One cannot run tomcat-vault.sh without manually setting JBOSS_HOME variable because of this line

RESOLVED_JBOSS_HOME=`cd "$DIRNAME/.."; pwd`
if [ "x$JBOSS_HOME" = "x" ]; then
    # get the full path (without any relative bits)
    JBOSS_HOME=$RESOLVED_JBOSS_HOME

RESOLVED_JBOSS_HOME is set to parent directory of tomcat vault, which cause error when one try to run script