org.jruby.compiler
Interfaces 
ArgumentsCallback
ArrayCallback
BranchCallback
CacheCompiler
CompilerCallback
InvocationCompiler
JITCompilerMBean
MethodCompiler
ScriptCompiler
VariableCompiler
Classes 
ASTCompiler
ASTInspector
JITCompiler
YARVNodesCompiler
Exceptions 
NotCompilableException