Temporary files cannot be deleted in mmap mode

[LEIHAOYUAN]

Dear author：
Dependent version： 3.0.8
example code：
DBMaker.tempFileDB()
.fileMmapEnable()
.fileMmapPreclearDisable()
.fileDeleteAfterClose()
.closeOnJvmShutdown()
.closeOnJvmShutdownWeakReference()
.make();
problem description：
Temporary files can be deleted normally under java unit tests. Temporary file deletion is not deleted in the Spring web environment