question: public Object invokeMethod ( Object thiz , String name , Object ... args ) throws ScriptException , NoSuchMethodException { if ( ! ( thiz instanceof bsh . This ) ) throw new ScriptException ( "Illegal objec type: " + thiz . getClass ( ) ) ; bsh . This bshObject = ( bsh . This ) thiz ; try { return bshObject . invokeMethod ( name , args ) ; } catch ( ParseException e ) { throw new ScriptException ( e . toString ( ) , e . getErrorSourceFile ( ) , e . getErrorLineNumber ( ) ) ; } catch ( TargetError e ) { ScriptException se = new ScriptException ( e . toString ( ) , e . getErrorSourceFile ( ) , e . getErrorLineNumber ( ) ) ; se . initCause ( e . getTarget ( ) ) ; throw se ; } catch ( EvalError e ) { throw new ScriptException ( e . toString ( ) , e . getErrorSourceFile ( ) , e . getErrorLineNumber ( ) ) ; } catch ( InterpreterError e ) { throw new ScriptException ( e . toString ( ) ) ; } }
target:  Calls a procedure compiled during a previous script execution, which is retained in the state of the <code>ScriptEngine<code>.