In this Java file upload example, the target server is Tomcat 9, although the latest JBoss, Jetty, WebSphere or OpenLiberty servers will also work. When the application runs, a file selector will ...

First, standard Java property files do not allow multiple keys separated by periods (key1.key2.key3 = value). That level of nesting, while handy, is impossible without writing custom property file ...

Java object serialization is a feature of the JDK that is far too often overlooked. When a developer puts together a prototype or cooks up a proof of concept, simply saving a serialized Java object to ...