Merging of Table.showGrid does not work in javax.swing.plaf.synth.SynthTableUI

FULL PRODUCT VERSION :


A DESCRIPTION OF THE PROBLEM :
When the style bound to REGION=Table sets Table.showGrid=false, it will not be overwritten in a second style bound to a specific name, which tries to set Table.showGrid=false.
Reason: The preliminary settings of the table will only be overwritten if Table.showGrid is false, if Table.showGrid is true, they won't be changed:

boolean showGrid = style.getBoolean(context, "Table.showGrid", true);
if (!showGrid) {
         table.setShowGrid(false);
 }



EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
The settings of the last style that is bound to my component (either by region or name) should be valid - independent of any previous values
ACTUAL -
The tutorial states that styles will be merged, and that the last one bound to my component will overwrite any previous settings

REPRODUCIBILITY :
This bug can be reproduced always.

CUSTOMER SUBMITTED WORKAROUND :
Don't use the style bound to REGION=Table for the default table implementation, and a second one bound to a NAME for a specific table design. Instead, bind both table designs to a style by NAME and only use the default style for settings that actually will be overwritten.