ok... then you have the phex.jar files in the directory:
/usr/share/java/phex/lib

How do you start phex? From which directory do you run it?
Can you try from /usr/share/java/phex/ to use java -jar lib/phex.jar
and from /usr/share/java/phex/lib to use java -jar phex.jar
if it makes any difference?

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