log.debug("Logging off session on " + trans);
                }

                this.netbiosName = null;

                synchronized ( this.trees ) {
                    long us = this.usageCount.get();
                    if ( ( inUse && us != 1 ) || ( !inUse && us > 0 ) ) {
                        log.warn("Logging off session while still in use " + this + ":" + this.trees);