Correctly building JAR files by copying src/jpos/res/*.* to the bin directory. This will be in 2.1.0-RC2.
I verified this and this is a valid problem. Will fix ASAP and make sure its in RC2.
If you want to use RC1 then just update the jpos1<x>.jar file with the src/jpos/res/jpos.properties file. You can do this with:
1)jar xvf jpos1<x>.jar jpos/res/jpos.properties
2) copy the src/jpos/res/jpos.properties to the created jpos/res directory from step above
3) jar uvf jpos1<x>.jar jpos/res/jpos.properties