[mdr-users] java.io.IOException

Hello,
when I use our application with MDR for about 5 minut, following exception is thrown:

java.io.IOException: Neplatný popisovač
	at java.io.RandomAccessFile.seek(Native Method)
	at org.netbeans.mdr.persistence.btreeimpl.btreestorage.FileCache.getPage(FileCache.java:484)
	at org.netbeans.mdr.persistence.btreeimpl.btreestorage.FileCache.getPage(FileCache.java:391)
	at org.netbeans.mdr.persistence.btreeimpl.btreestorage.PrimaryIndex$ValInfo.<init>(PrimaryIndex.java:58)
	at org.netbeans.mdr.persistence.btreeimpl.btreestorage.PrimaryIndex.getIfExists(PrimaryIndex.java:90)
	at org.netbeans.mdr.persistence.btreeimpl.btreestorage.BtreeDatabase.getRecord(BtreeDatabase.java:967)
	at org.netbeans.mdr.persistence.btreeimpl.btreestorage.BtreeDatabase.getIfExists(BtreeDatabase.java:725)
	at org.netbeans.mdr.persistence.btreeimpl.btreestorage.BtreeDatabase.get(BtreeDatabase.java:746)
	at org.netbeans.mdr.persistence.btreeimpl.btreestorage.BtreeMDRSource.getPage(BtreeMDRSource.java:68)
	at org.netbeans.mdr.persistence.btreeimpl.btreeindex.Btree.getLocation(Btree.java:386)
	at org.netbeans.mdr.persistence.btreeimpl.btreeindex.BtreeListByKey$BtreeListByKeyIterator.<init>(BtreeListByKey.java:140)
	at org.netbeans.mdr.persistence.btreeimpl.btreeindex.BtreeListByKey.listIterator(BtreeListByKey.java:101)
	at java.util.AbstractList.listIterator(AbstractList.java:349)
	at java.util.AbstractSequentialList.iterator(AbstractSequentialList.java:250)
	at java.util.AbstractCollection.contains(AbstractCollection.java:94)
	at org.netbeans.mdr.storagemodel.IndexImmutSet.contains(IndexImmutSet.java:81)
	at org.netbeans.mdr.handlers.IndexSetWrapper.contains(IndexSetWrapper.java:84)
	
It's cased by the this code (I use UML 1.4 repository with DI):
Collection clients = dependency.getClient();
Collection suppliers = dependency.getSupplier();

 if((clients!= null && clients.contains(aChangedRefObject)) || (suppliers != null && suppliers.contains(aChangedRefObject))) ...

aChangedRefObject can be instanceof ModelElement or DiagramElement.

This Exception occurs in Windows as well as in Linux (we use Java 1.5 and federative MDR BTree storage).

Any idea what can be wrong?

Best regards
Jarda
____________________________________________________________
http://www.seznam.cz - e-mailová schránka 2000 MB