On 27 Dec 2012, at 22:26, Remi Forax <fo...@univ-mlv.fr> wrote: > On 12/27/2012 10:41 PM, Chris Hegarty wrote: >> >>>> Method method = clazz.getMethod(DOM_LEVEL3_METHOD); >>>> is equivalent to >>>> Method method = clazz.getMethod(DOM_LEVEL3_METHOD, new Class<?>[0]); >>>> so you allocate an empty array each time you call getMethod. >>>> >>>> A better patch is to cast null to Class<?>[] (or Object[] for invoke) >>>> Method method = clazz.getMethod(DOM_LEVEL3_METHOD, (Class<?>[])null); >> >> Is this something that the compiler could do? Or is this "inefficiency" >> baked into spec, or serve another purpose? > > The compiler has to create an empty array if there is not enough parameter > from the spec (JLS7 15.12.2.4), but Class.getMethod() or Method.invoke() are > special because they specified that null is a valid argument equivalent to an > empty array.
Ok, thanks Remi. -Chris. > >> >> -Chris. > > Rémi >
