I'm using Seam 2.0.0.GA on JBoss 4.2.1.GA and have discovered that when I include seam-pdf.jar (with jfreechart.jar and jcommon.jar) in the ear's lib directory, and then press ctrl+c to shutdown JBoss I get the following error:
13:16:45,817 ERROR [STDERR] Exception in thread "AWT-Windows" 13:16:45,818 ERROR [STDERR] java.lang.IllegalStateException: Shutdown in progress 13:16:45,819 ERROR [STDERR] at java.lang.ApplicationShutdownHooks.add(ApplicationShutdownHooks.java:39) 13:16:45,820 ERROR [STDERR] at java.lang.Runtime.addShutdownHook(Runtime.java:192) 13:16:45,821 ERROR [STDERR] at sun.awt.windows.WToolkit.run(WToolkit.java:276) 13:16:45,822 ERROR [STDERR] at java.lang.Thread.run(Thread.java:619)