Tomcat 5.5.1リリース

いつの間にかTomcat5.5.1がリリースされていた。

Tomcat 5.5 is designed to run on J2SE 5.0 and later, and requires
configuration to run on J2SE 1.4. Make sure to read the "RUNNING.txt"
file in this directory if you are using J2SE 1.4.

In addition, Tomcat 5.5 uses the Eclipse JDT Java compiler for compiling
JSP pages. This means you no longer need to have the complete
Java Development Kit (JDK) to run Tomcat, but a Java Runtime Environment
(JRE) is sufficient. The Eclipse JDT Java compiler is bundled with the
binary Tomcat distributions. Tomcat can also be configured to use the
compiler from the JDK to compile JSPs, or any other Java compiler supported
by Apache Ant.

というわけでJ2SE 5.0ベースでEclipse JDTをJSPのコンパイラに使うようになったわけですな。とりあえず様子見です。