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Why Java does not use default value which it should?

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It looks that Java does not follow its own standards!

Why do I get compile error in my function when do this:


public byte[] getBytes(){
    byte[] bytes;
    return bytes;
JLS (Java Language Specifation) says: "For all reference types (§4.3), the default value is null." JLS

Why can not I simply get null by return statement?

If you read more carefully the same paragraph you can find this: "A local variable (§14.4, §14.13) must be explicitly given a value before it is used"

So if you declare (even without initialization) the same variable on a class level, outside of function it will be Ok!

Look here - it works:


public class MyClass{
    byte[] bytes;

    public byte[] getBytes(){
        return bytes;
No compile error...

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