On Fri, 3 Jun 2022 10:27:20 GMT, Tejesh R <[email protected]> wrote:
>> _Header_ object not initialized/set when paint() method of
>> `WindowTableHeaderUI` class is executed. The paint() event is executed
>> through explicit call of `JTable.updateUI()` in the regression test. In
>> order to set the _header_ to the _called_ JTable, it is set in the
>> `getTableCellRendererComponent()` method, which in turn makes the _header_
>> object available during paint event without causing NPE.
>
> Tejesh R has updated the pull request incrementally with one additional
> commit since the last revision:
>
> Simplified the Test
Changes requested by aivanov (Reviewer).
test/jdk/javax/swing/JTableHeader/TableRendererTest.java line 46:
> 44: import javax.swing.table.TableCellRenderer;
> 45:
> 46: public class TableRendererTest{
A space between the name and opening brace, please.
test/jdk/javax/swing/JTableHeader/TableRendererTest.java line 50:
> 48: static JFrame frame = null;
> 49: private static JScrollPane jScrollPane = null;
> 50: private static JTable table = null;
Assigning `null` explicitly is not required. A field will always be initialised
to its default value, which is `null` for reference types.
Neither `jScrollPane` nor `table` are used outside of `initialize`, convert
them to local variables.
test/jdk/javax/swing/JTableHeader/TableRendererTest.java line 61:
> 59:
> Thread.currentThread().setUncaughtExceptionHandler(new ExceptionCheck());
> 60: initialize();
> 61: //Adding the Test Frame to handle dispose
This comment is a left-over from previous version.
test/jdk/javax/swing/JTableHeader/TableRendererTest.java line 66:
> 64: }
> 65: }
> 66: });
The try-catch block is unnecessary, we expect no exception, please remove it.
I suggest using a lambda expression instead of anonymous class.
test/jdk/javax/swing/JTableHeader/TableRendererTest.java line 76:
> 74: }
> 75: System.out.println("Test Pass!");
> 76: frame.dispose();
Dispose of the frame before you check for the status. Plus, you have to call
dispose on EDT.
I suggest saving the caught exception and re-throwing it here directly or as
the cause to `RuntimeException`.
Something like this:
SwingUtilities.invokeAndWait(frame::dispose);
if (exception.get() != null) {
throw new RuntimeException("Test Case Failed. NPE raised!",
exception.get());
}
System.out.println("Test Passed");
where `exception` is
private static final AtomicReference<Throwable> exception =
new AtomicReference<>();
test/jdk/javax/swing/JTableHeader/TableRendererTest.java line 84:
> 82: table = new JTable(new MyModel());
> 83: jScrollPane = new JScrollPane();
> 84: jScrollPane.setBounds(new java.awt.Rectangle(0,0,350,618));
Suggestion:
jScrollPane.setBounds(0, 0, 350, 618);
You can pass the parameters directly without creating `Rectangle`. Spaces after
commas, please.
test/jdk/javax/swing/JTableHeader/TableRendererTest.java line 102:
> 100: static class ExceptionCheck implements
> Thread.UncaughtExceptionHandler {
> 101: public void uncaughtException(Thread t, Throwable e)
> 102: {
Put the opening brace on the same line as the declaration, please.
Please add `@Override` annotation to this method and to methods in `MyModel`
and `DecoratedHeaderRenderer`.
test/jdk/javax/swing/JTableHeader/TableRendererTest.java line 129:
> 127: public Component getTableCellRendererComponent(JTable table,
> Object value, boolean isSelected, boolean hasFocus, int row, int column) {
> 128: return render.getTableCellRendererComponent(table, value,
> isSelected, hasFocus, row, column);
> 129: }
I suggest breaking these long lines. You can list parameters as in the
interface declaration:
https://github.com/openjdk/jdk/blob/3789983e89c9de252ef546a1b98a732a7d066650/src/java.desktop/share/classes/javax/swing/table/TableCellRenderer.java#L94-L96
-------------
PR: https://git.openjdk.java.net/jdk/pull/8830
