Oracle releases Java 10.0 just 6 months after Java 9.0

[AlTech]

Oracle has officially released Java 10.0, the successor to Java 9.0 .

 

Java 10.0 contains some exciting new features. Many of which seem to address the biggest issues with Java, the JVM and garbage collector.

 

Quote

• Local variable type inference, to enhance the Java language to extend type inference to declarations of local variables with initializers.
• Parallel full garbage collection for the G1 garbage collector, to improve worst-case latencies.
• Application class-data sharing to optimize startup time and footprint. The existing Class-Data Sharing feature is extended so application classes can be placed in the shared archive.
• An experimental just-in-time compiler, Graal, can be used on the Linux/x64 platform.
• Docker awareness. When running on Linux systems, the Java Virtual Machine (JVM) will know if it is running in a Docker container. Container-specific information—the number of CPUs and total memory allocated to the container—will be extracted by the JVM instead of it querying the operating system. (The number of CPUs available to the Java process is calculated from specified sets, shares or quotas of processors.)
• Three new JVM options, to give Docker container users greater control over system memory.
• A bug fix to correct the attach mechanism when trying to attach from a host process to a Java process that is in a Docker container.
• Shorter startup times for the jShell REPL tool, particularly when a start file with many snippets is in use.
• New APIs to better enable creation of unmodifiable collections. The copyOf,Set.copyOf, and Map.copyOf methods create new collection instances from existing instances. New methods toUnmodifiableList, toUnmodifiableSet, and toUnmodifiableMap were added to the Collectors class in the Stream package, allowing the elements of a Stream to be collected into an unmodifiable collection.
• A local-variable type inference, to enhance the language to extend type inference to local variables. The intent is to reduce the “ceremony” associated with coding while maintaining a commitment to static type safety.
• A clean garbage collector interface to improve source-code isolation of different garbage collectors. The goals for this effort include better modularity for internal garbage collection code in the HotSpot virtual machine and making it easier to add a new garbage collector to HotSpot.
• Parallel full garbage collection for the G1 garbage collector. The intent is to improve worst-case latencies by implementing parallelism.
• Enabling HotSpot to allocate the object heap on an alternative memory device, such as an NVDIMM memory module, specified by the user. This feature envisions that future systems may have heterogeneous memory architectures.
• Enabling the Grall Java-based just-in-time compiler to be used in an experimental fashion on the Linux/x64 platform.
• Consolidation of the repositories of the JDK forest into a single repository, to streamline development. The code base until now has been broken into multiple repos, which can cause problems with source-code management.
• Application class-data sharing, to reduce the footprint by sharing common class metadata across processes. Startup time is improved as well.
• Thread-local handshakes, for executing a callback on threads without performing a global VM safepoint. Individual threads could be stopped instead of either all threads or no threads.
• Provision of a default set of root certificate authority certificates in the JDK. The goal is to open-source root certificates in Oracle’s Java SE Root CA program to make OpenJDK builds more enticing to developers.

 

So yeah, cool beans. I totally didn't know this was released until I was installing Java JDK 9. Now I'll have JDK 8, 9, and 10 installed . Oh well....

 

 

Sources:

https://www.infoworld.com/article/3230507/java/java-jdk-10-what-new-features-to-expect-in-the-next-java.html

https://www.oracle.com/corporate/pressrelease/Java-10-032018.html

[Murasaki]

*clap* still dont have a reason to install it though

[Guest Generallee]

31 minutes ago, AluminiumTech said:

snip

Is this the language of an ancient alien civilization ? truly mesmerizing and cryptic

 

 

[AlTech]

25 minutes ago, Ross Scarlet said:

*clap* still dont have a reason to install it though

Lol. Only reason I have it is cos Android Development and also cos two of my uni modules are on Java lol.

[colonel_mortis]

Nothing big, but good changes none the less. It seems odd to me that Oracle has switched to a 6 month release cycle though (which is what has happened), when Java 7 still seems to be around for some enterprise uses - some people just don't upgrade.

Java 9 has also reached end of life - it's not being supported concurrently with 10.

[bcredeur97]

I guess my only question is.... is java any less "slow"?

That's always been my biggest gripe with it... stuff that uses it is always so dog gone slow... and wasteful with resources.

*Cough* *cough* Think or Swim *cough*

[leadeater]

4 minutes ago, bcredeur97 said:

I guess my only question is.... is java any less "slow"?

That's always been my biggest gripe with it... stuff that uses it is always so dog gone slow... and wasteful with resources.

Also the tendency for it to go "Oh you have ram, I'll take it"... "Oh you needed some for the OS to function properly, oh well too late".

[Misanthrope]

I'm still not fully patched from Java 90 that conveniently broke certain versions of Oracle's own EBS suite and looks like there's no point in me requesting IT to fix shit anyway since it would probably set me up with a fresh set of compatibility issues.

 

*sigh*

 

You might think this is hyperbole or anecdotal on my part but I think this is representative of your average Java experience: incompatibility and regressions, often with your own products up to an including Oracle's own ERP shit.

[programmer]

I guess this is a thing...that I probably won't see anyone use? I honestly used to loved Java and remember being excited for new releases, but Oracle makes me sad. And Java still being a monolith seems nuts compared to JavaScript where you can just paper over the bad parts and can go as light or heavy with libraries and frameworks as you want.

[Guest]

I still use Java 6 for some things

[Beskamir]

Can we finally just have Java die and get replaced by C#?

[Techstorm970]

11 hours ago, AluminiumTech said:

Oracle has officially released Java 10.0, the successor to Java 9.0.

Whoa WTF?  I'm still on Java 8!  And why didn't I hear about 9 when it came out?!

Quote

"...just 6 months after Java 9.0"

Oracle, calm yourself!  You've been getting kinda hyperactive lately!  

[MimigaKing]

Still won't upgrade because Modded Minecraft only support Java 8. 

 

Thanks but no thanks Oracle

[AlTech]

3 hours ago, MimigaKing said:

Still won't upgrade because Modded Minecraft only support Java 8. 

 

Thanks but no thanks Oracle

Minecarft Java Edition has it's own version of Java installed which is updated independantly by Mojang.

[yian88]

19 hours ago, bcredeur97 said:

I guess my only question is.... is java any less "slow"?

That's always been my biggest gripe with it... stuff that uses it is always so dog gone slow... and wasteful with resources.

*Cough* *cough* Think or Swim *cough*

Its funny how people hate java for no reason, if fact you hate because of bad developers who never learned to use java.

I learned java just recently(december till now) and i did all the possible mistakes allocating on update and other stupid shit. It imediately became very obvious you need to cache everything in java, thats why you lose performance. And in order to reduce memory usage you have to tune the JVM with certain options and you can reduce ram usage drastically.

By default which is what most developers do is not providing any tuned JVM parameters and you get something like 200mb ram cached by JVM even for smallest programs, when in fact they only use as much as other GC'ed languages 5-20MB the rest is just reserved JVM heap cache. Im not expert anyway, the hate is unjustified, i know Oracle aint the best company but neither is Microsoft with their crappy C# that cant be used outside windows properly, and .NET core which is useless without visual studio, and the terrible "using" import model of C# is cancer.

 

My main criticism of java is Oracle didnt update the language fast enough(now they are but very late), they only provide certain features to linux for server stuff and dont really care for the language as a desktop app development tool, the JDK's/JRE's dont merge, each version needs all files installed which creates bloatware if you use multiple versions, they dont provide any meaning of code hiding trough AOT binary compilation(currently there's experimental AOT for linux only bleh), they dont provide built in way of distributing a Java app with minimal runtime embedded so the user shouldnt have to install JRE which is stupid in 2018 they need to learn from Go lang. No good free profilers.

Any solutions to above problems that costs $ dont count.

 

I kind of understand why people hate it but its a good language for backend servers where most of the things i mentioned dont matter.