I want to prevent the use of HTTP VERB annotations in order to force
sub-classes to respond with specific class types via abstract methods
that I prototype in a base class. I marked the isAnnotated() method as
@Override and final and returned false. However, when it returns false
I get the following error:
java.lang.NullPointerException
at
org
.restlet
.engine.resource.AnnotationUtils.getAnnotation(AnnotationUtils.java:106)
at
org.restlet.resource.ServerResource.getAnnotation(ServerResource.java:
649)
at org.restlet.resource.ServerResource.doHandle(ServerResource.java:
329)
at
org
.restlet
.resource.ServerResource.doNegotiatedHandle(ServerResource.java:592)
at
org
.restlet
.resource.ServerResource.doConditionalHandle(ServerResource.java:260)
at org.restlet.resource.ServerResource.handle(ServerResource.java:921)
at
com.h9labs.vangaea.server.rest.BaseResource.handle(BaseResource.java:
159)
at org.restlet.resource.Finder.handle(Finder.java:510)
at org.restlet.routing.Filter.doHandle(Filter.java:156)
at org.restlet.routing.Filter.handle(Filter.java:201)
at org.restlet.routing.Router.handle(Router.java:490)
at org.restlet.routing.Filter.doHandle(Filter.java:156)
at org.restlet.routing.Filter.handle(Filter.java:201)
at org.restlet.routing.Filter.doHandle(Filter.java:156)
at org.restlet.routing.Filter.handle(Filter.java:201)
at org.restlet.routing.Filter.doHandle(Filter.java:156)
at
org.restlet.engine.application.StatusFilter.doHandle(StatusFilter.java:
153)
at org.restlet.routing.Filter.handle(Filter.java:201)
at org.restlet.routing.Filter.doHandle(Filter.java:156)
at org.restlet.routing.Filter.handle(Filter.java:201)
at org.restlet.engine.ChainHelper.handle(ChainHelper.java:111)
at
org
.restlet
.engine.application.ApplicationHelper.handle(ApplicationHelper.java:71)
at org.restlet.Application.handle(Application.java:396)
at org.restlet.routing.Filter.doHandle(Filter.java:156)
at org.restlet.routing.Filter.handle(Filter.java:201)
at org.restlet.routing.Router.handle(Router.java:490)
at org.restlet.routing.Filter.doHandle(Filter.java:156)
at org.restlet.routing.Filter.handle(Filter.java:201)
at org.restlet.routing.Router.handle(Router.java:490)
at org.restlet.routing.Filter.doHandle(Filter.java:156)
at org.restlet.routing.Filter.handle(Filter.java:201)
at org.restlet.engine.ChainHelper.handle(ChainHelper.java:111)
at org.restlet.Component.handle(Component.java:397)
at org.restlet.Server.handle(Server.java:350)
at org.restlet.engine.ServerHelper.handle(ServerHelper.java:71)
at
org.restlet.engine.http.HttpServerHelper.handle(HttpServerHelper.java:
149)
at org.restlet.ext.servlet.ServerServlet.service(ServerServlet.java:
932)
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.handle(ServletHandler.java:362)
at
org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:
216)
at
org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
at
org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:
216)
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.headerComplete(HttpConnection.java:829)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:513)
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)
--
-a
"Ideally, a code library must be immediately usable by naive
developers, easily customized by more sophisticated developers, and
readily extensible by experts." -- L. Stein
------------------------------------------------------
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