The java.awt.Desktop.isDesktopSupported method hangs when ssh to "lapwai.sfbay" with DISPLAY set to "lapwai:0.0". lapwai may not support Desktop API (please check).

Regardless if the system supports Desktop API or not, the isDesktopSupported() should return true/false gracefully instead of hanging.

If DISPLAY is set to a valid system with desktop supported or an invalid value, it works fine.

Attached is the jstack -F -m output and here are the top few frames:

0xff2c12c0 __pollsys + 0x4
0xff262044 pselect + 0x1c8
0xff2623bc select + 0xa0
0xd6b9d1ec _XWaitForReadable + 0xdc
0xd6b9d01c _XRead + 0xec
0xd6b9a598 XOpenDisplay + 0x534
0xfbeb604c awt_init_Display + 0x290
0xfbeb63dc Java_sun_awt_X11GraphicsEnvironment_initDisplay + 0x2c
0xfc00e1e8 * sun.awt.X11GraphicsEnvironment.initDisplay(boolean)
bci:940023280 (Interpreted frame)
0xfc00e194 * sun.awt.X11GraphicsEnvironment.initDisplay(boolean) bci:0
(Interpreted frame)
0xfc005a30 * sun.awt.X11GraphicsEnvironment.access$100(boolean) bci:1
line:52 (Interpreted frame)
0xfc005a30 * sun.awt.X11GraphicsEnvironment$1.run() bci:72 line:155
(Interpreted frame)
0xfc00021c <StubRoutines>