[JENKINS-68794] ConcurrentModificationException while checkout

09:24:15  The recommended git tool is: NONE

09:24:18  

java.util.ConcurrentModificationException

	at java.base/java.util.ArrayList$Itr.checkForComodification(ArrayList.java:1043)

	at java.base/java.util.ArrayList$Itr.next(ArrayList.java:997)

	at com.cloudbees.plugins.credentials.domains.DomainCredentials.getCredentials(DomainCredentials.java:191)

	at com.cloudbees.plugins.credentials.SystemCredentialsProvider$ProviderImpl.getCredentials(SystemCredentialsProvider.java:466)

	at com.cloudbees.plugins.credentials.CredentialsProvider.lookupCredentials(CredentialsProvider.java:564)

	at hudson.plugins.git.GitSCM.lookupScanCredentials(GitSCM.java:946)

	at hudson.plugins.git.GitSCM.createClient(GitSCM.java:918)

	at hudson.plugins.git.GitSCM.createClient(GitSCM.java:838)

	at hudson.plugins.git.GitSCM.checkout(GitSCM.java:1291)

	at org.jenkinsci.plugins.workflow.steps.scm.SCMStep.checkout(SCMStep.java:129)

	at org.jenkinsci.plugins.workflow.steps.scm.SCMStep$StepExecutionImpl.run(SCMStep.java:97)

	at org.jenkinsci.plugins.workflow.steps.scm.SCMStep$StepExecutionImpl.run(SCMStep.java:84)

	at org.jenkinsci.plugins.workflow.steps.SynchronousNonBlockingStepExecution.lambda$start$0(SynchronousNonBlockingStepExecution.java:47)

	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)

	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)

	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)

	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)

	at java.base/java.lang.Thread.run(Thread.java:829)

Finished: FAILURE 

We recieve random exception while checkout pipeline code. After set "Pipeline speed/durability override" at "Less durability, a bit faster" error is almost gone, but not  completely.

---
Originally reported by andreyhry, imported from: ConcurrentModificationException while checkout

• status: Open
  
• priority: Blocker
  
• component(s): credentials-plugin
  
• resolution: Unresolved
  
• votes: 0
  
• watchers: 2
  
• imported: 2025-12-08
  

09:24:15  The recommended git tool is: NONE

09:24:18  

java.util.ConcurrentModificationException

	at java.base/java.util.ArrayList$Itr.checkForComodification(ArrayList.java:1043)

	at java.base/java.util.ArrayList$Itr.next(ArrayList.java:997)

	at com.cloudbees.plugins.credentials.domains.DomainCredentials.getCredentials(DomainCredentials.java:191)

	at com.cloudbees.plugins.credentials.SystemCredentialsProvider$ProviderImpl.getCredentials(SystemCredentialsProvider.java:466)

	at com.cloudbees.plugins.credentials.CredentialsProvider.lookupCredentials(CredentialsProvider.java:564)

	at hudson.plugins.git.GitSCM.lookupScanCredentials(GitSCM.java:946)

	at hudson.plugins.git.GitSCM.createClient(GitSCM.java:918)

	at hudson.plugins.git.GitSCM.createClient(GitSCM.java:838)

	at hudson.plugins.git.GitSCM.checkout(GitSCM.java:1291)

	at org.jenkinsci.plugins.workflow.steps.scm.SCMStep.checkout(SCMStep.java:129)

	at org.jenkinsci.plugins.workflow.steps.scm.SCMStep$StepExecutionImpl.run(SCMStep.java:97)

	at org.jenkinsci.plugins.workflow.steps.scm.SCMStep$StepExecutionImpl.run(SCMStep.java:84)

	at org.jenkinsci.plugins.workflow.steps.SynchronousNonBlockingStepExecution.lambda$start$0(SynchronousNonBlockingStepExecution.java:47)

	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)

	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)

	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)

	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)

	at java.base/java.lang.Thread.run(Thread.java:829)

Finished: FAILURE 



We recieve random exception while checkout pipeline code. After set "Pipeline speed/durability override" at "Less durability, a bit faster" error is almost gone, but not  completely.