tempFile is not deleted after close

[CreeTar]

Hi, i'm experimenting with mapdb-3.0.8 and tried tempFileDB() but one problem is that the file is created with a timestamp, therefore the file.delete() that is executed right after, won't clean up previous tempFiles. And then the deleteOnExit() has no effect, because the file is still in use, even after calling db.close().

My snippet:

def db = DBMaker
  .tempFileDB()
  .fileMmapEnable()
  .make()
addShutdownHook {
  db.close()
}

I also tried to use closeOnJvmShutdownWeakReference and closeOnJvmShutdown instead of the groovy addShutdownHook to no avail. And fileDeleteAfterClose in combination with fileDB.

Any tip what might be the problem, why the datafile is still locked for changes? I can deleted it manually though, but a new File(...).delete() will return false

-- Windows 10, Groovy 2.5.4

[LEIHAOYUAN]

I had the same problem

[tianyawenke]

Me too