Eclipse Version 2022-06 (4.24.0) reports this warning in the following places:

```
Null pointer access: The variable instance can only be null at this location RuleTest.java line 175 /graphics/src/test/java/test/javafx/css
```

This code cannot be right:

    @Ignore("JDK-8234154")
    @Test
    public void testToString() {
        System.out.println("toString");
        Rule instance = null;
        String expResult = "";
        String result = instance.toString(); // <---- NPE
        assertEquals(expResult, result);
        fail("The test case is a prototype.");
    }