Problem creating custom filter

[kokice]

Hi there.

I'm trying to create a custom filter. My goal is a filter which is run on every request. This is a simplified version of my filter:

@Startup
@Name(value = "TestFilter")
@Scope(value = ScopeType.APPLICATION)
@BypassInterceptors
@Filter(within = "org.jboss.seam.web.ContextFilter")
public class TestFilter extends AbstractFilter {

    @Logger
    private static Log log;

    @In(create = true, required = true)
    private RegService regservice;

    public void doFilter(final ServletRequest request,
            final ServletResponse response, final FilterChain filterChain)
                    throws IOException, ServletException {
         // some code
         filterChain.doFilter(request, response);
    }

My RegService is a stateless Session bean. But i'm getting this, not on every request, but quite often:

23:42:50,301 ERROR [[Faces Servlet]] Servlet.service() for servlet Faces Servlet threw exception
java.lang.NullPointerException
        at org.jboss.seam.contexts.Contexts.destroy(Contexts.java:241)
        at org.jboss.seam.contexts.Lifecycle.endCall(Lifecycle.java:95)
        at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:122)
        at org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:166)
        at org.jboss.seam.intercept.JavaBeanInterceptor.invoke(JavaBeanInterceptor.java:102)
        at se.test.TestFilter_$$_javassist_0.doFilter(TestFilter_$$_javassist_0.java)
        at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
        at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
        at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:182)
        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:432)
        at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
        at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
        at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
        at java.lang.Thread.run(Thread.java:613)

Why this? What am I missing here?

And is my custom filter correct?

Any help or hints are appreciated. ;)

BR

[atamur]

looking into source this means that session context thread local is null ... which is quite strange ... i think it would be helpful if you mentioned your seam version

[kokice]

Hi Ilya,

of course. Stupid of me. I'm running the latest version, which is 2.1.0. I have not downloaded the SP1 release though, however I suspect this has to do with something else.

[tazman]

Can you annotate a class with @BypassInterceptors and use injection in it (as you do for RegService)?

[kokice]

Tom Claire wrote on Nov 04, 2008 10:46:


Can you annotate a class with @BypassInterceptors and use injection in it (as you do for RegService)?

Hi Tom,

you are probably right, that is not possible. However, even if I remove that, it still does not work.

The interesting part is that it actually works if I find my bean with a regular JNDI-lookup. Then it works.

Someone told me that this is a bug in JBoss 4.x. Maybe someone can confirm this?