ClassCastException in HeaderCell.addToTotal when totaling column
----------------------------------------------------------------
Key: DISPL-375
URL: http://jira.codehaus.org/browse/DISPL-375
Project: DisplayTag
Type: Bug
Components: Tag Library
Versions: 1.1
Reporter: Michael Watts
I am getting a ClassCastException in org.displaytag.model.HeaderCell.addToTotal
when value for cell is the empty string "". This is a problem when totaling a
column using the total="true" attribute on ColumnTag.
This method should be changed to avoid this problem. Here is my proposed:
Original:
=====
private void addToTotal(Object value)
{
if (value != null)
{
this.total = this.total + ((Number) value).doubleValue();
}
}
=====
Proposal:
=====
private void addToTotal(Object value)
{
if (value != null && value instanceof Number)
{
this.total = this.total + ((Number) value).doubleValue();
}
}
=====
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