On the java.util.Date page in Groovy JDK:
All of the methods appear twice: once with no comment, and again with the javadoc comment.
Same case for http://groovy.codehaus.org/groovy-jdk/java/sql/Date.html at least.
I don't particularly like issues with multiple aspects but GROOVY-4469 covers this issue as well as some other aspects. Please see that issue for more details.
Not sure what the multiple aspects are but thanks for fixing this.