エラーで動かない。誰か助けて。
linux mint 14
java version "1.7.0_15"
OpenJDK Runtime Environment (IcedTea7 2.3.7) (7u15-2.3.7-0ubuntu1~12.10.1)
OpenJDK Client VM (build 23.7-b01, mixed mode, sharing)

Exception in thread "main" java.awt.HeadlessException
at java.awt.GraphicsEnvironment.checkHeadless(GraphicsEnvironment.java:207)
at java.awt.Window.<init>(Window.java:535)
at java.awt.Frame.<init>(Frame.java:420)
at java.awt.Frame.<init>(Frame.java:385)
at javax.swing.SwingUtilities$SharedOwnerFrame.<init>(SwingUtilities.java:1755)
at javax.swing.SwingUtilities.getSharedOwnerFrame(SwingUtilities.java:1830)
at javax.swing.JOptionPane.getRootFrame(JOptionPane.java:1697)
at javax.swing.JOptionPane.showOptionDialog(JOptionPane.java:863)
at org.monazilla.v2c.V2CDirectorySP.showDialog(Unknown Source)
at org.monazilla.v2c.V2CDirectorySP.showPanel(Unknown Source)
at org.monazilla.v2c.V2CLauncher.getV2CDirectory(Unknown Source)
at org.monazilla.v2c.V2CApp.checkV2CDir(Unknown Source)
at org.monazilla.v2c.V2CApp.start(Unknown Source)
at org.monazilla.v2c.V2CApp.startApp(Unknown Source)
at V2C.main(Unknown Source)