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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