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From "Andrew Kujtan" <akuj...@evertz.com>
Subject Patching a jar in a wepabb
Date Wed, 23 Nov 2011 17:41:58 GMT
Hello Tomcat-users,

 

I'm running Tomcat 7.0.20. My webapp uses several 3rd party jars located
in WEB-INF/lib and I need to apply a series of patches to one of the
jars.  The patches are jar files that only have the modified class files
in it, so to apply it I need to add them to the classpath before the
third party jar. I.e.

Load patch3.jar, then patch2.jar, then patch1.jar, then 3rdparty.jar 

 

Reading the class loading docs it doesn't look like there is any
guarantee as to the order they are loaded or any way to specify the
order, is this correct?

 

If not, is there some other built in mechanism to do this? or am I
barking down the wrong tree altogether?

 

As it stands,  I think I'm just going to have to extract the class files
from each of the patch jars and insert the structure into my
WEB-INF/classes folder, as my understanding is that they are ahead of
the lib folder in the classpath. Is this a viable alternative should all
other avenues fail?

 

Regards,

Andrew Kujtan


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