Why is System.arraycopy not camelCased?

问题:

Java's standard libraries seem to use camelCase for method names. Native functions like nanoTime() are no exceptions.

If so, why is System.arraycopy not camelCased?

Is there something special about System.arraycopy?

回答1:

It's been in Java for before v1.0 was released - so my guess is that it predates the naming conventions, and it was missed in a sweep of the API when the naming conventions were decided.

(In other news, NullPointerException should be called NullReferenceException.)