Add war file to java.class.path in JBoss environment

Question

I'm using a library that scans my classpath in order to find the implementation for my interface (this might seem strange and I know there are better approaches but I cannot change this). When I'm using this library in a standalone application it works since

java.class.path

returns the classpath my jar file is on. Now I'm trying to use this library in a web project deployed to a Jboss 7. When asking the classpath in this case this is returned:

java.class.path /Applications/jboss-as-7.1.1.Final/jboss-modules.jar

I do not really know how I can add something to the java.class.path env variable. Any ideas how i can add something to this variable or a better approach towards this problem? An add() function exists in this lib where I can add a jar file that needs to be scanned. So if someone can tell me how I can get the location of this war file, that would help as well ;).

This is the library I'm talking about: http://software.clapper.org/javautil/

Note: the java.class.path is used inside this library and i do not really want to change anything to said lib.

Thanks in advance.

Answer 1

There is no portable way to do classpath scanning without being able to control the class loader. Better options to achieve this are:

• use ServiceLoader and META-INF/services
• use CDI and register the implementations as CDI beans