Thanks Remi. I changed it: http://cr.openjdk.java.net/~khazra/7160242/webrev.02/

Can you also point out what advantage using Object.requireNonNull has over simply doing a key == null check as I was doing before?

Thanks,
Kurchi

On 4/24/2012 3:07 PM, Rémi Forax wrote:
On 04/24/2012 11:49 PM, Kurchi Hazra wrote:
Hi,

Updated webrev:
http://cr.openjdk.java.net/~khazra/7160242/webrev.01/

Thanks,
Kurchi

Hi Kurchi,
Object.requireNonNull() return the first argument,
so there is no need to store it again in key.
So instead of

key = Objects.requireNonNull(key, "Specified key cannot be null");

you can just write:

Objects.requireNonNull(key, "Specified key cannot be null");

or if you want to reuse the return value (it's less readable in my opinion)
you can write :

file.removeKeyFromNode(path,
   Objects.requireNonNull(key, "Specified key cannot be null"));

but usually, this feature is used in constructor,
something like this :

class Person {
  ...
  public Person(String name) {
    this.name = Objects.requireNonNull(name);
  }
}

cheers,
Rémi


On 4/21/2012 4:23 AM, Rémi Forax wrote:
On 04/21/2012 09:52 AM, Alan Bateman wrote:
On 20/04/2012 20:09, Kurchi Subhra Hazra wrote:
Hi,

This change inserts a null check for the key being passed to Preferences.remove() on Mac, so that the method throws a NullPointerException when key is null (according to its specification).

Bug: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7160242
Webrev: http://cr.openjdk.java.net/~khazra/7160242/webrev.00/ Thanks, Kurchi
Kurchi - would you be able to add a test to test/java/util/prefs so that we have coverage for this case?

-Alan.

Also you can use Objects.requireNonNull()
http://docs.oracle.com/javase/7/docs/api/java/util/Objects.html#requireNonNull%28T,%20java.lang.String%29

Rémi




--
-Kurchi

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