JAAS login configuration error on Tomcat. Unable to loas JAAS config file

Question

I am trying to implement a simple JAAS module with realm configuration on Tomcat 7. I am trying to implement this based on the following link:

http://www.byteslounge.com/tutorials/jaas-authentication-in-tomcat-example

I have placed jass.config in CATALINA_HOME/conf folder and have added the following code to CATALINA_HOME/bin/catalina.bat file

JAVA_OPTS=$JAVA_OPTS "-Djava.security.auth.login.config==$CATALINA_HOME/conf/jaas.config"     

However, once I start Tomcat and attempt to access the protected admin.html page, I get the basic login dialog of the browser (as expected). But while trying to log in, Tomcat reports the following error:

SEVERE: Unexpected error
java.lang.SecurityException: Unable to locate a login configuration

Please help how to make Tomcat find the JAAS config file.

Answer 1

The fact that you're using .bat file suggests you're using Windows where variables get referred to using %VARIABLE% notation instead of $VARIABLE . Try changing the expression to:

set JAVA_OPTS=%JAVA_OPTS% -Djava.security.auth.login.config=%CATALINA_HOME%/conf/jaas.config