Java homes not found for default install of java on Fedora #25298
Description
I have open jdk via the Fedora repos and hotspot via the Oracle RPMs.
Oracle put it in /usr/java/
ll /usr/java
drwxr-xr-x. 9 root root 4.0K Jun 21 07:01 [1] jdk1.8.0_172-amd64
lrwxrwxrwx. 1 root root 16 Jun 21 07:01 [2] default -> /usr/java/latest
lrwxrwxrwx. 1 root root 28 Jun 21 07:01 [3] latest -> /usr/java/jdk1.8.0_172-amd64
OpenJDK packages put it in /usr/lib/jvm
ll /usr/lib/jvm/
drwxr-xr-x. 3 root root 4.0K Mar 29 15:21 [1] java-1.8.0-openjdk-1.8.0.162-3.b12.fc28.x86_64
drwxr-xr-x. 7 root root 4.0K Jun 28 08:12 [2] java-1.8.0-openjdk-1.8.0.172-9.b11.fc28.x86_64
lrwxrwxrwx. 1 root root 32 Jun 28 08:13 [3] java-1.8.0 -> /etc/alternatives/java_sdk_1.8.0
lrwxrwxrwx. 1 root root 40 Jun 28 08:13 [4] java-1.8.0-openjdk -> /etc/alternatives/java_sdk_1.8.0_openjdk
lrwxrwxrwx. 1 root root 24 Jul 3 07:57 [5]
lrwxrwxrwx. 1 root root 34 Jun 28 08:13 [6] java-openjdk -> /etc/alternatives/java_sdk_openjdk
lrwxrwxrwx. 1 root root 27 Jun 28 08:13 [7] jre-1.8.0 -> /etc/alternatives/jre_1.8.0
lrwxrwxrwx. 1 root root 35 Jun 28 08:13 [8] jre-1.8.0-openjdk -> /etc/alternatives/jre_1.8.0_openjdk
lrwxrwxrwx. 1 root root 50 Jun 18 17:54 [9] jre-1.8.0-openjdk-1.8.0.172-9.b11.fc28.x86_64 -> java-1.8.0-openjdk-1.8.0.172-9.b11.fc28.x86_64/jre
lrwxrwxrwx. 1 root root 29 Jun 28 08:13 [10] jre-openjdk -> /etc/alternatives/jre_openjdk
Creating a symlink in /usr/lib/java for java-8-akka -> /usr/lib/jvm/java-1.8.0/ makes the build work.
We need some more regexing :)