Upraveno pro OpenJDK verze: 1.7.0_147-icedtea / 21.0-b17.
$ java -version
java version "1.7.0_147-icedtea"
OpenJDK Runtime Environment (IcedTea7 2.0) (7~b147-2.0-0ubuntu0.11.10.1)
OpenJDK 64-Bit Server VM (build 21.0-b17, mixed mode)
2 X-COMMENT: Main-Class will be added automatically by build