Hi all,
It have been a long time since I read any post... but I can't ignore someone in
trouble.
I had a similar problem using java.AWT with linux...
It needs a graphics system server, like windows or X11 running in your server.
But as X11 was too heavy for my system, my workaround was to start Xvfb (X virtual
frame buffer). Google it to
get a Solaris Xvfb...
take a look also at
http://developer.java.sun.com/developer/bugParade/bugs/4281163.html
Regards,
miagi
On Sun, 23 Mar 2003 12:15:04 -0800, Micael <[EMAIL PROTECTED]> escreveu :
> De: Micael <[EMAIL PROTECTED]>
> Data: Sun, 23 Mar 2003 12:15:04 -0800
> Para: "Tomcat Users List" <[EMAIL PROTECTED]>
> Assunto: Re: Can't connect to X11 window server using '0:0' as the value of the
> display and now
java.awt.HeadlessException
>
> The material George gave you is really good. Do you have X11 installed,
> even if not running? I am not a Solaris guy, so don't know what that may
> mean in that context.
>
> At 09:09 AM 3/23/03 +0000, you wrote:
>
> >Thanks Micael. Tried the same thing and got the same results.
> >Looks like Catalina/Tomcat is indeed using headless mode but
> >it's not working with my Java (1.4) and operating system (SunOS 5.6).
> >I'm presuming you're using this to create/generate graphics in a
> >servlet ? Do you mind posting sample Java that creates a
> >Toolkit or MediaTracker (and which therefore requires headless
> >mode) ? I can't fathom what's wrong with mine. Mine works fine
> >when running on Win2K and Tomcat, but now dying on Sun.
> >Thanks for the help,
> >Stephen.
> >
> > Micael <[EMAIL PROTECTED]> wrote:
> >I added the headless flag to catalina.sh as follows:
> >
> ># ----- Execute The Requested Command
> >-----------------------------------------
> >
> >echo "Using CATALINA_BASE: $CATALINA_BASE"
> >echo "Using CATALINA_HOME: $CATALINA_HOME"
> >echo "Using CATALINA_TMPDIR: $CATALINA_TMPDIR"
> >echo "Using JAVA_HOME: $JAVA_HOME"
> >
> >if [ "$1" = "jpda" ] ; then
> >if [ -z "$JPDA_ADDRESS" ]; then
> >JPDA_ADDRESS="8000"
> >fi
> >if [ -z "$JDPA_OPTS" ]; then
> >JPDA_OPTS="-Xdebug
> >-Xrunjdwp:transport=dt_socket,address=$JPDA_ADDRESS,server=y,suspend=n"
> >fi
> >CATALINA_OPTS="$CATALINA_OPTS $JPDA_OPTS"
> >shift
> >fi
> >CATALINA_OPTS="-Djava.awt.headless=true"
> >
> >This worked fine.
> >
> >
> >At 08:15 AM 3/23/03 +0000, you wrote:
> >
> > > > On Thu, 2003-03-20 at 20:36, Micael wrote:
> > > > For me the easiest thing was just to provide the right command line
> > > options
> > > > (java.awt.headless=true) when I started up Tomcat.
> > >May I ask, how you did this ? I've also encountered
> > >JNI_OnLoad errors runing on Solaris due, I suspect, the lack of
> > >XWindows on my server. I tried adding the headless flag to
> > >my catalina.sh script as follows ~
> > >elif [ "$1" = "start" ] ; then
> > > shift
> > > touch "$CATALINA_BASE"/logs/catalina.out
> > > if [ "$1" = "-security" ] ; then
> > > echo "Using Security Manager"
> > > shift
> > > "$_RUNJAVA" $JAVA_OPTS $CATALINA_OPTS \
> > > -Djava.endorsed.dirs="$JAVA_ENDORSED_DIRS" -classpath "$CLASSPATH" \
> > > -Djava.security.manager \
> > > -Djava.security.policy=="$CATALINA_BASE"/conf/catalina.policy \
> > > -Dcatalina.base="$CATALINA_BASE" \
> > > -Dcatalina.home="$CATALINA_HOME" \
> > > -Djava.io.tmpdir="$CATALINA_TMPDIR" \
> > > -Djava.awt.headless=true \
> > > org.apache.catalina.startup.Bootstrap "$@" start \
> > > >> "$CATALINA_BASE"/logs/catalina.out 2>&1 &
> > > else
> > > "$_RUNJAVA" $JAVA_OPTS $CATALINA_OPTS \
> > > -Djava.endorsed.dirs="$JAVA_ENDORSED_DIRS" -classpath "$CLASSPATH" \
> > > -Dcatalina.base="$CATALINA_BASE" \
> > > -Dcatalina.home="$CATALINA_HOME" \
> > > -Djava.io.tmpdir="$CATALINA_TMPDIR" \
> > > -Djava.awt.headless=true \
> > > org.apache.catalina.startup.Bootstrap "$@" start \
> > > >> "$CATALINA_BASE"/logs/catalina.out 2>&1 &
> > > fi
> > >But that just resulted in the following error,
> > >java.awt.HeadlessException
> > > at
> > > java.awt.GraphicsEnvironment.checkHeadless(GraphicsEnvironment.java:121)
> > > at java.awt.Window.(Window.java:266)
> > > at java.awt.Frame.(Frame.java:398)
> > > at java.awt.Frame.(Frame.java:363)
> > > at ImageUtils.loadImage(Unknown Source)
> > >
> > >where the loadImage() function is simply supposed to load an image,
> > > public static Image loadImage(String fileName) {
> > > Image image = Toolkit.getDefaultToolkit().getImage(fileName);
> > > MediaTracker mediaTracker = new MediaTracker(new Frame());
> > > mediaTracker.addImage(image, 0);
> > > try {
> > > mediaTracker.waitForID(0);
> > > }
> > > catch (InterruptedException ie) {
> > > //
> > > }
> > > return image;
> > > }
> > >Any ideas/help would be great.
> > >Stephen.
> > >ps. I also tried PJA but couldn't get that to work either :(
> > >
> > >
> > >
> > >
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