https://issues.apache.org/bugzilla/show_bug.cgi?id=50855
Summary: NullPointerException thrown in
AuthenticatorBase.register method for null principal
Product: Tomcat 7
Version: 7.0.6
Platform: PC
OS/Version: Windows XP
Status: NEW
Severity: normal
Priority: P2
Component: Catalina
AssignedTo: [email protected]
ReportedBy: [email protected]
The description is the same as for the older bug 39255, except it is produced
at
org.apache.catalina.authenticator.AuthenticatorBase.register(AuthenticatorBase.java:688)
Please, see the following link
https://issues.apache.org/bugzilla/show_bug.cgi?id=39255
This bug has been fixed for Tomcat 5.5.16, but it looks to appear again in
Tomcat 7.
This is the excerpt from AuthenticatorBase.java:
public void register(Request request, HttpServletResponse response,
Principal principal, String authType,
String username, String password) {
if (log.isDebugEnabled())
log.debug("Authenticated '" + principal.getName() + "' with type '"
+ authType + "'");
It is seen that there is no more condition to verify if principal is null.
Specifically, the NullPointerException is thrown when calling
HttpServletRequest.logout method from a JSF managed bean. According to Java EE
6 documentation, the logout method establishes null as the value returned when
getUserPrincipal, getRemoteUser, and getAuthType is called on the request.
Hence, the exception thrown.
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