Jump to content
View in the app

A better way to browse. Learn more.
Forge Forums

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.
Please read the rules and FAQ before starting a new topic
Currently supported: All versions

java.util.ConcurrentModificationException: null - Exception in server tick loop

Aisu
in Support & Bug Reports

Featured Replies

Posted

Hi! It's been days that sometimes, when I connect, not everytime, my server crash a few minutes after. I don't understand why and it's getting frustrating. 

Here is the full crash report :

https://pastebin.com/QbSvWEiZ

  • Quote
    • Author

    I changed the version to Java 17, but it still crash the same way with the same error. :/

  • Quote

    The server crashed after a //paste command

    I think it is a server RAM issue - log or crash do not show any RAM allocation, but other JVM Arguments - so the -xmx argument is missing

    Set the RAM allocation by adding -Xmx4G to the server arguments

    Try my Modpack

    spacer.png

    >>Link to Curseforge<<

  • Quote
    • Author

    I don't have access to JVM arguments on my dedicated server on OMGserv, what should I do? My server is actually at 11180 Mo in RAM and 59% CPU

    Edited by Aisu
    I missed critical informations

  • Quote

    • Join the conversation

    You can post now and register later. If you have an account, sign in now to post with your account.
    Note: Your post will require moderator approval before it will be visible.

    Guest
    Unfortunately, your content contains terms that we do not allow. Please edit your content to remove the highlighted words below.
    Reply to this topic...
    https://forums.minecraftforge.net/topic/159585-javautilconcurrentmodificationexception-null-exception-in-server-tick-loop/
    Go to topic listing

    Important Information

    By using this site, you agree to our Terms of Use.

    I accept

    Configure browser push notifications
    Chrome (Android)
    1. Tap the lock icon next to the address bar.
    2. Tap Permissions → Notifications.
    3. Adjust your preference.
    Chrome (Desktop)
    1. Click the padlock icon in the address bar.
    2. Select Site settings.
    3. Find Notifications and adjust your preference.