Database corruption after OutOfMemoryError

after running into an out of memory error [1] the database cannot be used any more [2]. Full stacktraces follow as attachment

[1] OutOfMemoryError Stacktrace
DBMS failure (UE[DRDAConnThread_32]). Exiting with code -1
java.lang.OutOfMemoryError: Java heap space
at java.util.LinkedHashMap.createEntry(Unknown Source)
at java.util.LinkedHashMap.addEntry(Unknown Source)
at java.util.HashMap.put(Unknown Source)
at sun.util.resources.OpenListResourceBundle.loadLookup(Unknown Source)
at sun.util.resources.OpenListResourceBundle.loadLookupTablesIfNecessary(Unknown Source)
at sun.util.resources.OpenListResourceBundle.handleGetObject(Unknown Source)
at sun.util.resources.TimeZoneNamesBundle.handleGetObject(Unknown Source)
at java.util.ResourceBundle.getObject(Unknown Source)
at java.util.ResourceBundle.getObject(Unknown Source)
at java.util.ResourceBundle.getStringArray(Unknown Source)
at sun.util.TimeZoneNameUtility.retrieveDisplayNames(Unknown Source)
at sun.util.TimeZoneNameUtility.retrieveDisplayNames(Unknown Source)
at java.util.TimeZone.getDisplayNames(Unknown Source)
at java.util.TimeZone.getDisplayName(Unknown Source)
at java.util.Date.toString(Unknown Source)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuffer.append(Unknown Source)
at org.apache.derby.impl.services.stream.BasicGetLogHeader.getHeader(Unknown Source)
at org.apache.derby.iapi.error.ErrorStringBuilder.appendln(Unknown Source)
[...]

[2] ERROR XSLA6: Cannot recover the database.
[...]
Caused by: java.lang.NullPointerException
at org.apache.derby.impl.store.raw.data.LogicalPageOperation.generateUndo(Unknown Source)