How to install jdk source on fedora 29

edit

I need reference it to my Eclipse IDE.

I have installed the following java packages:

[root@localhost ~]# dnf list installed java-*
Installed Packages
java-1.8.0-openjdk.x86_64               1:1.8.0.191.b12-11.fc29         @updates
java-1.8.0-openjdk-devel.x86_64         1:1.8.0.191.b12-11.fc29         @updates
java-1.8.0-openjdk-headless.x86_64      1:1.8.0.191.b12-11.fc29         @updates
java-1.8.0-openjdk-src.x86_64           1:1.8.0.191.b12-11.fc29         @updates
java-11-openjdk-headless.x86_64         1:11.0.1.13-4.fc29              @updates
java-openjdk-headless.x86_64            1:11.0.1.13-8.rolling.fc29      @updates
[root@localhost ~]# 

And I am currently using java-1.8.0-openjdk:

[root@localhost ~]# alternatives --config java

I need the source for java-1.8.0-openjdk.