If you're using Windows, you may already have a JRE installed, but upgrading usually won't hurt.If you aren't planning to use Eclipse for Java development and want to save some disk space, install a JRE. If you intend to use Eclipse for Java development, then you should install a JDK. You may either install a Java Runtime Environment (JRE), or a Java Development Kit (JDK), depending on what you want to do with Eclipse. Regardless of your operating system, you will need to install some Java virtual machine (JVM). In all cases, Eclipse requires a 64-bit JVMĪ Java Development Kit (JDK) includes many useful extras for Java developers including the source code for the standard Java libraries. If you are using Eclipse to do Java development, or are on macOS, install a JDK. I'm pretty sure that the eclipse foundation already has everything under their umbrella now for JakartaEE.Current releases of Eclipse require Java 17 JRE/JDK or newer. Does this mean that every time someone from an old project start a new one that the latter is dead? No imo New specs are born all the time, just look at jspecify. I don't see how this is even an argument. I'm pretty sure they have a new spec for that for this reason, also practically nobody uses jsf today but that's another story The spec is also not helpful at all on JSF, as it describes a couple of useless components. Things have changed just a bit in that time I've always seen it advertised as you don't need to need to learn a whole new framework if you want to use X new framework because most things are standardized.ġ5 years ago. I mean I never saw it advertised that way, but obviously it's a benefit. My whole experience with Java EE is that it appeared as a good idea, some people may even had believed in it, but the cynic in me only see it now as a way for vendors to sell their application servers under the cover of "no vendor lock in".Īlso, sorry, but the application server is dead since a couple of years already. Now that the mess has been finally solved, they should merge back to Eclipse Jakarta EE, right? But they don't. Sure, but to speed things up, a couple of actors decided to start MicroProfile, a not-quite-concurrent-but-still-a-bit set of specs to move forward during the freeze. Want to talk more about specs? What about the 2-years freeze during which there were no releases because there was a legal issue with Oracle regarding. Worse, sometimes you need multiple vendors for the whole panoply of components you need. ![]() ![]() If you want to be serious about it, you need more powerful components provided by a specific vendor. I spent two weeks rewriting it to make it work. OC4J didn't consider line breaks to be significant while WebSphere did. I "only" had to reformat the XML because XML parsers were different. I had to do a migration about 15 years ago from OC4J (it's dead now) to WebSphere. Let me tell you that it's just plain lies. The way it is advertised is that you write against the specification, and you can transparently move from one implementation to another. Learn Programming Java Help ← Seek help here Learn Java Java Conference Videos Java TIL Java Examples JavaFX Oracle JVM LanguagesĬlojure Scala Groovy ColdFusion Kotlin Want to practice your coding?ĭailyProgrammer ProgrammingPrompts ProgramBattles List of useful Frameworks / Libraries / Software If you have any questions, please do not hesitate to ask them! Related Sub-reddits: Some vendors will be supporting releases for longer than six months. If you would like to download Java for free, you can get OpenJDK builds from the following vendors, among others:Īdoptium (formerly AdoptOpenJDK) RedHat Azul Amazon SAP Liberica JDK Dragonwell JDK GraalVM (High performance JIT) Oracle Microsoft ![]() ![]() With the introduction of the new release cadence, many have asked where they should download Java, and if it is still free. Join us on IRC #reddit-java Where should I download Java? No surveys, no job offers! Such content will be removed without warning.No programming help questions here! These should be posted in /r/javahelp.Do not post tutorials here! These should go in /r/learnjava.Upvote good content, downvote spam, don't pollute the discussion with things that should be settled in the vote count. Please seek help with Java programming in /r/Javahelp! Subreddit rules! These have separate subreddits - see below. Submit Link Submit Text Seek Programming Help News, Technical discussions, research papers and assorted things of interest related to the Java programming language NO programming help, NO learning Java related questions, NO installing or downloading Java questions, NO JVM languages - Exclusively Java
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