'Target is not a JDK root. System library was not found. Eclipse Oxygen 4.7 + Java9 error

I'm trying to test JDK9 (jdk-9-ea+147 version) with Eclipse Oxygen IDE.

I've installed jdk along with jre. From Eclipse Market Place I've installed Java9 Beta extension:

enter image description here

The problem is, when I'm trying to add new installed jre from Eclipse I get following error:

enter image description here

Interesting thing is that this error doesn't occur with installations of previous JDK versions:

enter image description here

Does anyone encounter simillar problem with Eclipse Oxygen? Any feedback is appreciated.

javaeclipsejava-9eclipse-oxygen


Solution 1:[1]

I've just successfully tested JDK9 with Eclipse Oxygen IDE following the approach you detailed.

Here are the details of my installation (under Windows 10):

enter image description here

Solution 2:[2]

I'm also faced this issue "Target is not a JDK root. System Library was not found" for Java 11 and I have done some workaround and got to know, this is related to the version we are using either eclipse or sprint tool suite. So i figured out the correct version and posted below.

Java 9 Supports:

  • Spring Tool Suite:3.9.0
  • Eclipse:Oxygen (4.7)

Java 10 Supports:

  • Spring Tool Suite:3.9.4

  • Eclipse: Oxygen (4.7.3) and Above

Java 11 Supports:

  • Spring Tool Suite: 3.9.7
  • Eclipse: Photon 4.8, 4.10 (officially supports)

Below are references i used:

  1. STS
  2. Eclipse

Click Up Vote if this is useful for you.

Solution 3:[3]

This looks like Eclipse bug 494481.

Unfortunately there is currently no fix or workaround listed for the bug.

Solution 4:[4]

set the path to:: /Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home

Solution 5:[5]

You should use Standard VM not standard 1.1x VM best regards! se pic

Solution 6:[6]

Oxygen does not come with java9 support. You need to install the eclipse Java9 support patch from the market place https://marketplace.eclipse.org/content/java-9-support-beta-oxygen to be able to use Java9 or you can update from "Help" menu bar.

Ref - https://bugs.eclipse.org/bugs/show_bug.cgi?id=509704

Solution 7:[7]

I was facing the same problem for the latest JDK."jdk-18_windows-x64_bin.exe" However it is resolved by installing this eclipse https://www.eclipse.org/downloads/download.php?file=/oomph/epp/oxygen/R/eclipse-inst-win64.exe.

Give it a try, I hope this will work for you too! Cheers!

Sources

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Source: Stack Overflow

Solution Source
Solution 1
Solution 2 Community
Solution 3 greg-449
Solution 4 rabi
Solution 5 Beqir Kuçi
Solution 6 Saheb
Solution 7 nams

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