should be using JavaSE-1.6 VM, and .classpath, codegen.targetPlatform, compliance and source should also all be 1.6
source.uidesigner.jar = src/
output.uidesigner.jar = bin/
bin.includes = plugin.xml,\
uidesigner.jar,\
META-INF/MANIFEST.MF,\
plugin.properties,\
icons/