[richfaces-issues] [JBoss JIRA] Created: (RF-5976) Multiple extendedDataTable on one page lead to a "Array index out of range"-Exception when user resizes a column of one of them

[Marcel Urbanek (JIRA)]

Multiple extendedDataTable on one page lead to a "Array index out of range"-Exception when user resizes a column of one of them
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                 Key: RF-5976
                 URL: https://jira.jboss.org/jira/browse/RF-5976
             Project: RichFaces
          Issue Type: Bug
    Affects Versions: 3.3.0
            Reporter: Marcel Urbanek
            Priority: Minor


When I use only one extendedDataTable on a page, everything is fine. 

When I use two or more extendedDataTable, with different number of columns, I get the following exception when I try to resize a column of the second table (if the tables have a different number of columns):

Error 500: Array index out of range: 8 
at org.richfaces.component.ColumnsSizeState.changeColumnSize(ExtendedDataTableState.java:337)

Reason for that is the following: Richfaces seems to apply the changed column sizes to all(?) extendedDataTable in the View. It gets a little clearer whe you look at the requests that are submitted to the server:

AJAXREQUEST	_viewRoot
columnResizeAction	columnResizeAction
columnWidths	67;69;154;231;67;231;144;17;

This problem can be worked around, when I add a a4j:region around the tables. The Ajaxrequest then looks like the following:

AJAXREQUEST	j_id10:workingTableRegion
columnResizeAction	columnResizeAction
columnWidths	67;67;156;231;67;314;61;17;

So only the affected table is updated, no Exception occurs then.

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