public final void incRef(){
  ensureOpen();
  refCount.incrementAndGet();
}

public final void incRef ( ) { ensureOpen ( ) ; refCount . incrementAndGet ( ) ; }
expert : increments the refcount of this taxonomyreader instance . refcounts can be used to determine when a taxonomy reader can be closed safely , i . e . as soon as there are no more references . be sure to always call a corresponding decref ( ) , in a finally clause ; otherwise the reader may never be closed .
