SEVERE [LongRunningTask] Exception running task SEVERE [LongRunningTask] java.util.ConcurrentModificationException at java.base/java.util.ArrayList$Itr ...

In this blog we will understand about Vector Class in Collection Framework. We use vector class to facilitate the growable nature of collection of objects. Like array we can access any member of the ...

Community driven content discussing all aspects of software development from DevOps to design patterns. There are two ways to implement the Java Scanner import: explicitly reference the ...

Community driven content discussing all aspects of software development from DevOps to design patterns. Have you inadvertently run into Java’s ...

So I guess nodes is a plain HashSet which will throw. If it is not big, I'd copy it for from() and then freely delete from the original. In addition, I'd create this config subject with toSynchronized ...

With the increasingly complexity of concurrent applications, many developers find that Java’s low-level threading capabilities are insufficient to their programming needs. In that case, it might be ...