Help with ConcurrentModdificationException

[Chernobyl 0]

Hello,

 

I need your help guys. I want to get all trees in a specific area....

List<GameObject> trees = getGameObjects().all(t -> woodArea.contains(t) && t != null && t.getName().equals("Tree"));

Without the area condition it works, if not I get ConcurrentModdificationException Can you explain me what I did wrong please? 

 

[ERROR]17:32:51: Exception has occurred while running! Please report error to developer if problem persists:
    java.util.ConcurrentModificationException
    at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1380)
    at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
    at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
    at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)
    at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
    at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499)
    at org.dreambot.api.methods.interactive.GameObjects.all(GameObjects.java:72)
    at org.dreambot.api.methods.interactive.Interactables.all(Interactables.java:59)
    at TreeChopper.getTarget(TreeChopper.java:100)
    at TreeChopper.onLoop(TreeChopper.java:555)
    at org.dreambot.api.script.AbstractScript.run(AbstractScript.java:251)
    at java.lang.Thread.run(Thread.java:748)

 

Tank you.

[Manly 879]

Put the null check first in your filter and try again.

[Chernobyl 0]

Put the null check first in your filter and try again.

I get the same error again.

[Manly 879]

I get the same error again.

 

Is woodarea modified by another thread?

[Chernobyl 0]

Fixed. The area was not generated!