Using equal sign for HttpStatus.BAD_REQUEST not working

Question

I'm just wondering why using == to check equality of HttpStatus.BAD_REQUEST is not working:

HttpStatus httpStatusCode ...;
if (httpStatusCode == HttpStatus.BAD_REQUEST) {}

I got it working by using equals method:

if (httpStatusCode.equals(HttpStatus.BAD_REQUEST)) {}

But, HttpStatus.OK is working as in:

if (httpStatusCode == HttpStatus.OK) {}

I discovered it when I had this code:

if (httpStatusCode == HttpStatus.OK) {
...
} else if (httpStatusCode == HttpStatus.BAD_REQUEST ) {
...
} else {
...
}

Assumming httpStatusCode is HttpStatus.BAD_REQUEST, instead of going through else if block, it went to else block. But, when I changed == to .equals(), it worked.

I'm using Spring Web 4.3.6.RELEASE. Is there any explanation on this? Thank you

Answer 1

Use value() method:

httpStatusCode.value() == HttpStatus.OK.value()

If you will look inside the HttpStatus.java file, you can see it is an enum and it has a value method which return an int value of the HttpStatus, so you can use it to compare your Status codes. And .equals works as it checks the enums value as == checks reference.