The 1.0 version of the Hypertext Transfer Protocol, issued way back in 1996, only defined three HTTP verbs: GET, POST and HEAD. The most commonly used HTTP method is GET. The purpose of the GET method ...

WebSocketServer crashes when overridden methods (onClose, onError) throw Exceptions. It hit us in production: Due to circumstances, our implementation threw some exceptions in the wrong places for one ...

Community driven content discussing all aspects of software development from DevOps to design patterns. The Java Scanner class provides methods that take String input and convert that String into any ...

This is an example of overriding the application.yml file with the OS environment variables. Single or Array environment variables can be overridden. 4 and 5 are the most common use cases for ...

Do you need to know how to sort Java objects in a collection, array, or map? Here's how to use the Comparable and Comparator interfaces and avoid ClassCastExceptions. Programmers frequently need to ...

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We discuss how to work with directories, sub-directories, and traverse them using Java and the DirectoryStream method. Learn more. A directory is an organizational file system structure that contains ...

Abstract: Java (de)serialization is prone to causing security-critical vulnerabilities that attackers can invoke existing methods (gadgets) on the application's classpath to construct a gadget chain ...