Tomcat and java SDK problem

Question

I am trying to create a new dynamic web project in eclipse (in ubuntu). When I point to Target Runtime as Tomcat V 7.0 , I get the below warning

runtime "Apache Tomcat v7.0" is invalid. Tomcat requires a Java SDK in order to
compile JSP files. Ensure that the JRE preference settings point to an SDK.

But the installed JREs already show java-6-openjdk . Am I missing something?

Also when I ignored that and started Tomcat anyway , it started successfully in port 8080 . But when I said http://localhost:8080 , it threw 404 resource not found error .

Do you see any problems here?

Answer 1

You maybe didn't install the JDK or didn't appoint the Tomcat server to it ..

so try to make sure that you installed the JDK not just JRE..

but If you are already installed the JDK you have to make sure to make preference settings point to the SDK ..

so in eclipse go to Window >> Preferences >> Server >> Tomcat >> Tomcat 7.X >> Edit >> and point it to JDK not JRE ..

if you don't find "Tomcat" is Servers you may find "Installed Runtimes" >> Edit >> and point it to JDK not JRE ..