Created attachment 163883 [details]
panel not top align

please see attachment first

	<folder name="Editors">
		<folder name="SideBar">
			<file name="com-pdk-sidebar-AddressSideBarFactory.instance">
				<attr name="position" intvalue="0"/>
				<attr name="location" stringvalue="West"/>
				<attr name="scrollable" boolvalue="true"/>
			</file>
		</folder>
	</folder>

public class AddressSideBarFactory implements org.netbeans.spi.editor.SideBarFactory {

	public static AddressPanel addressPanel;

	@Override
	public JComponent createSideBar(JTextComponent jtc) {
		AddressSideBarFactory.addressPanel = new AddressPanel(jtc);

		int width = jtc.getFontMetrics(jtc.getFont()).stringWidth("00000000");
		addressPanel.setPreferredSize(new Dimension(width, 100));
                return addressPanel;
        }
}