private static Boolean methodExists ( Class clazz , String methodName , Type [ ] args , Type returnType ) { try { Class < ? > [ ] _args = new Class [ args . length ] ; for ( int i = 0 ; i < _args . length ; i ++ ) { _args [ i ] = Types . toClass ( args [ i ] ) ; } Class < ? > rtn = Types . toClass ( returnType ) ; try { java . lang . reflect . Method m = clazz . getMethod ( methodName , _args ) ; return m . getReturnType ( ) == rtn ; } catch ( Exception e ) { return false ; } } catch ( Exception e ) { SystemOut . printDate ( e ) ; return null ; } }
checks if a method exists