MostThe most common language targeting [[Java Virtual Machine]] by producing Java bytecode is [[Java|Java (programming language)]]. Originally only one compiler existed, the [[javac]] compiler from Sun Microsystems, which compiles [[Java source code]] to Java bytecode; but because all the specifications for Java bytecode are available, other parties have supplied compilers that produce Java bytecode. Examples other compilers include:
* [[Jikes]], compiles from the Java programming language to Java bytecode developed by [[IBM]], implemented in [[C++]]
* Espresso, compiles from the Java programming language to Java bytecode, only Java 1.0
