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https://issues.apache.org/jira/browse/XAP-545?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12548759
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Trevor Oldak commented on XAP-545:
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Same is true with treeTable, tree.
> Widgets: Table: Removing rows from tables leaks memory
> ------------------------------------------------------
>
> Key: XAP-545
> URL: https://issues.apache.org/jira/browse/XAP-545
> Project: XAP
> Issue Type: Bug
> Components: Widgets: Table/Tree/TreeTable
> Reporter: Trevor Oldak
>
> Run the following xal
> <xal xmlns="http://openxal.org/ui"; xmlns:xal="http://openxal.org/ui";>
>
> <macro:macro id="addMultiRow"
> xmlns:macro="http://openxal.org/core/macro";>
> <xm:modifications xmlns:xm="http://openxal.org/core/xmodify";>
> <xm:append select="//table">
> <row>
> <cell text="New Cell 1"/>
> <cell text="New Cell 2"/>
> <cell text="New Cell 3"/>
> </row>
> <row>
> <cell text="New Cell 4"/>
> <cell text="New Cell 5"/>
> <cell text="New Cell 6"/>
> </row>
> </xm:append>
> </xm:modifications>
> </macro:macro>
> <macro:macro id="removeRows"
> xmlns:macro="http://openxal.org/core/macro";>
> <xm:modifications xmlns:xm="http://openxal.org/core/xmodify";>
> <xm:remove-element select="//row"/>
> </xm:modifications>
> </macro:macro>
> <freePane width="500px" height="300px"
> id="testComponentFreePane">
> <table x="100px" y="0px">
> <column>
> <header text="r:Column
> 1"/>
> </column>
> <column
> horizontalAlignment="right" width="80px">
> <header text="c:Column
> 2"/>
> </column>
> <column id="column3">
> <header text="d:Column
> 3"/>
> </column>
> <row>
> <cell text="x"/>
> <cell text="y"/>
> <cell text="z"/>
> </row>
> <row>
> <cell
> text="aaaaaaaaaaaaaaaaaa"/>
> <cell text="c:bbbbbb"
> horizontalAlignment="center" />
> <cell text="ccccc"/>
> </row>
> </table>
> <button text="add"
> onCommand="macro:addMultiRow.execute()" x="0px" y="0px"/>
> <button text="remove"
> onCommand="macro:removeRows.execute()" x="0px" y="30px"/>
> </freePane>
> </xal>
> Click 'remove' to remove rows from the table, 'add' to add rows. One would
> expect that each addition/removal cycle would leave the table with the same
> number of nodes in use. However, removal doesn't just not free up nodes, but
> it uses two more nodes each time it is run.
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