org.apache.commons.lang.UnhandledException: Plugin MagicWands v1.0 generated an exception while executing task 247

Stack Overflow | jetp250 | 6 months ago
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    A strange ConcurrentModificationException on iteration

    Stack Overflow | 6 months ago | jetp250
    org.apache.commons.lang.UnhandledException: Plugin MagicWands v1.0 generated an exception while executing task 247
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    GitHub | 4 years ago | MrPuddingMan
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Root Cause Analysis

  1. java.util.ConcurrentModificationException

    No message provided

    at java.util.ArrayList$Itr.checkForComodification()
  2. Java RT
    ArrayList$Itr.next
    1. java.util.ArrayList$Itr.checkForComodification(Unknown Source)
    2. java.util.ArrayList$Itr.next(Unknown Source)
    2 frames
  3. io.jettymc.DataHolders
    ProjectileManager$1.run
    1. io.jettymc.DataHolders.ProjectileManager.iterate(ProjectileManager.java:117)
    2. io.jettymc.DataHolders.ProjectileManager$1.run(ProjectileManager.java:232)
    2 frames
  4. org.bukkit.craftbukkit
    CraftAsyncTask.run
    1. org.bukkit.craftbukkit.v1_9_R2.scheduler.CraftTask.run(CraftTask.java:58)
    2. org.bukkit.craftbukkit.v1_9_R2.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:53)
    2 frames
  5. com.destroystokyo.paper
    ServerSchedulerReportingWrapper.run
    1. com.destroystokyo.paper.ServerSchedulerReportingWrapper.run(ServerSchedulerReportingWrapper.java:22)
    1 frame
  6. Java RT
    Thread.run
    1. java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    2. java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    3. java.lang.Thread.run(Unknown Source)
    3 frames