I had previously mentioned JDocs on my blog. JSourcery provides a similar service. The site currently comprises the Javadocs for several common APIs (such as the Apache Commons APIs), as well as the actual J2SE Javadocs (although I suspect it is only a matter of time before SUN will force JSourcery to take these down, just like JDocs did)....
I recently came across XWiki, a relatively new, Java-based Wiki. For anybody looking to deploy a new Wiki, this looks like a great option. It has an extensive feature list and seems to combine the best features of other Wiki engines as well as add a few unique Features of its own, for example scripting using Groovy or Velocity, PDF export, and others....
I was looking for an API or (preferably) custom tag library to handle pagination and sorting of lists in JSP, when I came across the display tag library, and I have to admit that I'm very impressed. This tag library is surprisingly easy and intuitive to use, while at the same time being extremely powerful, flexible, and configurable....
SUN has recently created a new Portlet Community website. It looks like it contains some interesting articles and links.
In the last 4 months or so, I have made several posts on Eclipse, which I had started to use at my previous job. Overall, my experience with Eclipse up to now had been fairly positive, with the exception of some minor quirks. Unfortunately, this has changed significantly in the last two weeks, at my new job. At my previous job, our applications were built on top of J2EE, but we did not use JSP. Instead, our Struts actions generated XML output which was then rendered into HTML using XSLT templates. Therefore, I never even realized that Eclipse does not support JSP out of the box. It does not even provide syntax highlighting!...