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    <p>The SipServlet primary initialize some objects.</p> <p>ServletSipMultimediaConfrence.java:</p> <pre><code> @javax.servlet.sip.annotation.SipServlet public class ServletSipMultimediaConference extends SipServlet { ... @Override public void init(ServletConfig config) throws ServletException { super.init(config); ctx = config.getServletContext(); System.out.println("Init SIP Servlet!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"); SipFactory sipFactory = (SipFactory) getServletContext().getAttribute( SipServlet.SIP_FACTORY); if (sipFactory == null) { getServletContext().log("SIP Factory is null"); } else { getServletContext().log("SIP Factory set."); } ContextManager.getInstance().setSipFactory(sipFactory); getServletContext().log("SipServlet MultimediaConference initialized."); configureThirdPartyCallModule(); } ... } </code></pre> <p>If I try to invite a participant to a conference I got a NullPointerException cause my SipFactory is null!</p> <p>MultimediaConferenceImpl.java:</p> <pre><code>@POST @Path("/inviteParticipant") @Override public void inviteParticipant(@QueryParam("sessionId") String sessionId, @QueryParam("callSessionIdentifier") String callSessionIdentifier, @QueryParam("participant") String participant) throws PolicyException, ServiceException { CallSessionConference conferenceSession = getConferenceSession(null, callSessionIdentifier); if (conferenceSession == null) throw new ServiceException("No conference found using id: " + callSessionIdentifier); conferenceSession.inviteParticipant(participant); } </code></pre> <p>This leads to following exception:</p> <pre><code>Servlet.service() for servlet de.fhg.fokus.ngni.broker.sip.multimediaconference.JaxRsActivator threw exception: org.jboss.resteasy.spi.UnhandledException: java.lang.NullPointerException at org.jboss.resteasy.core.SynchronousDispatcher.handleApplicationException(SynchronousDispatcher.java:340) [resteasy-jaxrs-2.3.3.Final.jar:] at org.jboss.resteasy.core.SynchronousDispatcher.handleException(SynchronousDispatcher.java:214) [resteasy-jaxrs-2.3.3.Final.jar:] at org.jboss.resteasy.core.SynchronousDispatcher.handleInvokerException(SynchronousDispatcher.java:190) [resteasy-jaxrs-2.3.3.Final.jar:] at org.jboss.resteasy.core.SynchronousDispatcher.getResponse(SynchronousDispatcher.java:540) [resteasy-jaxrs-2.3.3.Final.jar:] at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:502) [resteasy-jaxrs-2.3.3.Final.jar:] at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:119) [resteasy-jaxrs-2.3.3.Final.jar:] at org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:208) [resteasy-jaxrs-2.3.3.Final.jar:] at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:55) [resteasy-jaxrs-2.3.3.Final.jar:] at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:50) [resteasy-jaxrs-2.3.3.Final.jar:] at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.1.Final.jar:1.0.1.Final] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329) [jbossweb-7.0.16.Final.jar:] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.16.Final.jar:] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275) [jbossweb-7.0.16.Final.jar:] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161) [jbossweb-7.0.16.Final.jar:] at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:153) [jboss-as-web-7.1.2.Final.jar:7.1.2.Final] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155) [jbossweb-7.0.16.Final.jar:] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [jbossweb-7.0.16.Final.jar:] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [jbossweb-7.0.16.Final.jar:] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368) [jbossweb-7.0.16.Final.jar:] at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877) [jbossweb-7.0.16.Final.jar:] at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:679) [jbossweb-7.0.16.Final.jar:] at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:931) [jbossweb-7.0.16.Final.jar:] at java.lang.Thread.run(Thread.java:724) [rt.jar:1.7.0_25] Caused by: java.lang.NullPointerException at de.fhg.fokus.ngni.broker.sip.thirdpartycall.Call.&lt;init&gt;(Call.java:100) [classes:] at de.fhg.fokus.ngni.broker.sip.thirdpartycall.CallSessionThirdParty.createCallee(CallSessionThirdParty.java:141) [classes:] at de.fhg.fokus.ngni.broker.sip.thirdpartycall.CallSessionThirdParty.&lt;init&gt;(CallSessionThirdParty.java:104) [classes:] at de.fhg.fokus.ngni.broker.sip.multimediaconference.CallSessionConference.inviteParticipant(CallSessionConference.java:96) [classes:] at de.fhg.fokus.ngni.broker.sip.multimediaconference.MultimediaConferenceImpl.inviteParticipant(MultimediaConferenceImpl.java:242) [classes:] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.7.0_25] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [rt.jar:1.7.0_25] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.7.0_25] at java.lang.reflect.Method.invoke(Method.java:606) [rt.jar:1.7.0_25] at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:167) [resteasy-jaxrs-2.3.3.Final.jar:] at org.jboss.resteasy.core.ResourceMethod.invokeOnTarget(ResourceMethod.java:257) [resteasy-jaxrs-2.3.3.Final.jar:] at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:222) [resteasy-jaxrs-2.3.3.Final.jar:] at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:211) [resteasy-jaxrs-2.3.3.Final.jar:] at org.jboss.resteasy.core.SynchronousDispatcher.getResponse(SynchronousDispatcher.java:525) [resteasy-jaxrs-2.3.3.Final.jar:] ... 19 more </code></pre> <p>This happens cause my SipFactory is null when Call.java try to get it from servlet-context.</p> <pre><code>static { factory = ContextManager.getInstance().getSipFactory(); } </code></pre> <p>ContextManager is a helper class:</p> <pre><code>public class ContextManager { private SipFactory factory; // private BundleContext bundleContext; private static ContextManager cm = new ContextManager(); public static ContextManager getInstance() { return cm; } public SipFactory getSipFactory() { return factory; } public void setSipFactory(SipFactory factory) { this.factory = factory; } } </code></pre> <p>My full log on DEBUG level here: <a href="https://community.jboss.org/thread/232864" rel="nofollow">https://community.jboss.org/thread/232864</a></p>
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