In practice, how often are you interested in it? C# has `Object.referenceEquals()` because you _may_ want this sometimes. But to have reference equality be the default for something like `==` is a design flaw. Not one that can be fixed now, of course, but it will continue to cause bugs for years to come.

Sometimes, it happens in core Java libraries themselves: https://bugs.openjdk.java.net/browse/JDK-8274779

https://github.com/openjdk/jdk/blob/722d639fad2e4fc6eb2aabd4...