A very interesting thing happened a few days ago. After searching for a solution to an error message I was getting when running Apache Tomcat, I came across the following post:
And I found the solution to my problem in the comment #5. By accident, I saw the author of the comment and, to my surprise, I had been the author in 2006! Yes, that's right. I had absolutely no memory of writing this comment. And this solution is mentioned in many other places after I added this comment there.
Actually, I ended up using Tomcat 6 due to the nuisance of having to change a lot of stuff in my project at Amazon, but this finding was funny anyway.