- Rename 'Validation' to what it actually is: a 'ValidationRemark'.
- No need to check for null
- Don't use exclamation marks in error messages or warnings
- Don't use line comments for methods - use Javadoc comments
- Don't document private methods if the documentation just copies the method name
- Don't document parameter names if there is not actual documentation
- Don't use <p> and other HTML tags within Javadoc comments unless really necessary
- Don't use all uppercase (caps) method names
- Don't use empty lines (just '*') within Javadoc comments, except where necessary