ConcurrentModificationException; cannot fix
29351
Getting a ConcurrentModificationException thrown when removing an element from a java.util.List during list iteration?
31236
Execution of AfterInsert caused by: System.FinalException: Record is read-only
128370
Is there a c# equivalent of Java ConcurrentHashMap
154861
solution for apex cpu time limit exceeded exception
157142
Deadlock caused by thread.join() in a static block
122658
Is there a way to do concurrent editing?
49
What is a NullPointerException, and how do I fix it?
142239
Java "ConcurrentModificationException" runtime error when iterating .next()
6234
Why is a ConcurrentModificationException thrown and how to debug it
44760
Synchronizing on an object in java, then changing the value of the synchronized-on variable
153841
What kind of behaviour causes an interrupted exception?
71407
What to do on TransactionTooLargeException
105884
How can multithreading speed up an application (when threads can't run concurrently)?
35790
How to fix pmd violation "NullAssignment"?
86579
Why does an IllegalThreadStateException occur when Thread.start is called again
88256
Strange code in java.util.concurrent.LinkedBlockingQueue
57795
The calling thread cannot access this object because a different thread owns it.WPF