
	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
	at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388)
	at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
	at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
	at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
	at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
	at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
	at org.mortbay.jetty.Server.handle(Server.java:326)
	at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
	at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:923)
	at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
	at com.google.tracing.TraceContext$TraceContextRunnable.runInContext(TraceContext.java:437)
	at com.google.tracing.TraceContext$TraceContextRunnable$1.run(TraceContext.java:444)
	at com.google.tracing.CurrentContext.runInContext(CurrentContext.java:188)
	at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext.java:308)
	at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContext(TraceContext.java:300)
	at com.google.tracing.TraceContext$TraceContextRunnable.run(TraceContext.java:441)
	at java.lang.Thread.run(Thread.java:724)
Caused by: java.lang.reflect.InvocationTargetException
	at sun.reflect.GeneratedMethodAccessor50.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	... 46 more
Caused by: java.lang.NoClassDefFoundError: com/sun/syndication/io/FeedException (wrong name: src/java/com/sun/syndication/io/FeedException)
	at com.google.appengine.runtime.Request.process-5e9e611fd6ca6787(Request.java)
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:795)
	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
	at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
	at sun.reflect.GeneratedMethodAccessor5.invoke(Unknown Source)
	... 48 more

[Vinny P]

On Wed, Apr 30, 2014 at 5:27 AM, Raghu rao <raghu...@gmail.com> wrote:

Through my Application code in locally am able to hit third party services through using REST Services and the same code after deploying in the GAE cloud am getting the below error. for this below problem in one of the forum they mentioned to use the jar file "rome-0.8-sources". i have placed this jar file in build path but still am not able communicate with third party services.

Are you using Rome the Java RSS library? If so, then you're using a version that is pretty out of date: Rome 0.8 was released back in 2006.

Can you try compiling Rome from the source files hosted here: https://github.com/rometools/rome and see if that fixes the problem? 

 

 

-----------------

-Vinny P

Technology & Media Advisor

Chicago, IL

App Engine Code Samples: http://www.learntogoogleit.com