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development environment:eclipse jdk6.0 +Tomcat6.0.host only support Tomcat4.0 what

 
Greenhorn
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Hi all:
I have problem with version issue of tomcat.
My development environment is :eclipse jdk6.0 +ApachTomcat6.0.

and I have web host. I uploaded my war file. and got
javax.servlet.ServletException: Bad version number in .class file error.

later I find out that host only support Tomcat4.0+jdk1.6.

what can i do now to make my web application work fine on the web host? please advise.thanks
 
Master Rancher
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Tomcat 4 supports Servlet API 2.3 and JSP 1.2. You need to make sure that you're not using any servlet/JSP features introduced later. A starting point would be to compile your servlets against the Tomcat 4 libraries instead of the Tomcat 6 ones, and also to not use the JSP EL. A surer alternative would be to install Tomcat 4 and develop against that.
 
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