[Jdbm-general] double get for block?

[petite_abeille <pet...@ma...>]

Hello,

I ran into a weird error using jdbm 0.12:

Exception: java.lang.Error
Description: double get for block 390
Location: jdbm.recman.RecordFile.get: 153
Trace: java.lang.Error: double get for block 390
	at jdbm.recman.RecordFile.get(RecordFile.java:153)
	at  
jdbm.recman.FreeLogicalRowIdPageManager.get(FreeLogicalRowIdPageManager. 
java:84)
	at jdbm.recman.LogicalRowIdManager.insert(LogicalRowIdManager.java:80)
	at jdbm.recman.RecordManager.insert(RecordManager.java:144)
	at jdbm.recman.RecordManager.insert(RecordManager.java:156)
	at jdbm.btree.BPage.<init>(BPage.java:206)
	at jdbm.btree.BPage.insert(BPage.java:364)
	at jdbm.btree.BPage.insert(BPage.java:326)
	at jdbm.btree.BPage.insert(BPage.java:326)
	at jdbm.btree.BPage.insert(BPage.java:326)
	at jdbm.btree.BPage.insert(BPage.java:326)
	at jdbm.btree.BTree.insert(BTree.java:270)

The above error points to the following code in RecordFile.java:

          // sanity check: can't be on in use list
          if (inUse.get(key) != null) {
              throw new Error("double get for block " + blockid);
          }

Any ideas on what could cause such an exception?

Thanks :)

Cheers,

PA.