This page captures some of the pitfalls encountered when writing Java 5 code and expecting it to work with Java 1.4.x after retroweaving with JBossRetro.

Note that these have been encountered with JBoss Retro 1.0.4.GA - future versions may not have these problems.

• New java.util.Timer constructors which take in Strings are translated to their unnamed equivalents.  This means that the name passed to the Timer constructor will not be assigned to the associated

  java.util.TimerThread

  .  See JBBUILD-350

• Anonymous implementation of abstract methods in enums causes Weaver to barf - don't use these.  See JBBUILD-332