RFR: 8263233: Update java.net and java.nio to use instanceof pattern variable

[Michael McMahon]

On Tue, 9 Mar 2021 12:32:38 GMT, Chris Hegarty <chegar at openjdk.org> wrote:

>> Hi,
>> 
>> Could someone please review my code for updating the code in the `java.net` and `java.nio` packages to make use of the `instanceof` pattern variable?
>> 
>> Kind regards,
>> Patrick
>
> src/java.base/share/classes/java/net/InterfaceAddress.java line 107:
> 
>> 105: 
>> 106:             if (Objects.equals(address, cmp.address) &&
>> 107:                 Objects.equals(broadcast, cmp.broadcast) &&
> 
> This could be simplified to:
> 
>     public boolean equals(Object obj) {
>         if (obj instanceof InterfaceAddress cmp
>               && Objects.equals(address, cmp.address)
>               && Objects.equals(broadcast, cmp.broadcast)
>               && maskLength == cmp.maskLength) {
>             return true;
>         }
>         return false;
>     }

or go one step further and replace the if statement just with the boolean expression.

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PR: https://git.openjdk.java.net/jdk/pull/2890