Tag Archives: ConcurrentModificationException

ConcurrentModificationException in Java: Causes and Fixes

By | August 23, 2026

What is ConcurrentModificationException? The ConcurrentModificationException is a runtime exception in Java, which means the Java compiler does not require you to handle it explicitly using try-catch blocks. The Runtime exception is thrown automatically at runtime when it occurs. ConcurrentModificationException typically happens when a Java collection — such as a List, Set, or Map — is… Read More: ConcurrentModificationException in Java: Causes and Fixes »