I got my 310-252A assignment and the target platform requirement surprised me, it requires
Java 1.4

. I passed my
SCJP for Java 6 and even Java 1.5 is in EOL

. Where to find Java 1.4 and download then:banghead:.
Target Platform and Execution
Throughout this exercise, you must use exclusively the Java 2 platform. You may develop your code using any implementation of the Java 2 platform, but the submission that you return must have been tested and shown to work under a production (not development) version of the Sun Microsystems' Java 2 platform and that platform must not have been superseded by a new production version for more than 18 months by the time you make your submission.