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

Question

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 ex

Answer 1

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

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