RFR: 6292135: DefaultTableModel.setColumnIdentifiers() Clears JTable Row Heights [v2]

[Prasanta Sadhukhan]

> Calling `DefaultTableModel.setColumnIdentifiers()` resizes the row height of the table to default row height (16) even if the row height is changed to something other than the default using `JTable.setRowHeight(row, height).` 
> The spec of `DefaultTableModel.setColumnIdentifiers()` https://docs.oracle.com/en/java/javase/24/docs/api/java.desktop/javax/swing/table/DefaultTableModel.html#setColumnIdentifiers(java.lang.Object[]) says that it
> `replaces the column identifiers in the model`, that is, the header field of the column is changed to the passed identifier and nowhere it is mentioned that row height would be changed.
> 
> The issue happens because calling `DefaultTableModel.setColumnIdentifiers()` results in the firing of a `TableModelEvent` with HEADER_ROW event and JTable resets the `rowModel` for it irrespective of what the event is.
> Fix is to not reset the `rowModel` to keep the set rowHeight intact for HEADER_ROW event
> 
> No other issue observed with CI with this fix..

Prasanta Sadhukhan has updated the pull request incrementally with one additional commit since the last revision:

  Test headless

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Changes:
  - all: https://git.openjdk.org/jdk/pull/28529/files
  - new: https://git.openjdk.org/jdk/pull/28529/files/e5b4f158..0e33270a

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=28529&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=28529&range=00-01

  Stats: 51 lines in 1 file changed: 1 ins; 32 del; 18 mod
  Patch: https://git.openjdk.org/jdk/pull/28529.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/28529/head:pull/28529

PR: https://git.openjdk.org/jdk/pull/28529