Javadoc tool should be modified so it does not print the keywords "synchronized"
or "native" in the method signatures.

This javadoc bug has a corollary doc bug 4078860, whereby the class and method descriptions should be beefed up, as follows.

It's important for the developer to know whether it's safe for multiple threads
to operate on an object concurrently, However, this synchronization can be
done either in public methods or in private methods, and the Java Platform API
spec should not declare one to be preferred over the other. A licensee should
be able to achieve synchronization internally if they wish.

Therefore, the general description of a class should mention whether the class is thread-safe or not. Individual method descriptions that are exceptions should mention that they are exceptions.