copy existing row in existing table with XmlUtils.deepCopy

[shaolinmaster]

when adding a new row in an existing table with one row
like this:
Tr workingRow = (Tr) XmlUtils.deepCopy(existingRow);
tbl.getContent().add(workingRow);

and then:
tableElement.getContent().remove(existingRow);
everything works fine.

But if I don't remove the existingRow or add more rows then I have a java.util.ConcurrentModificationException.
Can you help me please?

[jason]

You just need to respect Java's standard rules/idiosyncrasies when manipulating lists (eg deleting while iterating).

If you are identifying objects for deletion inside a for, put these in a second list, then, outside the for, delete them.

Hope this helps. If you need more help, you'll need to provide some executable code.