Minor tweak.

git-svn-id: http://svn.igniterealtime.org/svn/repos/openfire/branches@8220 b35dd754-fafc-0310-a699-88a17e54d16e

3_3_1_branch/src/bin/openfire.sh

@@ -20,6 +20,7 @@ case "`uname`" in
            fi
            ;;
   Linux*) linux=true
+          if [ -z "$JAVA_HOME" ]; then
             jdks=`ls -r1d /usr/java/j*`
             for jdk in $jdks; do
               if [ -f "$jdk/bin/java" ]; then
@@ -27,6 +28,7 @@ case "`uname`" in
                 break
               fi
             done
+          fi
           ;;
 esac