Re: [Wrapper-user] Problem with ServiceWrapper 3.0.5 and Tomcat

[Leif M. <le...@ta...>]

Stefan,
You say that your servlet makes use of a JNI native library to operate?  
Are you sure
that the library is correctly located on your library path.  When you 
run Tomcat
standalone the library path will default to looking on the PATH.   But 
when using the
Wrapper, you need to specifically specify the full library path in the 
wrapper.conf file.

This is not anything that has changed between 2.2.4 and 3.0.5 however.

Try setting the wrapper.debug=true property.   This will let you see the 
full library path
being used on startup and it may give some clues as to why exactly the 
application is
shutting down.

Is the problem servlet something that you have source for?  My guess is 
that it is calling
System.exit when it fails to locate its native library.  Because of your 
comment on
load_on_startup, I assume that this is happening in the servlet's init 
method.

Cheers,
Leif


sou...@m4... wrote:

> Hi,
>
> I recently used this smart tool (ServiceWrapper 2.2.4) for starting 
> Tomcat and everything worked fine (SimpleApp). Now I updated to 3.0.5 
> and am confronted with the strange problem that Tomcat shuts down 
> immediately after starting. I am clueless because no log contains any 
> error - it seems to stop right after a certain instruction.
>
> Recently I tracked it down to be a problem with a certain dynamic 
> servlet which is the main part of a server - client architecture -  
> therefore I cannot go on without using it ... Tomcat itself will start 
> without any problem if I do use its startup.bat.
> Also using the wrapper and Tomcat as a simple Webserver works ok but 
> in this case when I try to load the servlet on startup time Tomcat and 
> the wrapper also shut down immediately. If I leave out the 
> load-on-startup it shuts down right after the first call to the 
> servlets address.
>
> Additionally let me add that I am using another native dll in my 
> servlet for storing data. Could that cause any problems?
>
> Any help will be appreciated,
>  Stefan Dingfelder