Using the word java as part of a package name

[Mangalaganesh Balasubramanian]

Hi,

Is there any restriction on using java as part of my package name.

For eg,

com.test.java.impl

The JDK do not complain when i compile the code but i wanted to hear
what people do?

I was under the impression that the java as part of the package name
should only be used by the JDK libraries/classes.

Appreciate inputs

Manglu