Java Swing UIManager with tableHeaderUI

Following this list http://thebadprogrammer.com/swing-uimanager-keys/, everything related to font and colors it's ok but im trying to set deafult heights for components and every single component on that list has a xxxUI, which i have no idea how to implement.

I tried to

UIManager.put("TableHeaderUI", new TableHeaderUI() {
        //it crashes empty aswell
        @Override
        public Dimension getPreferredSize(JComponent c) {
            return super.getPreferredSize(c);
        }
    });

but at runtime it crashes and every table header is gone, heres the error message...

UIDefaults.getUI() failed: no ComponentUI class for: javax.swing.table.JTableHeader[,0,0,0x0,invalid,alignmentX=0.0,alignmentY=0.0,border=,flags=16777224,maximumSize=,minimumSize=,preferredSize=,draggedDistance=0,reorderingAllowed=true,resizingAllowed=true,updateTableInRealTime=true]
java.lang.Error
    at javax.swing.UIDefaults.getUIError(Unknown Source)
    at javax.swing.MultiUIDefaults.getUIError(Unknown Source)
    at javax.swing.UIDefaults.getUI(Unknown Source)
    at javax.swing.UIManager.getUI(Unknown Source)
    at javax.swing.table.JTableHeader.updateUI(Unknown Source)
    at javax.swing.table.JTableHeader.<init>(Unknown Source)
    at javax.swing.JTable.createDefaultTableHeader(Unknown Source)
    at javax.swing.JTable.initializeLocalVars(Unknown Source)
    at javax.swing.JTable.<init>(Unknown Source)
    at javax.swing.JTable.<init>(Unknown Source)

None seems to use this property, i haven't found a specific example of this.