Having 2 parsers concatenated with JsonParserSequence.createFlattened(parser1, parser2).
If the second parser is on a token that is not null and should not be skipped, the JsonParserSequence will still skip it. JsonParserSequence's nextToken() calls nextToken() on the new delegate which may cause that we miss a token.
For more details : forum question
I'll open a PR for this.
Thanks.