[jbossseam-issues] [JBoss JIRA] Commented: (JBSEAM-1023) Looking up a filtered SMPC in non-faces servlet throws NPE

Looking up a filtered SMPC in non-faces servlet throws NPE ---------------------------------------------------------- Key: JBSEAM-1023 URL: http://jira.jboss.com/jira/browse/JBSEAM-1023 Project: JBoss Seam Issue Type: Bug Components: Core Reporter: Christian Bauer Assigned To: Gavin King Priority: Minor Fix For: 1.2.1.GA My servlet does: EntityManager em = ((EntityManager)org.jboss.seam.Component.getInstance("entityManager")); em.joinTransaction(); file = (!"".equals(id)) ? em.find(File.class, Long.parseLong(id)) : null; This worked OK, but after I enabled this filter: <core:filter name="accessLevelFilter"> <core:name>accessLevelFilter</core:name> <core:parameters> <key>currentAccessLevel</key> <value>#{currentAccessLevel}</value> </core:parameters> </core:filter> <core:managed-persistence-context name="entityManager" auto-create="true" entity-manager-factory="#{wikiEntityManagerFactory}"> <core:filters><value>#{accessLevelFilter}</value></core:filters> </core:managed-persistence-context> It fails with: Caused by: java.lang.NullPointerException: facesContext at org.apache.myfaces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:379) at org.jboss.seam.core.Expressions$1.getValue(Expressions.java:57) at org.jboss.seam.persistence.HibernatePersistenceProvider.enableFilter(HibernatePersistenceProvider.java:60) at org.jboss.seam.core.ManagedPersistenceContext.initEntityManager(ManagedPersistenceContext.java:85) at org.jboss.seam.core.ManagedPersistenceContext.getEntityManager(ManagedPersistenceContext.java:105) at sun.reflect.GeneratedMethodAccessor1775.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.jboss.seam.util.Reflections.invoke(Reflections.java:18) at org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:121) at org.jboss.seam.Component.callComponentMethod(Component.java:1834) at org.jboss.seam.Component.unwrap(Component.java:1860) at org.jboss.seam.Component.getInstance(Component.java:1657) at org.jboss.seam.Component.getInstance(Component.java:1610) at org.jboss.seam.Component.getInstance(Component.java:1604) at org.jboss.seam.wiki.core.ui.FileServlet.doGet(FileServlet.java:70) The expression "#{currentAccessLevel}" can either be resolved to a variable in the SESSION context or to a factory method on one of my components.