NullPointerException when using custom ExportViews on sorted tables
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Key: DISPL-371
URL: http://jira.codehaus.org/browse/DISPL-371
Project: DisplayTag
Type: Bug
Components: Export
Versions: 1.1
Reporter: Igor Friedrich
Attachments: stack_trace.txt
Im using a custom ExportView to export table data to a csv file. The export
works fine when exporting from an unsorted table. When i sort the table before
i start the export, then i get a NullPointerException. This problem appears
only in the 1.1 version, the 1.0 works.
I think the problem is that when using an custom ExportView, the
describeEmptyTable method of the TableTag class creates HeaderCell objects (for
all properties of a row bean) without setting the comparator property on them.
As a result the comparator property of the HeaderCell objects is null which
leads to a NullPointerException when exporting a sorted table.
I think a possible solution for this problem would be to set the comparator
property of a HeaderCell object to an DefaultComparator instance in the
describeEmptyTable method.
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