rsandell stephenconnolly I am reopening this ticket again because the same reported issue seems to be back running (Regression?)

Environment

Jenkins LTS 2.164.2
 * github:1.29.4 'GitHub plugin'
 * github-api:1.95 'GitHub API Plugin'
 * github-branch-source:2.5.0 *(update available)* 'GitHub Branch Source Plugin'

Observations

What we see on Jenkins logs

May 16, 2019 3:12:38 PM org.jenkinsci.plugins.github.webhook.WebhookManager$2 applyNullSafe
WARNING: Failed to add GitHub webhook for GitHubRepositoryName[host=github.com,username=mock-carlosrodlop-org,repository=my-hw-maven-app]
java.lang.NullPointerException: There are no credentials with admin access to manage hooks on GitHubRepositoryName[host=github.com,username=mock-carlosrodlop-org,repository=my-hw-maven-app]

But it is not right... I am using this repo https://github.com/mock-carlosrodlop-org/my-hw-maven-app with user:carlosrodlop and pass:APIToken and as you can tell from the following images carlosrodlop is an admin

Custom dedicated loggers as explained in this guide: GitHub-Webhook-Troubleshooting are not providing any useful hint just

May 16, 2019 4:05:50 PM FINE com.cloudbees.jenkins.GitHubWebHook$1 apply
Calling registerHooks() for multibranch-example-job
May 16, 2019 4:05:51 PM FINE com.cloudbees.jenkins.GitHubWebHook$1 apply
Calling registerHooks() for multibranch-example-job

Manage Jenkins > GitHub plugin > Advanced > Re-register hooks for all jobs > webhook in GitHub is NOT generated either. Independently if I enabled or disable Manage hooks options the output is the same: Works only when Jenkins manages hooks (one or more creds specified)

It is working fine after deep testing

carlosrodlop I experienced the same issue you did. What do you mean "It is working fine after deep testing"? How did your problem disappear?

While my OAuth token used by Jenkins has the admin:repo_hook permission on Github, Jenkins throws this exception for all of my managed repositories:

Jul 06, 2019 10:34:16 AM WARNING org.jenkinsci.plugins.github.webhook.WebhookManager$2 applyNullSafe
Failed to add GitHub webhook for GitHubRepositoryName[host=github.com,username=*****,repository=*****]
java.lang.NullPointerException: There are no credentials with admin access to manage hooks on GitHubRepositoryName[host=github.com,username=*****,repository=*****]
at com.google.common.base.Preconditions.checkNotNull(Preconditions.java:231)
at org.jenkinsci.plugins.github.webhook.WebhookManager$2.applyNullSafe(WebhookManager.java:179)
at org.jenkinsci.plugins.github.webhook.WebhookManager$2.applyNullSafe(WebhookManager.java:175)
at org.jenkinsci.plugins.github.util.misc.NullSafeFunction.apply(NullSafeFunction.java:18)
at com.google.common.collect.Iterators$8.next(Iterators.java:812)
at com.google.common.collect.Iterators$7.computeNext(Iterators.java:648)
at com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:143)
at com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:138)
at com.google.common.collect.Iterators$7.computeNext(Iterators.java:647)
at com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:143)
at com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:138)
at com.google.common.collect.Lists.newArrayList(Lists.java:138)
at com.google.common.collect.Lists.newArrayList(Lists.java:119)
at org.jenkinsci.plugins.github.util.FluentIterableWrapper.toList(FluentIterableWrapper.java:147)
at org.jenkinsci.plugins.github.webhook.WebhookManager$1.run(WebhookManager.java:127)
at hudson.util.SequentialExecutionQueue$QueueEntry.run(SequentialExecutionQueue.java:119)
at jenkins.util.ContextResettingExecutorService$1.run(ContextResettingExecutorService.java:28)
at jenkins.security.ImpersonatingExecutorService$1.run(ImpersonatingExecutorService.java:59)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)

FYI I fixed my issue by regenerating my OAuth access token. It may have been misconfigured in my Jenkins' credentials...

Hi dlakatos847,

I forgot to configure correctly the Git Plugin see https://support.cloudbees.com/hc/en-us/articles/224543927-GitHub-Integration-Webhooks

Regards,