[bobash]

eclipse 2.1.2
myeclipse 2.6.4
tomcat 5.0.16

User Guide, Web Development Tutorial part 2, Step 5:
Once the breakpoint is set, the debugger stops at the top of the jsp page instead of at the line with the breakpoint.

It works with tomcat 5.0.14.

[Scott Anderson]

I believe this is a known problem with the latest release of Tomcat due to changes in their launch model. It should be resolved in the upcoming 2.7 release. Sorry for the inconvenience.

–Scott
MyEclipse Support

[Scott Anderson]

We did some research and the problem is a bug in the SMAP generated by the latest version of the Tomcat beta. We’ve submitted the source mapping problem as a bug against Tomcat here:
http://nagoya.apache.org/bugzilla/show_bug.cgi?id=25263

–Scott
MyEclipse Support

[Scott Anderson]

The Apache folks have followed up in the bug thread and they’re working on a fix for the next Tomcat release. More importantly though, they’ve given us a workaround. You need to modify your <TomcatConfigDir>/conf/web.xml file to turn on the mappedfile attribute in the JSP servlet. When you do that, it should basically look like this:

    <servlet>
        <servlet-name>jsp</servlet-name>
        <servlet-class>org.apache.jasper.servlet.JspServlet</servlet-class>
        <init-param>
            <param-name>fork</param-name>
            <param-value>false</param-value>
        </init-param>
        <init-param>
            <param-name>xpoweredBy</param-name>
            <param-value>false</param-value>
        </init-param>
        <init-param>
            <param-name>mappedfile</param-name>
            <param-value>true</param-value>
        </init-param>
        <load-on-startup>3</load-on-startup>
    </servlet>

Then, clear out all the working files under the directory <TomcatConfigDir>/work/Catalina/localhost/<your-web-project> to force Tomcat to recompile all your JSP’s the next time they’re run. Once Tomcat is restarted and your pages are hit again the breakpoints should now map to the JSP source code properly.

–Scott
MyEclipse Support

[mrzeld]

was this issued resolved (so you dont have to add to your web.xml the snippet above) with ME 2.7RC2 and tomcat 5.0.18?

[Riyad Kalla]

mrzeld,
Yes I believe it was as I’ve suggested to a few people to upgrade after complaining about this bug, and never gotten a reply back… which I can only assume means its worked.

[Riyad Kalla]

I am closing this because it was a bug in Tomcat that was fixed a while ago.

[Author]

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