René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"[Bug] Expired token unable to refresh","articleBody":"```\r\n2021-07-29 19:44:31.615  INFO [my-bot,1efb3e9c675e3506,1efb3e9c675e3506] 1 --- [nio-8080-exec-7] c.s.github.v3.clients.GitHubClient       : Github token for installation 1234 is either expired or null. Trying to get a new one.\r\n--\r\n2021-07-29 19:44:31.615  INFO [my-bot,1efb3e9c675e3506,1efb3e9c675e3506] 1 --- [nio-8080-exec-7] c.s.github.v3.clients.GitHubClient       : Got JWT Token. Now getting Github access_token for installation 1234\r\n2021-07-29 19:44:31.619 ERROR [my-bot,a1558e2c87f905cd,a1558e2c87f905cd] 1 --- [nio-8080-exec-5] c.comp.path.WebhookErrorHandler  : error processing request: (Could not generate access token for github app)\r\njava.lang.RuntimeException: Could not generate access token for github app\r\n...\r\nCaused by: java.lang.Exception: Got non-2xx status 401 when getting an access token from GitHub: Unauthorized\r\n    at com.spotify.github.v3.clients.GitHubClient.generateInstallationToken(GitHubClient.java:607) ~[github-client-0.0.25.jar:0.0.25]\r\n    at com.spotify.github.v3.clients.GitHubClient.getInstallationToken(GitHubClient.java:581) ~[github-client-0.0.25.jar:0.0.25]\r\n    at com.spotify.github.v3.clients.GitHubClient.getAuthorizationHeader(GitHubClient.java:560) ~[github-client-0.0.25.jar:0.0.25]\r\n```\r\non restart of the application; everything works fine.","author":{"url":"https://github.com/bguedel","@type":"Person","name":"bguedel"},"datePublished":"2021-07-29T19:50:49.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":3},"url":"https://github.com/68/github-java-client/issues/68"}