Eclipse + Tomcat plugin: problem with automatic class reloading

From: Grainne Coghlan (gcoghlan_at_imsmaxims.com)
Date: 12/23/03

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    Date: 23 Dec 2003 03:45:14 -0800

    Hi all,
    I am having a problem using the DevLoader that comes with the eclipse
    plugin for Tomcat from sysdeo.
    It is loading classes okay from locations.
    But it is not reloading them when they change.
    The reloading works okay for a class that is WEB-INF/classes.

    Here are the details:
    Versions:
    eclipse version 2.1.1
    eclipse Tomcat plugin V 2.2.1
    Tomcat version 4.1.29
    JDK 1.3.1_04

    I have extracted the DevLoader zip into [Tomcat Home]/server/classes
    directory.
    The tomcat server is using this DevLoader to load the classes.
    I set the debug level in my web-app Context in conf/server.xml for the
    loader to 4.
    (<Loader className="org.apache.catalina.loader.DevLoader"
    reloadable="true" debug="4"/> )
    Logging is redirected to the console.

    I can see output in the console that shows that it added my classes
    location:
    [DevLoader] added file:/C:/dev/workspace/Test/classes/

    This is the location to find a class ims.test.TestServlet.
    And it is able to find this class:

    WebappClassLoader: loadClass(ims.test.TestServlet, false)
    WebappClassLoader: Searching local repositories
    WebappClassLoader: findClass(ims.test.TestServlet)
    WebappClassLoader: findClassInternal(ims.test.TestServlet)
    WebappClassLoader: loadClass(javax.servlet.http.HttpServlet, false)
    WebappClassLoader: Delegating to parent classloader
    WebappClassLoader: Loading class from parent
    WebappClassLoader: Returning class class ims.test.TestServlet
    WebappClassLoader: Loaded by WebappClassLoader
      available:
      delegate: false
      repositories:
        /WEB-INF/classes/
      required:

    I find it strange that my location
    (file:/C:/dev/workspace/Test/classes/) is under the repositories.

    If change the code (recompile) ims.test.TestServlet it is NOT
    reloaded.
    However, if I have a class that is to be found in WEB-INF/classes
    e.g. I have a different class ims.TestServlet that is in
    WEB-INF/classes/

    WebappClassLoader: loadClass(ims.TestServlet, false)
    WebappClassLoader: Searching local repositories
    WebappClassLoader: findClass(ims.TestServlet)
    WebappClassLoader: findClassInternal(ims.TestServlet)
    WebappClassLoader: Returning class class ims.TestServlet
    WebappClassLoader: Loaded by WebappClassLoader
      available:
      delegate: false
      repositories:
        /WEB-INF/classes/
      required:

    Then if I change ims.TestServlet it IS reloaded.

    WebappClassLoader: Resource '/WEB-INF/classes/ims/TestServlet.class'
    was modified; Date is now: Tue Dec 23 10:33:32 GMT 2003 Was: Tue Dec
    23 09:28:57 GMT 2003

    thank you for any help you can give,
    and best wishes for Christmas + the New Year,
    Grainne Coghlan

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