Unable to add any directory into the watched directory chain in virgo tomcat server 3.0.3

Recently I had a requirement where I had to add a directory into the watched directory chain in virgo tomcat server (VTS 3.0.3). Requirement was to check if some jars are present in a particular directory, and if jars are present then add the directory programmatically (using shell script) in the watched directory chain.
So, I created a shell script which looks like below:

if [ -f /usr/local/vts/external_jars/util* ] ; then

  echo "Found the util jar under /usr/local/vts/external_jars"

sed  -i '

  /usr.watchDirectory=repository\/usr/ a\

external_jars.type=watched \

external_jars.watchDirectory=external_jars

       ' $VTS_HOME/config/org.eclipse.virgo.repository.properties

sed -i "s/usr,/usr,external_jars,/" $VTS_HOME/config/org.eclipse.virgo.repository.properties

fi

When I ran the script it worked all fine, and the configuration file also got updated, but when I restarted my virgo server it did not pick my "external_jars" directory into the chain of watched directory.
I compared the changes with other watched directories but could not find any clue.

Then after struggling a lot I realized that there is a extra space after the value of property "external_jars.type". And as soon as I removed the extra space, it worked.

Corrected script is:

if [ -f /usr/local/vts/external_jars/util* ] ; then

  echo "Found the util jar under /usr/local/vts/external_jars"

sed  -i '

  /usr.watchDirectory=repository\/usr/ a\

external_jars.type=watched\

external_jars.watchDirectory=external_jars

       ' $VTS_HOME/config/org.eclipse.virgo.repository.properties

sed -i "s/usr,/usr,external_jars,/" $VTS_HOME/config/org.eclipse.virgo.repository.properties

fi

Just thought of sharing this info, so I blogged it.