0 Replies Latest reply on Sep 16, 2013 12:50 PM by xybrek

    NoClassDefFoundError: Could not initialize class org.jboss.errai.jaxrs.ErraiProvider

    xybrek Newbie

      I'm having some issue running my GWT/Errai app in GAE (Google App Engine). Also not sure why my app cannot initialize ErraiProvider?

       

       

      Error:

       

       

      Uncaught exception from servlet

      java.lang.NoClassDefFoundError: Could not initialize class org.jboss.errai.jaxrs.ErraiProvider

        at com.google.appengine.runtime.Request.process-c75f0be3ef583674(Request.java)

        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)

        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)

        at java.lang.reflect.Constructor.newInstance(Constructor.java:33)

        at org.jboss.resteasy.core.ConstructorInjectorImpl.construct(ConstructorInjectorImpl.java:132)

        at org.jboss.resteasy.spi.ResteasyProviderFactory.createProviderInstance(ResteasyProviderFactory.java:1801)

        at org.jboss.resteasy.spi.ResteasyProviderFactory.addMessageBodyReader(ResteasyProviderFactory.java:681)

        at org.jboss.resteasy.spi.ResteasyProviderFactory.registerProvider(ResteasyProviderFactory.java:1128)

        at org.jboss.resteasy.spi.ResteasyProviderFactory.registerProvider(ResteasyProviderFactory.java:1085)

        at org.jboss.resteasy.spi.ResteasyProviderFactory.registerProvider(ResteasyProviderFactory.java:1029)

        at org.jboss.resteasy.spi.ResteasyDeployment.registerProvider(ResteasyDeployment.java:508)

        at org.jboss.resteasy.spi.ResteasyDeployment.registration(ResteasyDeployment.java:316)

        at org.jboss.resteasy.spi.ResteasyDeployment.start(ResteasyDeployment.java:226)

        at org.jboss.resteasy.plugins.server.servlet.ResteasyBootstrap.contextInitialized(ResteasyBootstrap.java:28)

        at org.jboss.resteasy.plugins.guice.GuiceResteasyBootstrapServletContextListener.contextInitialized(GuiceResteasyBootstrapServletContextListener.java:22)

        at com.myapp.server.guice.CustomGuiceResteasyBootstrapServletContextListener.contextInitialized(CustomGuiceResteasyBootstrapServletContextListener.java:48)

        at org.mortbay.jetty.handler.ContextHandler.startContext(ContextHandler.java:548)

        at org.mortbay.jetty.servlet.Context.startContext(Context.java:136)

        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 com.google.tracing.TraceContext$TraceContextRunnable.runInContext(TraceContext.java:435)

        at com.google.tracing.TraceContext$TraceContextRunnable$1.run(TraceContext.java:442)

        at com.google.tracing.CurrentContext.runInContext(CurrentContext.java:186)

        at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext.java:306)

        at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContext(TraceContext.java:298)

        at com.google.tracing.TraceContext$TraceContextRunnable.run(TraceContext.java:439)

        at java.lang.Thread.run(Thread.java:722)

       

      Code (Resteasy):

       

          @Override

          public void contextInitialized(ServletContextEvent servletContextEvent)  {

              ServletContext context = servletContextEvent.getServletContext();

              if (context != null) {

                  if (context.getInitParameter("user-base-url") != null) {

                      userBaseUrl = context.getInitParameter("user-base-url");

                  }

                  String override = System.getProperty("staticBaseUrl");

                  if (override != null || context.getInitParameter("static-base-url") != null) {

                      staticBaseUrl = (override != null) ? override : context.getInitParameter("static-base-url");

                  }

              }

              super.contextInitialized(servletContextEvent); // <--- Line 48

          }

       

       

      Update:

       

      This is my application web XML config:

       

          <context-param>

              <param-name>resteasy.guice.modules</param-name>

              <param-value>com.myapp.server.guice.ServeModule</param-value>

          </context-param>

       

        <context-param>

        <param-name>resteasy.providers</param-name>

        <param-value>org.jboss.errai.jaxrs.ErraiProvider</param-value>

        </context-param>

       

          <listener>

        <listener-class>

        com.myapp.server.guice.CustomGuiceResteasyBootstrapServletContextListener

        </listener-class>

          </listener>

       

       

        <context-param> 

          <param-name>resteasy.servlet.mapping.prefix</param-name> 

          <param-value>/</param-value> 

        </context-param>

       

          <servlet>

              <servlet-name>Resteasy</servlet-name>

              <servlet-class>

                  org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher

              </servlet-class>

          </servlet>

       

       

          <servlet-mapping>

              <servlet-name>Resteasy</servlet-name>

              <url-pattern>/*</url-pattern>

          </servlet-mapping>