Sun have a good article on Getting Started with Java Management Extensions (JMX) on their site, giving a good overview of the technology, how it is architected, how it is used. There is also a brief section giving an overview of the JMX implementation in J2SE 1.5
Summary of the EJB3.0 (JSR220) spec
I’ve summarized the EJB3.0 spec (JSR220) into a shorter condensed version, covering most of the major areas that are going to be changing. You can read the summary here.
Using Lucene on TheServerSide.com
TheServerSide.com have a good article explaining how they implemented Lucene for their search engine on their site, include code examples.
I’ve been meaning to look into using Lucene on my own site for some time now, so maybe I’ll have a good read through this article and get something going on my own site 🙂
Eclipse 3.1.0 M4 includes J2SE1.5 support
Eclipse 3.1.0 build M4 (released in December 2004) now contains full support for all J2SE 1.5 new language features. This is the first Eclipse build to include support for 1.5.
Further details in the 3.1 M4 release notes