Thanks Chris,

After some more investigation I agree with your point about creating custom solution where good off the shelf solutions already exist.

With that in mind we are looking at Shiro and Spring Security as our preferred alternatives, and at the risk of starting something I'll regret do you or others have experience and views on the pros and cons of each within a struts and tomcat environment?

Zoran

On 11/6/2026 1:46 am, Christopher Schultz wrote:
Zoran,

On 6/8/26 8:23 PM, Zoran Avtarovski wrote:
Hi Guys,

We now have the need to support entra ID integration in our tomcat hosted apps. We currently use tomcats container-managed-security (JAAS) and we want to keep this active as well as integrating with Entra ID. The easiest approach to us was to find/create a realm to bridge to tomcat's container-managed-security to Entra ID. We haven't been able to find anything as yet and were wondering if anyone had any advice on past experiences or which approach to take.

Any assistance would be appreciated.

Do you have a preference for SAML or OIDC? Do you need to support service-provider-initiated login, or only identity-provider-initiated login?

Both of these are "easy" to implement for some definition of "easy". I rolled my own single-legged SAML for my application and, looking back on it, it was probably a mistake (mostly because it was a rathole).

I think there are some libraries out there that you might be able to integrate into your application to take care of this for you, but they probably won't integrate with Tomcat's realms.

-chris


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