Java 8 vs Java 11 — What are the Key Changes? What is the minimum version of Java to support? Mark Stephens Oct 7, 1 min read. Do developers still read books? Alicia Aug 31, 6 min read. Leave a Reply Cancel reply Your email address will not be published. View Forms in the browser. View PDF Documents. Convert PDF to image. We had that about a year ago in our product as well, though from Java 7 to Java The idea of using "the latest JDK" is fairly modern in the Java world, so people are still getting used to it.
I think this is one of the few benefits of micro service architectures. You end up with much smaller pieces to migrate over. And if the service is well defined and you have ample logging for endpoints you actually could re-write it. Aa somebody who has had to do a Spring upgrade in the past, from 2. Spring still supports 8 well after it starts supporting Once you reach a certain version of Spring, upgrading the JDK is as simple as changing a 1.
I don't know PrimeFaces, but I have worked with JSP, which does have a flag to set the compiler version in case you were ever thinking about putting java lambda's in JSP files, which is possible but not recommended due to mixing code. The hardest part of upgrading the JDK is going from 8 to 9. After 9 it is much more forgivable. As for Spring, major versions are a pain, as is Hibernate.
The other parts of Spring are generally well upgradable if you read the Spring changelogs. Upgrading Spring and especially major Boot versions is usually much more work than bumping Java version.
Boot change how it does config and such which.. DarkmSparks 15 days ago [—]. There is more to this now tho, because even their topline recommendation misses the fact that Temurin anagram of runtime only provides a small subset of tested builds you need.
Those were mostly for applets or JWS. And in one targets containers or systems with small amount of disk jlink give more gains than JRE. JREs have basically been replaced with building custom executables via jlink.
It basically includes a barebones JVM with only the modules that you need. You no longer have to either distribute or ask your users to download a JRE that includes the kitchen sink, you instead use jlink to create a custom distribution that only includes the modules that your code actually uses.
For example, if your application does not use Swing, jlink won't include it. If you are distributing software based on java a 40mb jre in place of a mb jdk is surely preferred. You can build them yourself for each OS you target with jlink, or you can just grab the latest built and tested one from e.
Bellsoft - but not Adoptium or Oracle. Java has been "breaking changes" between releases to make python blush for a few years now, 17 finally looks like a worthy migration from 8. Difference is not MB. And you get jshell, javac all the nice tools that I missed when some wise guys in distro or corp decided JRE is enough.
DarkmSparks 14 days ago [—]. And jlink wont help you get a jdk for 32bit arm. If you want jdk you don't use jlink. A java.
Officially at least it seems that there are no post Java 8 JREs or maybe Java 11 - I don't remember exactly which is a shame. I know I can do it myself but having a small off the shelf runtime sure was convenient. Why should I stick to LTS? All other versions aren't in any way less tested, you should always stick to the newest released JDK version, be it LTS or not, this way you get all the benefits language features, performance gains and security ones security fixes always first land in the newest version, and are backported to the older ones.
Maybe, but those I use didn have any trouble with any java release. Using so called LTS without paying for it is in no way different from using latest. You get similarly tested software and no one to call if you need a security fix asap.
Zababa 15 days ago [—]. If most people follow the advice of "sticking to LTS", these versions will have way more users, and thus will be more "battle-tested", as in tested in production. You can automatically update and maybe that goes well and maybe problems are caught in testing. Regardless those events and changes have over time have increased costs. LTS should mean lower costs both through increased support focus, increased population of active users, and reduced forced change.
You're not wrong But if you don't buy LTS you won't get it. JDK 11 is now at After 6 months you move to the next release, just like most people do with libraries, JDK is just another library, no need to worry about upgrading, just do normal regression like with upgrades of other libs.
There are no major releases of JDK, all current ones are minor ones - just like in case of JDK 8 you got new features in minor releases e. JDK 13 and 15 do get builds. In large installations I have almost always had problems, some little, some big with major version upgrades of Java. Some people who want to run your software may have a policy of only running LTS versions.
In some cases, this may be your ops team. OpenJDK serves as the upstream for many Java distributions maybe all? Hence there is nothing special about Java 17 vs 16 when it comes to stability.
Even preview features are production ready I used them in production. Just the api might change or it could be removed, but quality wise it is as good as it can be. For features and performance you might as well just target. NET 6. It has things that have been perpetually 'too hard to implement' read: oracle doesn't want to pay their engineers to impl it and will sue you if you do it yourself like value types, generics without type erasure, no checked exceptions, etc.
There's no real reason to use java for new development in Java has a better technology stack. The JVM is light-years ahead of the. NET runtime. Are you referring to its GCs, compilation tiers, or observability?
Not defending Java, but does. NET support Linux at all? Yes -. At least in my opinion, Linux is the preferred deployment platform for it now unless you have a specific usually older library that only works on Windows. NET 5 finally delivered Linux support but only eleven months ago, so I would test it some before betting the farm.
SideburnsOfDoom 14 days ago [—]. NET 5 finally delivered Linux support but only eleven months ago The previous versions in this stream. NET Core 2. NET Core 3. Technically, this starts with. NET core 2. The prior version, 2. NET has been on Linux for years now. Its crazy how dependable and fast it is. Startup times are amazing and its only getting better each year. We're looking to upgrade to. NET 6 in production by January.
Have you even seen the benchmarks compared to Java and other languages? If you're not paying attention to. NET its time to get your head out of the sand, seriously. However the Benchmarks are rigged. The code they wrote for that one benchmark for in the top is a complete cheat. Check out the source and compare it with the other ones from the top NET is fast but Java is truthfully still faster. I've been using it exclusively on Linux since 2. Both running and developing.
That was implied. The original NET 2. Mono used a different versioning scheme IIRC. NET Core is main support for Linux for. The question was "at all. Yes, since 5 years. NET Core 1. Then use Kotlin, and take advantage of the jvm and the ecosystem, and avoid basically all the stuff you listed about the java language. I could list multiple, but a big one is that there are hundred java developers for each dotnet developer in my city.
The java env is well tested and well understood, if anything one should argue why not use it instead of a hip and trendy alternative. Their point about using. NET were not really valid since one of the big and best reason to use Java is that you already have a Java codebase, but things like value types and generics without type erasure aren't solved in Kotlin, so Kotlin isn't really a good answer to his not really valid point.
It's slower and has less features than the. So, your only credible excuse for using java is inertia from boomers and middle managers refusing to adapt from the standard of the early and mid s? If you come in and freely migrate all of the Java codebases to. NET while maintaining code quality and functionalities, I'm sure many people would let you do it.
If you don't understand why people stick to one language, that means that you've never worked on a big codebase, or completly ignore the business side of the developer job. In both cases, that's a lack of wisdom on your part. I guess you missed the 'new development' part of my original comment? Obviously it would be nonsensical to port a large extant codebase to a new language and tech stack if it's just being maintained.
Here is one real reason to prefer it over. In the past it has sent command line arguments and the path of the current working directory, among other things, according to comments on that issue.
Even if Microsoft doesn't intend to deliberately collect sensitive data, they don't seem to think it's worth putting much effort into preventing accidental data leaks from broken anonymization, unreliable opt-out mechanism, etc. Java is way better than.
Certainly not in enterprise. Lots of people use. NET in enterprise, I don't know where you got that impression. There's tons of. Case81 14 days ago [—]. My city has very little job listings requiring. NET for actual back-ends. Whereas, there are like a thousand Java jobs and almost half mentioning Spring. These discussions inevitably end up as a flame war sooner or later. Regardless, i actually compared Java with. NET and their web frameworks as a part of my bachelors', everything from synthetic benchmarks for encryption and data processing and transformations, to things like shuffling JSON around.
Now, it's all in Latvian and was a number of years ago, so it's not entirely relevant at this point, but i did have some tangible findings. In short: - both Java and. NET then Core are inconsistent in their performance - there are certain things which are slower in one technology than other by not using external optimized libraries.
NET Core had problems with handling large amounts of text - their performance was largely comparable in most other tests, neither was faster by a factor of 10, like you'd see with Python and Ruby compared to either - thus, it's largely a matter of choosing the actual frameworks that you'll want to utilize properly and consider both the job market and business factors familiarity with the tech stack, job market etc.
NET Core and now. NET 6 has improved bunches with its runtime; Core was so successful it's essentially the future of the platform i feel bad for developers who'll be tricked into working on legacy code with the old. If you jump around the different tabs that compare which frameworks do what better, on average: -. NET is better for plain text -. In short, you're not necessarily wrong - there have indeed been great improvements to the. But you're also not right: Java is getting similar attention, even though it's still lagging behind a few years in regards to "having its stuff together" e.
NET versions. To lighten the mood, i'd consider suggesting that anyone also have a look at Go, which is similarly performant and allows you to build runtime independent executables by default, which is easier than in either.
NET or Java. It's also pretty easy to write and has seen good use for the development of tools, since its startup time is a tad better than either that of Java or. NET as well. As if implementing value types in a backwards compatible way that also modifies generics to work with them would be a trivial task..
All of this is currently being implemented in project Valhalla I never buy into the tech stack argument that things are being worked on e. Seen this argument used on a number of different technologies. It compares a future state to a current state to put the favored tech the future state in an equal or better position.
It usually punishes innovative platforms as well; because it dismisses any reason to take them up. It's comparing apples to oranges - in this case. NET is also being actively worked on so may have other things by then. Compare current state only. The truth is each platform has prioritized features relevant to its context. For what its worth in my experience while the JVM has many more JIT optimisations and the like it tends to need them more of them given the lack of some of those features you mention e.
NET code allows value types, better management of memory i. Span , reified generics etc so the focus has been to allow the user to optimise themselves where required where still allowing for a decent performance default.
Many of the optimisations in the JVM wouldn't have the same bang for buck in. NET and vice versa. On a personal note I'm more of a fan of the. NET philosophy because the code is usually fast enough, and when I need to tune memory, avoid allocations, and do fast code it seems to offer more tools not in an unsafe context to do so.
Many benchmarks where the same level of application optimisation has occured from what I seen have confirmed this bias for me. Oracle builds and publishes OpenJDK builds at jdk. Binaries are only published for the first six months after a major release. I used to download and install Java manually. The project aims to make it as easy as possible for you to install Java. If you run sdk install java , it installs Azul Zulu 8. This is because java. It works, and I love using it! However, I can only use Java 11 when working on Spring Boot 2.
Les Hazlewood is a senior architect at Okta. Micah Silverman is a technical instructor at Okta. My career seems to have lead down the path of build tools and web security. This has also forced me to support using JVMs on a variety of systems. The first thing I ever wrote was an applet for the SyFy Channel SciFi back then that was an online Ouija board where the answers you got were from a dictionary of SF, horror and fantasy terms.
I took a sharp turn from there into large banking and insurance companies, all of which became Java shops fast. Micah Silverman : I love the way the language and community continue to adapt and evolve over the years. There seems to be an "Is Java dead? There was a time when Java was first released for Linux that it only supported "green threads".
These were virtualized threads and the performance was terrible. There were lots of "Java will die" articles during this period. Run the Program Install and Uninstall troubleshooter to repair the corrupted registry keys that prevent programs from being completely uninstalled, or blocks new installations and updates.
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