Tomcat 5.0.3 JSP won't compile

Question

I've just installed Java SDK 1.5.0 and Tomcat 5.0.3 on what I hope will be my test server. But whenever it tries to compile a JSP I get this error
javac : target release 1.3 conflicts with default source release 1.5
So obviously the JSP compiler is trying to compile 1.5 source into a 1.3 class. Why it's trying to do this I've no idea, because there isn't any java in the JSP , as I removed it to create an "empty" JSP just to see if it was my coding causing the problem.
I've tried altering the JSP servlet by setting an <init-param> called "target" to "1.5" but that had no effect that I could see.
I could really use some help here.

Answer 1

If you want to use java 1.5, you are going to need to use Tomcat 5.5, which is basically Tomcat 5.0 but with JDK 1.5 support.
Why it's trying to do this I've no idea, because there isn't any java in the JSP All JSPs are translated into Servlets, which are Java classes, and then compiled before they are displayed the first time.
I've tried altering the JSP servlet by setting an <init-param> called "target" to "1.5" but that had no effect that I could see.There is a setting burried inside the Catalina startup scripts that set up how Jasper compiles the JSPs. I forget exactly where... but it doesn't matter. If you want to use JDK 1.5, you should go to Tomcat 5.5.