One issue I had with Java was the aesthetics of UI elements. Inheriting the DOM, especially its graphical elements was a boon to JS apps. Technically Java can

One issue I had with Java was the aesthetics of UI elements. Inheriting the DOM, especially its graphical elements was a boon to JS apps. Technically Java can/could do all the same stuff, but in the DOM, input, output, graphics and text all flow together. They're too rigidly separated in Java layouts. While I'm at it, upgrading the Java runtime was always an annoying process, taking time, confusing my sister, etc.