substance新版及问题

新版地址：https://github.com/Insubstantial，目前是7.3版

http://stackoverflow.com/questions/3657538/substance-ui-undecorated-jdialog-jframe

frame.setUndecorated(true);
frame.setVisible(true);

This is a very old question, however for anyone who finds this post:

The problem with using,

JFrame.setDefaultLookAndFeelDecorated(false);

to fix the undecorated issue, is that it causes ALL of your dialogs to use the default look and feel when they are DECORATED. If you‘d just like one dialog to be undecorated without affecting all the other dialogs, call this on your dialog after setting it undecorated:

getRootPane().setWindowDecorationStyle(JRootPane.NONE);