Erinaceus is an esoteric two dimensional programming language which uses bitmaps as sourcecode. It is turing complete and able to modify itself. It has been created with the goal to create a language that can be hidden in pictures easily.
TransJVM is a Java package to assist compiler writers targeting the Java Virtual Machine. It provides a simple logical interface for creating JVM classes, expressed in terms of Methods, Fields, Statements and Expressions. JVM details are hidden.