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From "Nigam,Shantul" <>
Subject RE: Having problems trying to setup debugging in IDE...
Date Thu, 06 Apr 2000 12:18:07 GMT
There were some changes to tomcat which make the code that IBM put out not
work with version 3.1. I am using JBuilder and to run Tomcat, I have to
include the libraries and use the following files to start and stop. These
were written by Ken Chan at Borland....


public class StartTomcat

  public StartTomcat()

  public static void main(String[] args)


public class StopTomcat

  public StopTomcat()

  public static void main(String[] args)
    org.apache.tomcat.startup.Tomcat.main(new String[]{"-stop"});

You will also need to include the following in your class path:

Good luck....


> -----Original Message-----
> From:	Timm, Sean []
> Sent:	Wednesday, April 05, 2000 10:31 PM
> To:	Tomcat-Dev (E-mail)
> Subject:	Having problems trying to setup debugging in IDE...
> For those of you who don't want to read the following long-winded
> explanation, I'm trying to figure out how to get it so I can debug
> servlets
> using my IDE and using the Tomcat servlet engine.  I tried following some
> instructions posted on IBM's site for VisualAge (I'm using VisualCafe),
> and
> I got to a certain point, but I'm getting errors returned from Tomcat
> code.
> If anyone can provide me with some tips on how to make this work, I would
> *greatly* appreciate it.  We've been using ServletExec, but we just found
> out we need some functionality that only Servlet API 2.2 provides, so
> we're
> trying to switch everything over to Tomcat now.  However, we need the
> functionality provided by ServletExecDebugger, and the IBM article seems
> to
> explain exactly how to do that (but it doesn't seem to be working for
> me...:( )
> I'm using VisualCafe 4.0 Expert Edition.  I've got a project set up with
> all
> of the directories from a fresh CVS build placed in the directory my
> project
> is located.  My main method calls Startup.main(args).  From here, I start
> having problems.  For my first problem, it was complaining that the Server
> tag was not declared.  I realized it was attempting to validate, but I
> noticed a comment in the code mentioned that server.xml shouldn't be
> validated yet, so I passed "-validate false" on the command-line.
> When I try and run it with those parameters, I get further.  It loads the
> configuration info from server.xml, but I get the following debug output:
> <l:ctx path="/examples" >Add context</l:ctx>
> <l:addContext path="/examples"  docBase="null" />
> <l:ctx path="/test" >Add context</l:ctx>
> <l:addContext path="/test"  docBase="null" />
> <l:ctx path="" >Add context</l:ctx>
> <l:addContext path=""  docBase="null" />
> <l:startEndpoint port="0"
> handler="org.apache.tomcat.service.http.HttpConnectionHandler" />
> <l:startEndpoint port="8080"
> handler="org.apache.tomcat.service.http.HttpConnectionHandler" />
> <l:startEndpoint port="8007"
> handler="org.apache.tomcat.service.connector.Ajp12ConnectionHandler" />
> Notice that docBase is null for some reason.  If I run Tomcat by itself
> using startup.bat, however, docBase shows up correctly.  I attempted
> various
> means of getting around this issue.  I can specify -docbase
> C:\MyProjectPath, but then I get a NullPointerException in
> Config.processArgs.  The problem code snippet is as follows:
> --------------------
>   String id =
>      (String)configElement.getAttribute(Constants.Attribute.Id);
>   .........
>   } else if (isArg(key) &&
>       (config.getElements().size() == 1 ||
>           (id.equals(getArg(Constants.Arg.ServiceId))))) {
>       configElement.addAttribute(key, getArg(key));
>   }
> --------------------
> id is assigned as null, so the call to id.equals throws an Exception.
> So I did some more digging, and I think that it was printing out using
> context.getDocumentBase, but it should be using context.getDocBase.
> I'm kind of stumped where to go from here.  I experimented with having
> setDocumentBase also update setDocBase, but that didn't seem to help any.
> When I try and go to http://localhost:8080/, I receive a hit because I get
> an error in the debug output as follows:
> --------
> <l:tc>Error reading request null</l:tc>
> --------
> Once again, if anyone can assist me, I'd greatly appreciate it.  I've been
> trying to dig through the FAQs, documentation, and mailing archives, but I
> have yet to come up with anything substantial that can help.  We've got
> the
> Tomcat server up and running...just need to get it so we can debug now!
> Thanks in advance,
> Sean T.
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