Sun Microsystems recommends that users either migrate their applications to the latest update of the Java Standard Edition (Java SE JRE 6 Update 17) or make use of the "Java SE Support for Business" service, which offers guaranteed support for old Java versions for up to 15 years.
http://java.sun.com/products/archive/eol.policy.html


The final update release is available: JDK 5.0 Update 22
http://java.sun.com/javase/downloads/index_jdk5.jsp