[jboss-user] [Security & JAAS/JBoss] - Invalid authentication attempt, principal=null BaseConnectio

[Yilativs]

Hello

My application runs on JBoss 3.2.8.SP1
all works fine until application stays without activity about 30mins
after that I recieve.

Invalid authentication attempt, principal=null
  |  java.lang.SecurityException: Invalid authentication attempt, principal=null
  | at 
  | org.jboss.resource.connectionmanager.BaseConnectionManager2.getSubject(BaseConnectionManager2.java:6
  | 97)
  | at 
  | org.jboss.resource.connectionmanager.BaseConnectionManager2.allocateConnection(BaseConnectionManager
  | 2.java:526)
  | at 
  | org.jboss.resource.connectionmanager.BaseConnectionManager2$ConnectionManagerProxy.allocateConnectio
  | n(BaseConnectionManager2.java:926)
  | at 
  | org.jboss.resource.adapter.jdbc.WrapperDataSource.getConnection(WrapperDataSource.java:88)
  | 

Does anybody know why it happens and how to fix it?

Regards,
Vitaliy S

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