ERROR: [Wed Apr 15 18:09:01 EDT 2020] Could not fetch branches from source if this isn't set then all branches will be rebuilt on refCreated and refDeleted events
com.fasterxml.jackson.core.JsonParseException: Unexpected character ('<' (code 60)): expected a valid value (JSON String, Number, Array, Object or token 'null', 'true' or 'false')
 at [Source: (StringReader); line: 1, column: 2]
	at com.fasterxml.jackson.core.JsonParser._constructError(JsonParser.java:1840)
	at com.fasterxml.jackson.core.base.ParserMinimalBase._reportError(ParserMinimalBase.java:712)
	at com.fasterxml.jackson.core.base.ParserMinimalBase._reportUnexpectedChar(ParserMinimalBase.java:637)
	at com.fasterxml.jackson.core.json.ReaderBasedJsonParser._handleOddValue(ReaderBasedJsonParser.java:1916)
	at com.fasterxml.jackson.core.json.ReaderBasedJsonParser.nextToken(ReaderBasedJsonParser.java:772)
	at com.fasterxml.jackson.databind.ObjectReader._initForReading(ObjectReader.java:357)
	at com.fasterxml.jackson.databind.ObjectReader._bindAndClose(ObjectReader.java:1704)
	at com.fasterxml.jackson.databind.ObjectReader.readValue(ObjectReader.java:1261)
	at org.kohsuke.github.GitHubResponse.parseBody(GitHubResponse.java:85)
	at org.kohsuke.github.GitHubPageIterator.lambda$fetch$0(GitHubPageIterator.java:145)
	at org.kohsuke.github.GitHubClient.createResponse(GitHubClient.java:406)
	at org.kohsuke.github.GitHubClient.sendRequest(GitHubClient.java:360)
Caused: org.kohsuke.github.HttpException: Server returned HTTP response code: 200, message: '304 Not Modified' for URL