Review request:Updated JDK-8004728 Implement core reflection API for parameter reflection

[Zhong Yu]

On Wed, Dec 19, 2012 at 5:47 PM, Peter Levart <peter.levart at gmail.com> wrote:
>  279     public Parameter[] getParameters() {
>  280         // TODO: This may eventually need to be guarded by security
>  281         // mechanisms similar to those in Field, Method, etc.
>  282         Parameter[] raw = privateGetParameters();
>  283         Parameter[] out = new Parameter[raw.length];
>  284         // Need to copy the cached array to prevent users from messing
>  285         // with it
>  286         for (int i = 0; i < raw.length; i++) {
>  287             out[i] = new Parameter(raw[i]);
>  288         }
>  289         return out;
>  290     }
>
> together with the copy constructor in Parameter.java:
>
>   48     Parameter(Parameter p) {
>   49         this.name = p.name;
>   50         this.modifiers = p.modifiers;
>   51         this.executable = p.executable;
>   52         this.index = p.index;
>   53     }
>
> If I see right, then Parameter is an immutable object. You need not copy the
> Parameter objects when copying the array. Just do a shallow copy with
> Arrays.copy.

(off topic, sorry)
A question that I've been wondering : why do JDK methods return
arrays, instead of something like List? To avoid dependencies among
JDK packages? Then how about an interface java.lang.Sequence<T>? It
would be very useful for user applications as well.

Zhong Yu