[jboss-user] [Security & JAAS/JBoss] - NPE in GenericPrincipal

[edgoquist]

I'm trying implement SSO and I'm having some trouble. I've been dealing with most of it but now I've got this:

01:00:44,021 ERROR [JBossWebRealm] Error during authenticate
java.lang.NullPointerException
        at java.util.Arrays.mergeSort(Arrays.java:1144)
        at java.util.Arrays.mergeSort(Arrays.java:1155)
        at java.util.Arrays.sort(Arrays.java:1079)
        at org.apache.catalina.realm.GenericPrincipal.(GenericPrincipal.java:96)
        at org.jboss.web.tomcat.security.JBossGenericPrincipal.(JBossGenericPrincipal.java:71)
        at org.jboss.web.tomcat.security.JBossWebRealm.getCachingPrincipal(JBossWebRealm.java:675)
        at org.jboss.web.tomcat.security.JBossWebRealm.authenticate(JBossWebRealm.java:409)
        at org.jboss.web.tomcat.security.login.WebAuthentication.login(WebAuthentication.java:93)

... rest of trace truncated.


The GenericPrincipal code looks like this around line 96:


  |    92           if (roles != null) {
  |    93               this.roles = new String[roles.size()];
  |    94               this.roles = (String[]) roles.toArray(this.roles);
  |    95               if (this.roles.length > 0)
  |    96                   Arrays.sort(this.roles);
  |    97           }
  | 

Does this mean that one of my Roles is null? Where are the roles coming from?  There are 2 places where I can specify roles that I know of. One is in the LoginProvider that I wrote. The other is in sso-cfg.xml.  The LoginProvider will return at least "Other" if no role exists for an otherwise authenticatable user.

I'm using UsernameAndPasswordLoginModule.

Can anyone help please?  thanks.




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