Is there a Java library to generate class files from an AST?

Question

This page describes how I can use the code generator in javac to generate code given that I can build an AST (using a separate parser which I wrote). The technique involves edit

Answer 1

Another cool framework is ASM, a bytecode analysis and manipulation framework.

In case you do not want to use a framework, as of now (2014), it is not possible to generate bytecode from a tree using the arbitrary representations of com.sun.source.tree.* as said here.