-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 DG,
On 4/28/12 4:11 PM, dgchristen...@comcast.net wrote: > I have a small debugging/monitoring app written in Java/Swing that > I'd like to run inside Tomcat to help with debugging. You are asking for all kinds of pain, here. > The app is started by dynamically loading the monitoring class from > a webservice running under Tomcat. So, the GUI monitoring app loads classes from a webservice hosted by the webapp? Elsewhere in this thread, you said it had to run in the same JVM because it directly-accesses some of the objects. Those two statements seem to contradict one another. > The works in Windows (multiple flavors) but I'm having problems > getting this running on Ubuntu. The presence of the always-running GUI environment in Microsoft Windows is the reason stuff like this works there. > What I've tried so far: > > 1) First error I got was an Headless exception. Since the app is a > GUI app I can't run in headless mode. After searching around I > changed Tomcat's library path (via -Djava.library.path in > catalina.sh) to point to the client lib (ie. > .../java-6-sun-1.6.0.26/jre/lib/i386/client)> instead of the > server lib. You should be able to do this with the "-client" command-line parameter. I'm not sure why you would need this at all, except maybe - -server in your environment also implies "headless", which can also be changed using a command-line parameter. You shouldn't have to mess with the java.library.path. > 2) After changing the libs the next error was that DISPLAY wasn't > set. After setting DISPLAY=0.0 in catalina.sh I get "Can't connect > to X11 with DISPLAY=0.0" error. I've tried different values for > DISPLAY (e.g. localhost:0.0) and nothing makes a difference. I've > also tried fiddling around with the policies in case there's a > permissions error. See below for the call stack. As Mark says, you'll need to set this to your actual DISPLAY. When you're logged-in to your laptop, open an xterm and type "echo $DISPLAY". Use whatever value that is to attach to your X display. If Tomcat is running as a user other than you, then you might also have to do an "xhost +" as yourself to allow any client to connect to your X server. > The webservice app is a simple RESTEasy implementation. Since this > works in Windows I'm assuming (perhaps erroneously) that this can > work in Linux. Any help would be appreciated. I'm sure it *can* work in Linux, but the whole thing sounds insane to me. - -chris -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.17 (Darwin) Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk+epFEACgkQ9CaO5/Lv0PD5TQCfaHXWYeFPrDR2H5OMjOyFMHsI fjQAniXwykkxw5sMfWlCvI9n0zHYNRT8 =LHQA -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
