RFR: 8352908: Open source several swing tests batch1

[Harshitha Onkar]

On Wed, 9 Apr 2025 21:47:07 GMT, Damon Nguyen <dnguyen at openjdk.org> wrote:

> Open-sourcing and standardizing several tests (JSplitPane JApplet JToolBar)

LGTM apart from the suggestion to use `.setPreferredSize()` instead of `.setSize()` for JSplitPane test

test/jdk/javax/swing/JSplitPane/bug4749792.java line 53:

> 51:         JPanel right = new JPanel();
> 52:         left.setSize(200, 200);
> 53:         right.setSize(200, 200);

You may want to use preferred size for right and left panes so that the JSplitPane divider is not skewed to the left.
 
Suggestion:

        left.setPreferredSize(new Dimension(200, 200));
        right.setPreferredSize(new Dimension(200, 200));

test/jdk/javax/swing/JSplitPane/bug4749792.java line 58:

> 56: 
> 57:         JPanel south = new JPanel();
> 58:         south.setSize(new Dimension(20, 20));

Same with south and east panels - setPreferredSize()

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Marked as reviewed by honkar (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/24559#pullrequestreview-2761178135
PR Review Comment: https://git.openjdk.org/jdk/pull/24559#discussion_r2040060795
PR Review Comment: https://git.openjdk.org/jdk/pull/24559#discussion_r2040062608