Bug 319600 [Viewers] CheckboxTableViewer.getCheckedElements based on virtual table returns null data objects
Build Identifier: 20100617-1415 If programmatically select all rows in CheckboxTableViewer created upon virtual table using setAllChecked, then getCheckedElements method returns null data objects, probably, for non-displayed rows. In spite of the fact, that table is virtual, it is expected that getCheckedElements returns concrete non-null data objects associated with rows. Reproducible: Always Steps to Reproduce: 1. Launch attached snippet. 2. Click "Select/Deselect All" to select all rows, then click "Null Rows" and message with number of rows with null data objects will be displayed.
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/CheckboxTableViewer.java
*/
    public Object[] getGrayedElements() {
        TableItem[] children = getTable().getItems();
        List v = new ArrayList(children.length);
        for (int i = 0; i < children.length; i++) {
            TableItem item = children[i];
            if (item.getGrayed()) {
				v.add(item.getData());
			}
        }
        return v.toArray();
    }
    /* (non-Javadoc)
     * Method declared on StructuredViewer.
     */
    public void handleSelect(SelectionEvent event) {
        if (event.detail == SWT.CHECK) {
            super.handleSelect(event); 
            TableItem item = (TableItem) event.item;
            Object data = item.getData();
            if (data != null) {
                fireCheckStateChanged(new CheckStateChangedEvent(this, data,
                        item.getChecked()));
            }
        } else {
			super.handleSelect(event);
		}
    }
    /* (non-Javadoc)
     * Method declared on Viewer.