It's not the same without you

Join the community to find out what other Atlassian users are discussing, debating and creating.

Atlassian Community Hero Image Collage

Synchrony won't start after Confluence update to 6.15.8

Hello all.

After updating from Confluence 6.13.4 to 6.15.8 on Windows 2012r2, Synchrony won't start. If I try and start it manually, I see this in atlassian-confluence.log:

java.lang.NoClassDefFoundError: Could not initialize class com.sun.jna.platform.win32.WinNT$OSVERSIONINFOEX
at oshi.software.os.windows.WindowsOSVersionInfoEx.<init>(WindowsOSVersionInfoEx.java:47)
at oshi.software.os.windows.WindowsOperatingSystem.<init>(WindowsOperatingSystem.java:54)
at oshi.SystemInfo.getOperatingSystem(SystemInfo.java:92)
at com.atlassian.confluence.plugins.synchrony.bootstrap.DefaultSynchronyProcessManager.getConfluenceProcessId(DefaultSynchronyProcessManager.java:688)
at com.atlassian.confluence.plugins.synchrony.bootstrap.DefaultSynchronyProcessManager.setupEnvironment(DefaultSynchronyProcessManager.java:389)
at com.atlassian.confluence.plugins.synchrony.bootstrap.DefaultSynchronyProcessManager.trySetup(DefaultSynchronyProcessManager.java:696)
at com.atlassian.confluence.plugins.synchrony.bootstrap.DefaultSynchronyProcessManager.lambda$startProcess$1(DefaultSynchronyProcessManager.java:590)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
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)

My setup is very simple, I used the exe installer and don't have other separate components of Confluence (i.e. Synchrony running as its own daemon or external Java).

Synchrony was working fine in confluence 6.13.4.

Has anyone seen this error before?

2 answers

1 accepted

0 votes
Answer accepted

Hello,

Thanks for reporting your issues with Synchrony having issues starting after a Confluence upgrade. The include error log does help to see what is going on. I would ask you to please check your versions of Java currently installed within your Windows server, we need to ensure that you’re running Java x64 and not Java x86. This could most likely be the cause of the “java.lang.NoClassDefFoundError:”

If you’ve confirmed the proper Java is installed and being used as $JAVA_HOME and $JRE_HOME and you’re still having the issue please let us know.

Regards,
Stephen Sifers

Hello again,

After looking into this further, your issue looks to be related to a bug. Here is the bug request: CONFSERVER-58784 along with the workaround for the issue:

Downgrade the bundled AdoptOpenJDK from 1.8.0_222-10 to previously bundled JVM (i.e. 1.8.0_202-b08) resolves the issue.

Substitute C:\Program Files\Atlassian\Confluence below if you have Confluence installed in a non-default location.

  1. Download AdoptOpenJDK 8u202-b08 from https://github.com/AdoptOpenJDK/openjdk8-binaries/releases/download/jdk8u202-b08/OpenJDK8U-jre_x64_windows_hotspot_8u202b08.zip
  2. Shutdown Confluence
  3. Rename C:\Program Files\Atlassian\Confluence\jre to C:\Program Files\Atlassian\Confluence\jre8u222-b10
  4. Extract OpenJDK8U-jre_x64_windows_hotspot_8u202b08.zip to C:\Program Files\Atlassian\Confluence - it will extract with a sub-directory called jdk8u202-b08-jre
    1. Rename the new C:\Program Files\Atlassian\Confluence\jdk8u202-b08-jre to C:\Program Files\Atlassian\Confluence\jre
  5. Start Confluence and Collaborative Editing should now start

Please attempt the workaround and let us know the results.

Regards,
Stephen Sifers

Worked like a treat. Thanks!

Like Stephen Sifers likes this

Hi Stephen.

Thank you for your reply.

I have Oracle JRE 8u221 x64, and the env variables are correctly set. I still have the same problem. But I thought that Confluence came with its own JRE. Is that not the case?

Hey Duet Techadmin,

 

Confluence comes with a bundled JRE but to use it you have to start confluence using the "startup_bundled_jre.bat" instead of the service.

Suggest an answer

Log in or Sign up to answer
TAGS
Community showcase
Posted in Confluence

What project did you transition or start on Confluence with the shift to remote work?

It’s been great to hear from fellow users over the last few weeks about the best tips and fun moments you’ve had working on Confluence since the transition to working remote. I’d love to keep the c...

109 views 3 7
Join discussion

Community Events

Connect with like-minded Atlassian users at free events near you!

Find an event

Connect with like-minded Atlassian users at free events near you!

Unfortunately there are no Community Events near you at the moment.

Host an event

You're one step closer to meeting fellow Atlassian users at your local event. Learn more about Community Events

Events near you