Critical Description
if you have a domain with a suffix size greather than 1, eg. dc=example,dc=com, and try to remove an alias, the operation will hang forever.
I have traced the problem and figure that the method dropAliasIndices from JdbmStore.java have a while loop that drives the operation to hang forever if your suffix is greater than 1. Thats because the getPrefix is used with parameter 1 instead of ancestorDn.size() - 1
