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From "Sunny Saxena" <>
Subject RE: Location of JAAS config file
Date Sun, 11 Jun 2006 09:43:45 GMT
I created the gbean and the loginmodules can now be found. :)

But now I get the following error: DO NOT


        at Error filling callback list


Caused by: java.lang.NullPointerException
        at java.lang.String.<init>(

-----Original Message-----
From: Sunny Saxena [] 
Sent: Sunday, June 11, 2006 12:15 PM
Subject: RE: Location of JAAS config file

Sorry, if I am getting this wrong.
The scenario that I have is something like this:

I have an ear deployed under geronimo.
The ear contains a web-app which at one point of time, asks a user for a
username and password.
This username/password are authenticated using JAAS. The Loginmodules
defined for this JAAS authentication are placed in the JAAS config file.

The problem is not with authenticating with geronimo, but with my
internal authentication. The file needed for my authentication, needs to
be set as the java system property. If I add that to my geronimo.bat
file, then I can see the property getting set. (in Console > JVM

But when the code tries to get it, its failing, and saying that no login
modules are defined.

-----Original Message-----
From: David Jencks []
Sent: Sunday, June 11, 2006 10:59 AM
Subject: Re: Location of JAAS config file

On Jun 10, 2006, at 10:01 PM, Sunny Saxena wrote:

> What if I don't want to use geronimo's security realms. My application

> internally challenges the user for authentication and for that it uses

> JAAS. Now jaas uses its config file to pick up login module 
> definitions... I need to specify the location of the config file. On 
> other app servers like weblogic, I used to add the system property 
>\example.conf in the server 
> startup file, in the java execution path.
> But in geronimo, doing that is not working.

correct.  We don't use that style of jaas configuration.
> I hope I got my point through. :)
> Thanks
> PS: the application is already built. We don't want to make major 
> changes in its working structure.

You should be able to do this without changing your packaged j2ee  
application at all.   You will need a geronimo deployment plan.  What  
you need to do is write gbean configurations that set up the equivalent
login module configuration to your example.conf and include these in
your geronimo plan.  When you deploy the app with this plan, the login
modules will be properly configured.  Aaron provided some gbean
configuration example below although he used a different realm name than
you, something closer to your example would be

    <gbean name="ExampleRealm"
        <attribute name="realmName">example</attribute>
        <reference name="ServerInfo">
        <reference name="LoginService">
        <xml-reference name="LoginModuleConfiguration">
                <login-module control-flag="REQUIRED"
server-side="true" wrap-principals="false">

This would go as the last element in your geronimo plan.  Since I don't
know what kind of app you are deploying (ejb, web, ear, app-
client) I'm not going to guess at what the rest of the plan might look

david jencks

> -----Original Message-----
> From: Alan D. Cabrera []
> Sent: Saturday, June 10, 2006 9:36 PM
> To:
> Subject: Re: Location of JAAS config file
> I would change that statement to:
> In Geronimo, we don't have use a JAAS conf file.  You could instead 
> declare and deploy security realms using a Geronimo deployment plan, 
> like many other components.
> Regards,
> Alan
> Aaron Mulder wrote:
>> In Geronimo, we don't use a JAAS conf file, but instead let you 
>> declare and deploy security realms using a Geronimo deployment plan, 
>> like many other components.  There is some special syntax for 
>> security
>> realms, though.
>> Basically, to create a realm called DatabaseRealm using the JAAS 
>> login
>> module DBLoginModule and the flag required, you could use a plan like

>> the one below.  Either you can deploy this plan with a JAR containing

>> the DBLoginModule class, or you could put the login module class in a

>> JAR in the Geronimo repository and then add a dependency on that JAR 
>> to the environment element in the plan and deploy the plan on its 
>> own.
>> Another option is to add your security realm (the "gbean" element in 
>> the plan below) directly to the Geronimo plan for a WAR or EAR or 
>> something, and add the login module classes to that component (in 
>> WEB-INF/lib or in an EJB JAR, etc.).  That way the realm would always

>> be deployed and undeployed with that module.
>> Thanks,
>>    Aaron
>> <module xmlns="">
>>    <environment>
>>        <moduleId>
>>            <artifactId>DatabaseRealm</artifactId>
>>        </moduleId>
>>        <dependencies>
>>            <dependency>
>>                <groupId>geronimo</groupId>
>>                <artifactId>j2ee-security</artifactId>
>>                <type>car</type>
>>            </dependency>
>>        </dependencies>
>>    </environment>
>>    <gbean name="DatabaseRealm"
>> class="">
>>        <attribute name="realmName">DatabaseRealm</attribute>
>>        <reference name="ServerInfo">
>>            <name>ServerInfo</name>
>>        </reference>
>>        <reference name="LoginService">
>>            <name>JaasLoginService</name>
>>        </reference>
>>        <xml-reference name="LoginModuleConfiguration">
>>            <login-config
>> xmlns="">
>>                <login-module control-flag="REQUIRED"
>> server-side="true" wrap-principals="false">
>> <login-domain-name>DatabaseRealm</login-domain-name>
>> <login-module-class>com.test.DBLoginModule</login-module-class>
>>                    <option name="...">..</option>
>>                    <option name="...">...</option>
>>                </login-module>
>>            </login-config>
>>        </xml-reference>
>>    </gbean>
>> </module>
>> On 6/10/06, Sunny Saxena <> wrote:
>>> My application deployed under gerenimo, uses JAAS for 
>>> authentication.
>>> The
>>> login modules are picked up from a config file, example.conf.
>>> Generally in other app servers, I just add the system property,
>>> in the java execution path, and it works. But in gerenimo, it is 
>>> unable to locate any login modules.
>>> The Error:
>>> No LoginModules configured

>>> for example
>>> File:
>>> example.conf:::
>>> example {
>>> com.test.DBLoginModule required;
>>> }
>>> Thanks
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