Tool with bad coding for private use. Ignore it :) I hacked this together for a simple purpose: To control some old hardware i built years ago. Why it's on gitlab/github? Because i wrote it twice, the first time i lost the code (it was stored in a subdirectory of the Android SDK and an update deleted it), that was stupid and should not happen again... currently I need to set: export JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64 otherwise: [javac] error: Source option 5 is no longer supported. Use 6 or later. [javac] error: Target option 1.5 is no longer supported. Use 1.6 or later.