On Fri, 28 Nov 2025 06:29:45 GMT, Prasanta Sadhukhan <[email protected]> wrote:
> When a `JTable `using any objects of type `DefaultTableCellRenderer`, or > subclasses, is serialized, > the colors used to render cells in the JTable subsequent to the call to > `writeObject()` > are forced to the default colors for `DefaultTableCellRenderer`'s immediate > base class, JLabel, causing the colors > defined in the JTable (typically black on white) to be ignored. > > The problem seems to stem from a call to > `installUI `in the `writeObject()` method of `JLabel`, > `DefaultTableCellRenderer`'s base class. > This causes the `setForeground` and `setBackground` methods to be invoked > with specific colors, which turn out to be JLabel's defaults. > Invoking these methods subsequently with parameters of null restores normal > operation same as is explicitly done in `DefaultTableCellRenderer.updateUI()` > https://github.com/openjdk/jdk/blob/195b36f90b789b64f4a0fc867c620935d609a455/src/java.desktop/share/classes/javax/swing/table/DefaultTableCellRenderer.java#L159-L162 > > CI run is ok.. This pull request has now been integrated. Changeset: 2ea3c00e Author: Prasanta Sadhukhan <[email protected]> URL: https://git.openjdk.org/jdk/commit/2ea3c00e4f2a6e8c0a55039aee6fdfc8194a70a7 Stats: 151 lines in 2 files changed: 150 ins; 0 del; 1 mod 4337898: Serializing DefaultTableCellRenderer changes colors Reviewed-by: azvegint ------------- PR: https://git.openjdk.org/jdk/pull/28549
