Examples of errors detected by the V6052 diagnostic

V6052. Calling an overridden method in parent-class constructor may lead to use of uninitialized data.

DBeaver

V6052 Calling overridden 'isBinaryContents' method in 'TextWithOpen' parent-class constructor may lead to use of uninitialized data. Inspect field: binary. TextWithOpenFile.java(77), TextWithOpen.java(59)

public class TextWithOpen extends Composite {
    public TextWithOpen(
        Composite parent,
        boolean multiFS,
        boolean secured
    ) {
        super(parent, SWT.NONE);

        ....
        if (!useTextEditor && !isBinaryContents()) { // <=
            ....

            editItem.setEnabled(false);
        }

        ....
    }

    protected boolean isBinaryContents() {
        return false;
    }
}


public class TextWithOpenFile extends TextWithOpen {
    private final boolean binary;
    ....

    public TextWithOpenFile(
        Composite parent,
        String title,
        String[] filterExt,
        int style,
        boolean binary,
        boolean multiFS,
        boolean secured
    ) {
        super(parent, multiFS, secured);    // <=
        this.title = title;
        this.filterExt = filterExt;
        this.style = style;
        this.binary = binary;               // <=
    }


    @Override
    protected boolean isBinaryContents() {
        return binary;
    }
    ....
}

isBinaryContents() called in the parent constructor before this.binary initialized in the TextWithOpenFile constructor. Therefore, isBinaryContents always returns false, because this is the default value of boolean.