After updating from 8u221 to 8u231, serializing the DOM to a byte array using
transforms causes all lines in signed XML document to end with the  ASCII
character for carriage return.

This is the code that no longer works:
ByteArrayOutputStream writer = new ByteArrayOutputStream();
Transformer trans = TransformerFactory.newInstance().newTransformer();
trans.transform(new DOMSource(ownerDoc), new StreamResult(writer));
xmlSigned = writer.toByteArray();