XmlCompareUtil Methods

Element-by-element equivalence check that:

• Treats null vs semantically-empty as equal.
• Skips xmlns declarations and xsi:nil markers in attribute compare.
• Compares children positionally (sibling order matters).

Returns a list of human-readable difference descriptions between a and b, post-prune. Empty list when the trees are equivalent.

Returns true when e has no children, no non-whitespace value, and no meaningful attributes (either none at all or only an xsi:nil="true" marker).

Returns true when a and b are structurally equivalent after pruning semantically-empty children.

Recursively removes child elements that carry no real signal: no sub-elements, no non-whitespace value, and no meaningful attributes (none, or only an xsi:nil="true" marker). Leaves node in place.