syscs_import_data_lobs_from_extfile can not read data past 2GB

syscs_util.syscs_import_data_lobs_from_extfile() imports data from .csv file.
For binary data, in csv is expected a reference, where should be data read from.
The reference is in form:
<filename>.<offset>.<length>

The offset and length are implemented as int.
Hence, it is not possible to read binary data which are stored after 2GB.
The stack trace is like:

Caused by: java.lang.NumberFormatException: For input string: "2147563021"
at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
at java.lang.Integer.parseInt(Integer.java:495)
at java.lang.Integer.parseInt(Integer.java:527)
at org.apache.derby.impl.load.ImportReadData.initExternalLobFile(Unknown Source)
at org.apache.derby.impl.load.ImportReadData.getBlobColumnFromExtFile(Unknown Source)
at org.apache.derby.impl.load.ImportAbstract.getBlob(Unknown Source)
at org.apache.derby.iapi.types.SQLBlob.setValueFromResultSet(Unknown Source)
at org.apache.derby.impl.sql.execute.VTIResultSet.populateFromResultSet(Unknown Source)
at org.apache.derby.impl.sql.execute.VTIResultSet.getNextRowCore(Unknown Source)
at org.apache.derby.impl.sql.execute.ProjectRestrictResultSet.getNextRowCore(Unknown Source)
at org.apache.derby.impl.sql.execute.NormalizeResultSet.getNextRowCore(Unknown Source)
at org.apache.derby.impl.sql.execute.NoPutResultSetImpl.getNextRowFromRowSource(Unknown Source)
at org.apache.derby.impl.store.access.heap.HeapController.load(Unknown Source)
at org.apache.derby.impl.store.access.heap.Heap.load(Unknown Source)