public PrincipalEntry(String principalClass,String principalName){
  if (principalClass == null || principalName == null)   throw new NullPointerException(ResourcesMgr.getString("null.principalClass.or.principalName"));
  this.principalClass=principalClass;
  this.principalName=principalName;
}

public PrincipalEntry ( String principalClass , String principalName ) { if ( principalClass == null || principalName == null ) throw new NullPointerException ( ResourcesMgr . getString ( "null.principalClass.or.principalName" ) ) ; this . principalClass = principalClass ; this . principalName = principalName ; }
a principalentry consists of the principal class and principal name .
