IntelliJ - The selected directory is not a home for JDK

Question

Similar to this question IntelliJ, "The selected directory is not a home for JDK", I am getting an error that my JDK directory suddenly is not valid.

Even though my JDK directory looks fine to me and worked last time I loaded IntelliJ

So I am selecting a valid JDK directory and yet still I get this error.

What could cause this? What could fix this?

Funeral

How did you install jdk/java? – Ravenravening

@Ravenravening I downloaded the JDK from oracle's web site. – Funeral

Question was how did you install it? Have you just extracted the jdk directory just out of java installer file? or did you install normally following the installer wizard. – Ravenravening

Double click and installed it as admin. I'll try reinstalling it just in case (but tomorrow, I need to wait for a process to finish) – Funeral

Can you check if you have tool.jar, 'rt.jar' files in JAVA_HOME/lib directory? – Ravenravening

You were right -- somehow the tool.jar went missing. I am perplexed. This solved the problem though -- reinstalling JDK 1.7_80. If you submit this as your answer I will accept it. – Funeral

Answer 1

That is because of tool.jar and/or rt.jar file(s) being missed from JAVA_HOME/lib directory.

Reinstalling java can resolve this issue.

Ravenravening