Packaging is causing problems, as you compiled for a modern Java.
Error: A JNI error has occurred, please check your installation and try again
Exception in thread "main" java.lang.UnsupportedClassVersionError: minced has been compiled by a more recent version of the Java Runtime (class file version 53.0), this version of the Java Runtime only recognizes class file versions up to 52.0
at java.lang.ClassLoader.defineClass1(Native Method)
Packaging is causing problems, as you compiled for a modern Java.
Last time you backward compatibled it?
I'm trying
javac -source 1.7
in brew. https://github.com/brewsci/homebrew-bio/pull/170