[dbffilewriter] Takes "null" string as null
@@ -373,7 +373,7 @@ public class DbfFileWriter
Column column;
for (int i = 0; i < columns.size(); i++) {
column = record.getColumn(i);
- if (column != null && null != column.getRawData()) {
+ if (column != null && null != column.getRawData() && "null" != column.getRawData()) {
String colData = column.getRawData().toString();
switch (columns.get(i).getString(Key.TYPE)) {
case "numeric":
