What is JKoala?

JKoala was an open source project aimed at porting AWT / Swing under Mac OS X / Cocoa.
Since Oracle and Apple announced OpenJDK Project for Mac OS X and Java SE 6 support for Mac OS X Lion on November 12, 2010, JKoala doesn't seem to be required anymore and won't go further.

Emmanuel Puybaret, JKoala leader at eTeks