4:07 p.m.
anil halil created SEAMREST-58:
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Summary: NullPointerException when templating enabled
Key: SEAMREST-58
URL: https://issues.jboss.org/browse/SEAMREST-58
Project: Seam REST
Issue Type: Bug
Components: Templating
Affects Versions: 3.1.0.Final
Reporter: anil halil
I enabled solder catch with this annotations
@ExceptionMapping.List({
@ExceptionMapping(exceptionType = NotFoundException.class, status = 404, message =
"Requested resource does not exist."),
@ExceptionMapping(exceptionType = IllegalArgumentException.class, status = 400,
message = "Illegal argument value.")
})
which should produce 404 for unknown/not mapped urls. But when i enter an unknown url it
produces
java.lang.NullPointerException
at
org.jboss.seam.rest.templating.TemplatingMessageBodyWriter.findAnnotation(TemplatingMessageBodyWriter.java:112)
at
org.jboss.seam.rest.templating.TemplatingMessageBodyWriter.isWriteable(TemplatingMessageBodyWriter.java:97)
at
org.jboss.seam.rest.templating.TemplatingMessageBodyWriter$Proxy$_$$_WeldClientProxy.isWriteable(TemplatingMessageBodyWriter$Proxy$_$$_WeldClientProxy.java)
at
org.jboss.resteasy.spi.ResteasyProviderFactory.getMessageBodyWriter(ResteasyProviderFactory.java:1033)
at
org.jboss.resteasy.core.SynchronousDispatcher.resolveContentTypeByAccept(SynchronousDispatcher.java:615)
at
org.jboss.resteasy.core.SynchronousDispatcher.writeJaxrsResponse(SynchronousDispatcher.java:591)
at
org.jboss.resteasy.core.SynchronousDispatcher.writeFailure(SynchronousDispatcher.java:433)
at
org.jboss.resteasy.core.SynchronousDispatcher.executeExceptionMapper(SynchronousDispatcher.java:335)
at
org.jboss.resteasy.core.SynchronousDispatcher.handleException(SynchronousDispatcher.java:235)
at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:129)
at
org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:208)
at
org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:55)
at
org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:50)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:848)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:594)
at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1365)
at
org.jboss.solder.servlet.event.ServletEventBridgeFilter.doFilter(ServletEventBridgeFilter.java:74)
at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1336)
at
org.jboss.solder.servlet.exception.CatchExceptionFilter.doFilter(CatchExceptionFilter.java:65)
at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1336)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:483)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:119)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:524)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:233)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1065)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:412)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:192)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:999)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
at
org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:250)
at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:149)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:111)
at org.eclipse.jetty.server.Server.handle(Server.java:351)
at
org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:454)
at
org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:890)
at
org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:944)
at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:634)
at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:230)
at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:76)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:609)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:45)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:599)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:534)
at java.lang.Thread.run(Thread.java:722)
The problem arise from
protected MediaType resolveContentTypeByAccept(List<MediaType> accepts, Object
entity)
{
if (accepts == null || accepts.size() == 0 || entity == null)
{
return MediaType.WILDCARD_TYPE;
}
Class clazz = entity.getClass();
Type type = null;
if (entity instanceof GenericEntity)
{
GenericEntity gen = (GenericEntity) entity;
clazz = gen.getRawType();
type = gen.getType();
}
for (MediaType accept : accepts)
{
if (providerFactory.getMessageBodyWriter(clazz, type, null, accept) != null)
{
return accept;
}
}
return MediaType.WILDCARD_TYPE;
}
as you see getMessageBodyWriter has null as annotations parameter and
TemplatingMessageBodyWriter findAnnotation function has this line
for (Annotation a : annotations)
which rises NullPointerException
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