Migrated from sourceforge: https://sourceforge.net/p/p6spy/bugs/4/
When the properties file is in a jar, it is not read.
It is beacause P6SpyProperties.java looks for
properties in a classpath directory. I suggest to use
Class.getResourceAsStream() instead which works even if
the file is in a jar o zip.
Issue #88: Error when spy.properties is in a jar