Resolve 2 NullPointerExceptions that happen when attempting to get the mass of a molecule with a pseudo atom.

Signed-off-by: John May <john.wilkinsonmay@gmail.com>
Formatting the formula module (mvn java-formatter:format).
throw away
Revert "throw away"

This reverts commit 8b9da8e2a9903861d4a0dd250592085e85fc2334.
Merge branch 'master' of https://github.com/cdk/cdk