How best to modernize the 2002-era J2EE app?



I have this friend....


I have this friend who works on a java ee application (j2ee) application started in the early 2000's. Currently they add a feature here and there, but have a large codebase. Over the years the team has shrunk by 70%.


[Yes, the "i have this friend is". It's me, attempting to humorously inject teenage high-school counselor shame into the mix]


Java, Vintage 2002


The application uses EJB 2.1, struts 1.x, DAO's etc with straight jdbc calls (mixture of stored procedures and prepared statements). No ORM. For caching they use a mixture of OpenSymphony OSCache and a home-grown cache layer.

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Thanks in advance for taking a look :)


I'm hard at work on a J2EE web app (in JDeveloper) and recently added some functionality that required JSTL, and I've hit a little bit of a snag. Whenever I try to deploy my war on Weblogic 11g, I get the following error on the console:


[02:05:43 AM] Must choose only one of
libraries: JSTL 1.0, JSTL 1.2.


I only have one instance of the JSTL library listed under my WebLogic deployments (1.2.0.1).


Here's what I've tried so far:


Google. I've got nothing.
Removing all files with the string JSTL in them, in both my Weblogic
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How best to modernize the 2002-era J2EE app?
Programming Languages

I have this friend....


I have this friend who works on a java ee application (j2ee) application started in the early 2000's. Currently they add a feature here and there, but have a large codebase. Over the years the team has shrunk by 70%.


[Yes, the "i have this friend is". It's me, attempting to humorously inject teenage high-school counselor shame into the mix]


Java, Vintage 2002


The application uses EJB 2.1, struts 1.x, DAO's etc with straight jdbc calls (mixture of stored procedures and prepared statements). No ORM. For caching they use a mixture of OpenSymphony OSCache and a home-grown cache layer.

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