Do you think that Camel and SOLR and Scala are worth learning? If yes, then learn some Java as well, but remember that the world of today is different than the

Do you think that Camel and SOLR and Scala are worth learning? If yes, then learn some Java as well, but remember that the world of today is different than the world when most Java books were written and most Java curriculums were designed. In other words Java is NOT going to dominate the world, is NOT even going to dominate the Enterprise, and not everything in the Java ecosystem is going to last. But some parts are damn good, like Oracle's JVM, 3rd party commercial JVMs, Camel, Groovy, Scala, SOLR, Lucene, many of the projects in the Apache foundation, Eclipse, IntelliJ, many or the projects from Spring.IO, and so on. It is probably not worth your while to become proficient with J2EE but some bits of it like JDBC are still widely useful. If you do decide to tackly J2EE be aware that you are walking the same path of the COBOL programmers of old, and you will likely spend the rest of your professional life working with Java J2EE enterprise stuff that suffers severely from the Big Ball of Mud and various other antipatterns. I guess that someone has to do it, but I also guess that most people on HN are like me, and are want to always learn new platforms and apply the latest knowledge coming out of the computer science academic world. We want to speed up innovation, and plain Java is not where it is at.