Why does Tomcat try to use the cache when compilation failed?

Posted by etheros on Server Fault See other posts from Server Fault or by etheros
Published on 2010-02-16T17:33:56Z Indexed on 2010/03/22 18:01 UTC
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For some reason, it appears Tomcat is trying to hit its compilation cache when compilation failed.

For example, if I create a JSP containing nothing but Hello, <%=world%>!, predictably, I get an error: org.apache.jasper.JasperException: Unable to compile class for JSP. Subsequent requests however alternate between this and org.apache.jasper.JasperException: org.apache.jasper.JasperException: Unable to load class for JSP.

Further, if I create a JSP containing Hello!, it of course works just fine. If I modify it contain Hello, <%=name%>!, the response alternates between the previously-mentioned compilation error, and the cached Hello!.

What's going on?

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