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java.lang.NullPointerException: null	at org.apache.shiro.mgt.AuthorizingSecurityManager.isPermitted(AuthorizingSecurityManager.java:113)	at org.apache.shiro.subject.support.DelegatingSubject.isPermitted(DelegatingSubject.java:158)	at org.obiba.opal.web.security.AuthorizationInterceptor$1.apply(AuthorizationInterceptor.java:168)	at org.obiba.opal.web.security.AuthorizationInterceptor$1.apply(AuthorizationInterceptor.java:163)	at com.google.common.collect.Iterators$7.computeNext(Iterators.java:647)	at com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:143)	at com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:138)	at com.google.common.collect.Iterators$5.hasNext(Iterators.java:542)	at com.google.common.collect.ImmutableSet.copyOf(ImmutableSet.java:314)	at com.google.common.collect.ImmutableSet.copyOf(ImmutableSet.java:300)	at org.obiba.opal.web.security.AuthorizationInterceptor.allowed(AuthorizationInterceptor.java:163)	at org.obiba.opal.web.security.AuthorizationInterceptor.allowed(AuthorizationInterceptor.java:177)	at org.obiba.opal.web.security.AuthorizationInterceptor.postProcess(AuthorizationInterceptor.java:85)	at org.obiba.opal.web.ws.intercept.RequestCycleInterceptor.postProcess(RequestCycleInterceptor.java:82)	at org.jboss.resteasy.core.interception.ContainerResponseFilterRegistry$ContainerResponseFilterFacade.filter(ContainerResponseFilterRegistry.java:47)	at org.jboss.resteasy.core.ServerResponseWriter.executeFilters(ServerResponseWriter.java:122)	at org.jboss.resteasy.core.ServerResponseWriter.writeNomapResponse(ServerResponseWriter.java:49)	at org.jboss.resteasy.core.SynchronousDispatcher.writeException(SynchronousDispatcher.java:153)	at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:372)	at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:179)	at org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:220)	at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:56)	at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:51)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:848)	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:684)	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1496)	at org.obiba.opal.server.httpd.AuthenticationFilter.doFilterInternal(AuthenticationFilter.java:66)	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)	at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:343)	at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:260)	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1467)	at org.obiba.opal.server.httpd.OpalVersionFilter.doFilterInternal(OpalVersionFilter.java:39)	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1467)	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:499)	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1086)	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:428)	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1020)	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)	at org.eclipse.jetty.server.handler.HandlerList.handle(HandlerList.java:52)	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)	at org.eclipse.jetty.server.Server.handle(Server.java:370)	at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:494)	at org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:971)	at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:1033)	at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:644)	at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235)	at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82)	at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:667)	at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:52)	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)	at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543)	at java.lang.Thread.run(Thread.java:744)