fix: rare decoding error on UTF-8 documents #1579
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On rare occasions, decoding UTF-8 documents caused a fatal error RSC-016 (
Invalid byte 2 of 4-byte UTF-8 sequence.
).This was likely due to a bug in the Xerces XML parser decoding component, see https://issues.apache.org/jira/browse/XERCESJ-1668
As a workaround, we now read documents using the Java built-in UTF-8 decoder instead of Xerces's own decoder, by creating the SAX parsers' InputSource from an InputStreamReader instead of the raw InputStream.
Fixes #1548