groovy 忘れた〜
しばらくやらないと、すぐ忘れてしまう...
groovy:000> System.getProperties().each {k,v -> if (k=~"ver") {print "${k}:\t${v}\n"} }
java.vm.version: 10.0-b22
java.runtime.version: 1.6.0_06-b02
java.class.version: 50.0
os.version: 2.6.22-14-generic
java.specification.version: 1.6
java.vm.specification.version: 1.0
java.version: 1.6.0_06