[JIRA] (JENKINS-61924) json parsing error when fetching branches from github

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sean qian created an issue   Jenkins / JENKINS-61924 json parsing error when fetching branches from github Issue Type: Bug Assignee: Kirill Merkushev Components: github-api-plugin, github-branch-source-plugin, github-plugin Created: 2020-04-15 22:20 Environment: GitHub Branch Source Plugin: 2.6.0 GitHub plugin: 1.29.5 GitHub API Plugin: 1.110 Branch API: 2.3.0 Jenkins: 2.164.3 Priority: Blocker Reporter: sean qian When fetching branches from the github repository, having the following error. 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   Add Comment   This message was sent by Atlassian Jira (v7.13.12#713012-sha1:6e07c38) -- You received this message because you are subscribed to the Google Groups "Jenkins Issues" group. To unsubscribe from this group and stop receiving emails from it, send an email to jenkinsci-issues+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/jenkinsci-issues/JIRA.205800.1586989200000.12195.1586989260311%40Atlassian.JIRA.