Bug 270092 [CellEditors] [cell editors] TextCellEditor should not specify minimum size
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/TextCellEditor.java
return text.getText();
    }
    /* (non-Javadoc)
     * Method declared on CellEditor.
     */
    protected void doSetFocus() {
        if (text != null) {
            text.selectAll();
            text.setFocus();
            checkSelection();
            checkDeleteable();
            checkSelectable();
        }
    }
    /**
     * The <code>TextCellEditor</code> implementation of
     * this <code>CellEditor</code> framework method accepts
     * a text string (type <code>String</code>).
     *
     * @param value a text string (type <code>String</code>)
     */
    protected void doSetValue(Object value) {
        Assert.isTrue(text != null && (value instanceof String));
        text.removeModifyListener(getModifyListener());
        text.setText((String) value);
        text.addModifyListener(getModifyListener());
    }
    /**
     * Processes a modify event that occurred in this text cell editor.
     * This framework method performs validation and sets the error message