question: public static Class toClass ( ClassFile cf , ClassLoader loader , ProtectionDomain domain ) throws CannotCompileException { try { byte [ ] b = toBytecode ( cf ) ; Method method ; Object [ ] args ; if ( domain == null ) { method = defineClass1 ; args = new Object [ ] { cf . getName ( ) , b , new Integer ( 0 ) , new Integer ( b . length ) } ; } else { method = defineClass2 ; args = new Object [ ] { cf . getName ( ) , b , new Integer ( 0 ) , new Integer ( b . length ) , domain } ; } return toClass2 ( method , loader , args ) ; } catch ( RuntimeException e ) { throw e ; } catch ( java . lang . reflect . InvocationTargetException e ) { throw new CannotCompileException ( e . getTargetException ( ) ) ; } catch ( Exception e ) { throw new CannotCompileException ( e ) ; } }
target:  Loads a class file by a given class loader.