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Editorial Team
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Asked: 2026-05-27T04:34:05+00:00

I am using the built in tomcat server in eclipse for my debugging and

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I am using the built in tomcat server in eclipse for my debugging and for some reason it stopped working.

I don’t know how to start debugging this.

The apache is running (when I go to my servers address (on local host) port 8080 I get an error that is clearly from the apachie server (its a 404).

but it just behaves as if I did not compile anything …

any ideas on what I should to to step by step debug this situation?

I guess this is because

C:\Users\myuser\Workspaces\projectName\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\webapps\projectName

is empty.

however C:\Users\myuser\Workspaces\projectName\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps

does seem to hold a complied version of my web app.

when I right click the server icon on the servers pane and go to properties – general,
there is a “location” value and a change location button.
clicking the button switches the location back and forth between [workspace metadata] and "/Servers/Tomcat v6.0 Server at localhost.server" – what doesthose two mean and which is the right one for me?

when I choose build all (after clearing “build automatically” nothing shows up on the console.

another thing I just noticed is that when starting the server I get the following warning:
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:projectName' did not find a matching property.

UPDATE:
after removing the project from the server (right click on project in the servers pane),
it started working again.

but one or two builds after it I got the following message:
Publishing failed with multiple errors
Could not delete C:/Users/epeleg/Workspaces/projectName/.metadata/.plugins/org.eclipse.wst.server.core/tmp1/wtpwebapps/projectName/WEB-INF/lib. May be locked by another process.
Could not delete C:/Users/epeleg/Workspaces/projectName/.metadata/.plugins/org.eclipse.wst.server.core/tmp1/wtpwebapps/projectName/WEB-INF. May be locked by another process.

and it went back into the same situation with 404’s on any request.
remove and re-add of the project did the trick again but I wander why could this be happening.

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1 Answer

  1. Editorial Team
    • delete the server,
    • while adding new server – click on “configure runtime environments”
    • edit the server specification:
      • point to the location of the server on the disk.
      • JRE to point to the Installed JRE (not to the Workbench default JRE).
    • Finish, OK, Finish.
    • Untick in menu : Project -> Build Automatically (this should not be selected)
    • Right click on project and build it, then run on server.

    This should do.

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