[jbossseam-issues] [JBoss JIRA] Created: (JBSEAM-4469) jpaidentity store null pointer when role collection is not initialezed. should throw exception.

[Eric Link (JIRA)]

jpaidentity store null pointer when role collection is not initialezed. should throw exception.
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                 Key: JBSEAM-4469
                 URL: https://jira.jboss.org/jira/browse/JBSEAM-4469
             Project: Seam
          Issue Type: Bug
          Components: Framework
    Affects Versions: 2.2.0.GA
         Environment: jboss 5.1, linux x64, jdk 1.5
            Reporter: Eric Link


jpa identity store requires the roles collection to be initialezed, which is fine. if the collection is null, then a null pointer is thrown, but it is not clear _why_ w/o looking at the source.  could add guard check and throw exception w/ explanaion

Caused by: java.lang.NullPointerException
	at org.jboss.seam.security.management.JpaIdentityStore.grantRole(JpaIdentityStore.java:374)
	at org.jboss.seam.security.management.IdentityManager.grantRole(IdentityManager.java:136)

      if (xrefClass == null)
      {
         // If this is a Many-To-Many relationship, simply add the role 
         if ( userRolesProperty.getValue(user) == null ) { //NEW
             throw new IllegalStateException("@UserRoles collection is nul, it must be initialized to grant rolesl"); //NEW
         } //NEW
         ((Collection) userRolesProperty.getValue(user)).add(roleToGrant);
      }
      else
      {
         // Otherwise we need to insert a cross-reference entity instance


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