Legal question to include code like com.sun.tools.javac.Main

[Chia-Hung Lin]

Hi,

I have a naive question regarding to include the methods like
Main.compile in com.sun package in the project source code.

For instance, in our project like hama if there is a source file that
makes use of com.sun.tools.javac.Main to runtime compile java sources
into classes. Is it legal to release or include that source with
project?

Thanks