[JENKINS-58940] ActiveDirectory.updateUserCache uncaughtException

Updated plugins using install_plugins.sh (the docker model).

 

Upon startup, seeing the following the in the logs when user logs in. Login is successful however.

 

hudson.init.impl.InstallUncaughtExceptionHandler$DefaultUncaughtExceptionHandler uncaughtException

SEVERE: A thread (ActiveDirectory.updateUserCache 1/332) died unexpectedly due to an uncaught exception, this may leave your Jenkins in a bad way and is usually indicative of a bug in the code.

java.lang.NullPointerException

   at hudson.Util.fileToPath(Util.java:1501)

   at hudson.model.UserIdMapper.createDirectoryForNewUser(UserIdMapper.java:145)

   at hudson.model.UserIdMapper.putIfAbsent(UserIdMapper.java:92)

   at hudson.model.User.putUserFolderIfAbsent(User.java:806)

   at hudson.model.User.constructUserConfigFile(User.java:802)

   at hudson.model.User.save(User.java:796)

   at hudson.model.User.addProperty(User.java:336)

   at hudson.plugins.active_directory.ActiveDirectoryUserDetail.updateUserInfo(ActiveDirectoryUserDetail.java:213)

   at hudson.plugins.active_directory.ActiveDirectoryUnixAuthenticationProvider$2.run(ActiveDirectoryUnixAuthenticationProvider.java:462)

   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) 

---
Originally reported by ianw, imported from: ActiveDirectory.updateUserCache uncaughtException

• assignee: fbelzunc
  
• status: Open
  
• priority: Major
  
• component(s): active-directory-plugin
  
• resolution: Unresolved
  
• votes: 7
  
• watchers: 11
  
• imported: 2025-12-07
  

Raw content of original issue

Updated plugins using install_plugins.sh (the docker model).


 


Upon startup, seeing the following the in the logs when user logs in. Login is successful however.


 


hudson.init.impl.InstallUncaughtExceptionHandler$DefaultUncaughtExceptionHandler uncaughtException

 SEVERE: A thread (ActiveDirectory.updateUserCache 1/332) died unexpectedly due to an uncaught exception, this may leave your Jenkins in a bad way and is usually indicative of a bug in the code.

 java.lang.NullPointerException

    at hudson.Util.fileToPath(Util.java:1501)

    at hudson.model.UserIdMapper.createDirectoryForNewUser(UserIdMapper.java:145)

    at hudson.model.UserIdMapper.putIfAbsent(UserIdMapper.java:92)

    at hudson.model.User.putUserFolderIfAbsent(User.java:806)

    at hudson.model.User.constructUserConfigFile(User.java:802)

    at hudson.model.User.save(User.java:796)

    at hudson.model.User.addProperty(User.java:336)

    at hudson.plugins.active_directory.ActiveDirectoryUserDetail.updateUserInfo(ActiveDirectoryUserDetail.java:213)

    at hudson.plugins.active_directory.ActiveDirectoryUnixAuthenticationProvider$2.run(ActiveDirectoryUnixAuthenticationProvider.java:462)

    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) 

environment

```
Jenkins 2.176.2

active-directory:2.16
```

1 attachment

- [active_dir.dump.txt](https://issues.jenkins.io/secure/attachment/48335/active_dir.dump.txt)

Reproduce the startup/login flow described for Jenkins 2.176.2 with active-directory 2.16, then trace ActiveDirectoryUserDetail.updateUserInfo at line 213 and ActiveDirectoryUnixAuthenticationProvider$2.run at line 462. Compare the call chain through User.addProperty, User.save, UserIdMapper, and Util.fileToPath. Done means the login flow no longer produces the uncaught NullPointerException in the logs.

Written by the indexing model from the issue text.