RFR 9: 8138963 : java.lang.Objects new method to default to non-null (original) (raw)
Paul Benedict pbenedict at apache.org
Tue Oct 6 13:56:59 UTC 2015
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It's quite possible for the second argument to be null. Is that your intention? I am not sure it makes sense, but it's not harmful either. I recommend you can either (1) explicitly document that's a possibility and this method could still return null or (2) prevent it by calling requireNonNull.
Cheers, Paul
On Tue, Oct 6, 2015 at 8:43 AM, Roger Riggs <Roger.Riggs at oracle.com> wrote:
Java.lang.Objects contains a number of convenience methods to make it easier to handle references that are null. For example, toString(obj, nullDefault),
A new method is proposed to return the reference or a default value if the reference is null. static T nonNull(T obj, T nullDefault); Alternatives to the method name include nonNullOrElse ( using the java.util.Optional name pattern) or nonNullOrDefault Please review and comment. Webrev: http://cr.openjdk.java.net/~rriggs/webrev-object-non-null/ Issue: https://bugs.openjdk.java.net/browse/JDK-8138963 Thanks, Roger
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