Given the code below, there is exactly one error: the method at line D has not been defined.

However, if you change the first constructor in a way that the parser is re-run,
the second constructor displays a second warning at line B or line C:

    "Call to super must be first statement in constructor"

How the file is changed seems to determine whether the error is reported at B or C.

If I delete the semicolon at line A, then add it back, line C is flagged.

If I put the cursor after A and type <CR>serr<TAB>, line B is flagged.

Making another change will cause the error to disappear. Even switching to anoter application and back will cause the
error to disappear.

import javax.swing.Icon;
import javax.swing.JButton;
public class A extends JButton {
    public A(Icon icon) {
        super(icon); // A
    }
    public A(String text) { // B
        super(text); // C
        someMethod(text); // D
    }
}