StackOverflowError in shutdown hook

[Venorcis]

With a database created like this:

DBMaker.fileDB(datafile).fileMmapEnable().fileMmapPreclearDisable().cleanerHackEnable().concurrencyDisable().readOnly().closeOnJvmShutdown().make();

I get the following exception when Java (actually my JUnit-test) terminates:

SEVERE: DB.close() thrown exception in shutdown hook.
java.lang.StackOverflowError
	at org.mapdb.volume.ByteBufferVol.unmap(ByteBufferVol.java:347)
	at org.mapdb.volume.ByteBufferVol.unmap(ByteBufferVol.java:347)
        ...

[Venorcis]

of course removing the cleanerHackEnable fixes this, but I don't think the unmapping should cause a stack overflow in any case?

[jankotek]

What version is that?

[Venorcis]

Oops forgot to mention; this is with latest 3.0.2