To compile:

  javac -cp C:/Progs/jaxen-1.1.2/jaxen-1.1.2.jar JaxenXPCheck.java

To run:

  java -cp "C:/Progs/jaxen-1.1.2/jaxen-1.1.2.jar;." JaxenXPCheck  [XPath expressions]

XPath expressions can be specified as arguments using quoted values. If you do not specify any, the repro will simply run two default expressions, where the only difference between the two is implicit vs. explicit casting.