Does Eclipse Neon support Java 9? I know Eclipse Oxygen can be used but we have some constraints to not use other Eclipse than Neon.
We are using Maven for Building our J2EE project and Git for source control.
I appreciate if you can back your answer with some links/proofs. Thanks!
Does eclipse Neon support Java 9?
It depends what you mean by "support". If you mean "Is the use of Java 9 officially supported with Neon?" then the answer is no. For example, see this DZone article:
You need an Oxygen-based install of Eclipse – ensure you’re using the
R version and not milestone or integration builds.
Also, from Eclipse's site:
Users who install Eclipse Oxygen 4.7.1a are able to launch with Java 9
and get Java 9 support
But if you mean "Is it possible to get Java 9 running under Neon?" then the answer is yes. Here's a snippet from an article titled Eclipse Java™ 9 Support (BETA) for Neon from a brave soul who did it back in 2015!...
I downloaded the early access version of Java 9 JDK from java.net in
the form of a tar.gz file that I decompressed into a local directory:
/home/apps/jdk1.9.0. I made no other changes to my system.
I downloaded the Eclipse SDK 4.6 (Neon) M2 from the Eclipse Platform
downloads and decompressed it into its own directory. I made a small
change to the eclipse.ini file to make the new configuration run using
the Java 9 runtime...
Of course, that was done with an early access release of Java 9, and I wouldn't automatically assume that Neon will still work with the latest release of Java 9.
~~~~~~~~~
Update:
I just noticed this SO question titled Neon: how to run on jdk9? which may offer further useful information.
I have installed java 8 ,Eclipse Kepler and Python34.Now i have installed Pydev through EClipse>>Help>>install new software but it is not showing in File >>New Project or Windows>> Open Perspective. I have installed Pydev many time but it's not showing and i have seen also many of stack over flow but still iy's not working.
please crosecheck that Eclipse take Java 8 version only .because pydev needs Java 8 version. Even if you installed java 8 in your system. But check that the Eclipse took Java 8 version nothing else.If not then uninstall the eclipse and again install it so that it will take system java 8 version.
After this if still issue persist, then try with Eclipse Luna. I am facing the same issues.Now it is working for me.
I want to start using Java 8 with Eclipse but I don't know how to install it - I can't find any tutorials on it. I am using Eclipse Kepler and have added a JRE for JDK 8 to the IDE but it won't let me continue to create the project because of a compliance problem with the JRE versions. How can I use Java 8 with the Eclipse Kepler IDE?
Have a look at this bug report from time to time for progress on Java 8 in Eclipse's JDT.
EDIT: For Kepler you need SR2 (4.3.2) and the Java 8 feature patch. Starting with I20140318-0830 all Luna (4.4) builds contain support for Java 8 "out-of-the-box". The final version of Eclipse Luna (4.4) will be released at the end of June 2014.
Now, after Java 8 is released, there is a feature patch, but only for Kepler SR2 (4.3.2). Installation via
Help > Install New Software... > 'Work with': http://download.eclipse.org/eclipse/updates/4.3-P-builds/
see Tutorial Installing Java 8 on Eclipse Kepler
Early access builds of Eclipse with Java 8 support are available. Installation instruction can be found here.
Wayne Beaton (Director of Open Source Projects at the Eclipse Foundation) just published (February 2014) an article on "Building and Running Java 8 Support" (with Eclipse Luna 4.4Mx).
It includes:
Getting the sources of JDK8
Downloading the latest milestone of the Eclipse SDK (4.4Mx)
Configuring the “vm” option in the eclipse.ini file to use the Java 8 JRE included with the downloaded JDK.
Adding Egit
Clone the BETA_JAVA8 branch of the Git repo JDT Core, JDT UI and JDT Debug repos.
Using the handy “Import all projects” feature to automatically pull all the code into my workspace.
Setting various JRE 1.4, 5 and 6.
Putting the right mapping for those JRE in the execution environment.
For Eclipse Kepler 4.3+, leeor mentions in the comments:
As of Feb 21st, you can install the beta 8 JDT via "install new software..." in Eclipse (I use Kepler) here: JDT/Eclipse Java 8 Support (BETA)
http://build.eclipse.org/eclipse/builds/4P/siteDir/updates/4.3-P-builds
Java8 support for Eclipse Kepler SR2 has been removed from eclipse marketplace. You can access the archive here. Download the zipped repo and install it as a local archive update site.
URL : http://download.eclipse.org/eclipse/updates/4.3-P-builds/
Add it like the screenshot
I am assuming that you have installed Java 8, JRE 8 and configured them (setting class paths etc.).
Follow the steps.
Go to Help->Eclipse market place
In the search box type "java 8 kepler"
The first link that appears is Java 8 support for Kepler SR2
select it and install it.
It will take a few minutes.
You may need to restart Eclipse after completion.
The problem is that the version of Kepler your using might not have the support for Java8. You can either install the Java8 Patch from market place if your using SR2 version
or
You can directly download Eclipse Kepler SR2 from here, which comes with default support for Java8
I'm trying to use new feature of JRE8 like lambda expression but it causes an error. Is it because my IDE's version not supported? Here is my version of Eclipse.
Eclipse Java EE IDE for Web Developers.
Version: Kepler Service Release 1
Build id: 20130919-0819
Eclipse Kepler does not support the new Java 8 features. The Eclipse Newsletter says there is scheduled to be an update to the Eclipse JDT (Java Development Tools) when Java 8 is released in March.
There is some more detail on the JDT Java 8 Wiki
I wish to find out does anyone have problem compiling JDK 7 code with Eclipse? Because currently I only able use JRE 7 in Eclipse to test run but as for trying to use JDK 7 features into my code, it will state it will not support.
Eclipse 3.8 M1 (Juno) is the earliest stable version to have support for Java 7. Java 7 support will also be available in the upcoming 3.7.1 release.
Unfortunately, since Java 7 released after Eclipse 3.7 (Indigo) release, the Java 7 support could not make it to 3.7.