Many of the localization strings in XMLSchemaMessages_de.properties are broken.

Example:
English: cvc-elt.5.2.2.2.2 = cvc-elt.5.2.2.2.2: The value ''
{1}'' of element ''{0}'' does not match the '{'value constraint'}' value ''{2}''.
German: cvc-elt.5.2.2.2.2 = cvc-elt.5.2.2.2.2: Wert "{1}

" des Elements "
{0}" stimmt nicht mit dem "{''value constraint''}"-Wert "{2}" \u00FCberein.

The problem is the '{'value constraint'}', which properly escaped the {-Char, while the German version has a double-quote ("), which doesn't escape the {, so it's interpreted as if the string has an additional parameter named ''value constraint''.

This leads to the problem that the "raw" error-messages (without replaced values) get prefixed by the "FormatFailed" string (e.g. "Beim Formatieren der folgenden Meldung ist ein interner Fehler aufgetreten: Wert "{1}" des Elements "{0}

" stimmt nicht mit dem "
{''value constraint''}

"-Wert "
{2}

" überein." by the java.text.MessageFormat.format(msg, arguments) call.