running Scala REPL: JAVA_HOME is not set correctly

dedpul · 2024-10-03 06:56:21

I tried many things, idk where to begin troubleshoot

❯ java -version
openjdk version "22.0.2" 2024-07-16
OpenJDK Runtime Environment (build 22.0.2+9)
OpenJDK 64-Bit Server VM (build 22.0.2+9, mixed mode, sharing)

❯ scala
Error: JAVA_HOME is not defined correctly.
  We cannot execute /home/tarun/.cache/coursier/arc/https/github.com/adoptium/temurin11-binaries/releases/download/jdk-11.0.24%252B8/OpenJDK11U-jdk_x64_linux_hotspot_11.0.24_8.tar.gz/jdk-11.0.24+8/bin/java

it was running just fine a few days ago
Any help is appreciated

Last edited by dedpul (2024-10-03 07:00:48)

Lone_Wolf · 2024-10-03 10:10:48

Java on archlinux doesn't use JAVA_HOME, unless you set it yourself somewhere it will be empty .

Please post the output of archlinux-java status .

dedpul · 2024-10-03 11:26:02

Lone_Wolf wrote:

Java on archlinux doesn't use JAVA_HOME, unless you set it yourself somewhere it will be empty .
Please post the output of archlinux-java status .

I've tried all

❯ archlinux-java status
Available Java environments:
  java-11-openjdk
  java-17-openjdk
  java-21-openjdk
  java-22-openjdk (default)

Lone_Wolf · 2024-10-04 09:37:55

Ok, the error suggests scala is looking specifically for java 11 .
Let's try to "teach" scala to find java 11.

Please create a script with

#!/bin/sh

export PATH="/usr/lib/jvm/java-11-openjdk/bin/:$PATH"
exec /path/to/application "$@"

as content .
If that fails also, try adding

export JAVA_HOME=/usr/lib/jvm/java-11-openjdk

before the exec .

https://wiki.archlinux.org/title/Java#L … va_version

WorMzy · 2024-10-04 09:46:03

Mod note: Moving to AUR Issues.

dedpul · 2024-10-04 10:51:01

Lone_Wolf wrote:

Ok, the error suggests scala is looking specifically for java 11 .
Let's try to "teach" scala to find java 11.
Please create a script with
#!/bin/sh

export PATH="/usr/lib/jvm/java-11-openjdk/bin/:$PATH"
exec /path/to/application "$@"
as content .
If that fails also, try adding
export JAVA_HOME=/usr/lib/jvm/java-11-openjdk
before the exec .
https://wiki.archlinux.org/title/Java#L … va_version

funnily enough adding JAVA_HOME like that works.
kill me now

Lone_Wolf · 2024-10-05 11:46:37

Glad I could help,

Please prepend [Solved] to the thread title (edit first post)

dedpul · 2024-10-05 16:03:24

Lone_Wolf wrote:

Glad I could help,
Please prepend [Solved] to the thread title (edit first post)

but if arch doesnt use it, why do i need to set it?
why did this happen anyway? I installed it using the instructions on Scala's official site.

and now sbt is broken too...

Lone_Wolf · 2024-10-05 16:51:06

Multi-platform applications targeting linux often make assumptions about the setup they encounter.
Typically they (try to) support .deb & rpm installs.

Archlinux does things differently and adjustments are often necessary to get things to run.

I have no idea what went wrong on your scala install, but there is a wiki page for scala and an aur package that is actively maintained.

See https://wiki.archlinux.org/title/Scala

If you're unfamiliar with AUR, read https://wiki.archlinux.org/title/Arch_User_Repository.

Arch Linux

#1 2024-10-03 06:56:21

running Scala REPL: JAVA_HOME is not set correctly

#2 2024-10-03 10:10:48

Re: running Scala REPL: JAVA_HOME is not set correctly

#3 2024-10-03 11:26:02

Re: running Scala REPL: JAVA_HOME is not set correctly

#4 2024-10-04 09:37:55

Re: running Scala REPL: JAVA_HOME is not set correctly

#5 2024-10-04 09:46:03

Re: running Scala REPL: JAVA_HOME is not set correctly

#6 2024-10-04 10:51:01

Re: running Scala REPL: JAVA_HOME is not set correctly

#7 2024-10-05 11:46:37

Re: running Scala REPL: JAVA_HOME is not set correctly

#8 2024-10-05 16:03:24

Re: running Scala REPL: JAVA_HOME is not set correctly

#9 2024-10-05 16:51:06

Re: running Scala REPL: JAVA_HOME is not set correctly

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