https://DevOpsCloud.io -- Cloud Monk Losang Jinpa, Ph.D., MCSE/MCT, GitOps DevOps Engineer

Java Optional.filter() is a method in the Java Optional class that returns an empty Optional if the value is not present or if the value does not satisfy the provided predicate. It allows conditional filtering of the value contained inside an Optional. Introduced in Java 2014 with Java 8, filter() is commonly used in functional programming to handle optional values and avoid null checks.

https://docs.oracle.com/javase/8/docs/api/java/util/Optional.html