Step to reproduce:

• Prepare 1 dialog definition has 3 tabs that the second and the third tab has only 1 required field. dialog-show-all.png
• Open that dialog
• Doesn't need to input anything and click Save button

Output: Can see the correct error number but clicking to "Jump to next error" doesn't jump any where clicking-to-jump-to-next-error-but-nothing-happens.png even the second tab and the third tab has error second-tab-error.pngthird-tab-error.png

Problem: comes from FormSection.getNextProblematicField(Connector) function

    public Component getNextProblematicField(Connector currentFocused) {
        int startIndex = components.indexOf(currentFocused) + 1;
        if (startIndex < components.size() - 1) {
            while (startIndex < components.size()) {
                Component c = components.get(startIndex++);
                if (c instanceof AbstractField && !((AbstractField<?>) c).isValid()) {
                    return c;
                }
            }
        }
        return null;
    }

The if condition if (startIndex < components.size() - 1) is incorrect for the case: tab has only one field. startIndex is 0 and (components.size() - 1) is 0 also. So can't find the invalid component as expected