How do I install java 25 to my server

Daylen_Troxel · October 5, 2025, 3:23am

OS Name/Version:Ubuntu 24.04.2

Product Name/Version: version 2.6.3 - 20250926.1

Problem Description: So I am currently trying to run the newest version of Greg Tech New Horizons on my server and it wont run on any java version on the server nor a server I set up on my pc but one I updated my pc java to 25 it instantly work and im wondering how I can port a version of java 25 into my AMP server

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Actions taken to resolve so far: I have tried to open a Java install file on the server but in the end I could not figure it out

KoKoS · October 5, 2025, 2:18pm

Use this for refference

Simon_Appleton · October 11, 2025, 6:13pm

I have the same problem, java -version when logged in as amp shows that 25 is installed, but AMP only lists up to 21. I have restarted etc.

Any solution?

Greelan · October 11, 2025, 9:00pm

Is the instance in docker?

Simon_Appleton · October 12, 2025, 2:04am

Yes it is - I can see temurin 8, 11, 17 and 21 as options in AMP, and java -version shows 25. But not 25 option in AMP

Greelan · October 12, 2025, 4:29am

Click on the pencil icon on the instance tile and change the image to cubecoders/ampbase:java-lts

Simon_Appleton · October 12, 2025, 5:04am

I stopped the instance, clicked pencil , and tried typing cubecoders/ampbase:java-lts in as the image (this was not one of the dropdown options), saved changed, started the instance, and Java 25 still did not show.

I repeated this, instead choosing cubecoders/ampbase:java from the dropdown. This didn’t work either.

I also tried both the above with a newly created test instance, and that didn’t work.

Greelan · October 12, 2025, 5:26am

The java-lts image has 25. I know, I created it

The java image does not

Simon_Appleton · October 12, 2025, 5:39am

java-lts does not appear in the dropdown menu.

Greelan · October 12, 2025, 5:52am

I know, it hasn’t yet been integrated into AMP’s code (I don’t have access to that code)

Type it in

Simon_Appleton · October 16, 2025, 2:56pm

Sadly it doesn’t work. Java is installed and shows in debian via java -version. It does not show in AMP instances, even with java-lts typed in.

JayJetstream · October 17, 2025, 2:05am

To add java 25 you should:

in Container settings - Container Packages press Add Package
type temurin-25-jdk

restart the instance

JayJetstream · October 17, 2025, 2:08am

after that, you will be able to choose java 25 in minecraft settings

Greelan · October 17, 2025, 5:16am

The right way is the way I posted originally, so that Java 25 does not have to be reinstalled every time the instance is started

Change the docker image to:
cubecoders/ampbase:java-lts

Simon_Appleton · October 17, 2025, 5:17am

Sadly, neither works. I have tried both (and also adding the package and putting the lts image in container image).

My java -version shows:

Greelan · October 17, 2025, 5:19am

Is docker even enabled for that instance?

Simon_Appleton · October 17, 2025, 5:20am

Greelan · October 17, 2025, 5:20am

Did you save changes?

What shows in the deployment log?

Simon_Appleton · October 17, 2025, 5:24am

Yes, changes saved:

06:13:10
Instance testing01 has stopped.
Slow method invocation: StopInstance took 5397ms to complete.
Slow response: ADSModule.StopInstance took 5398ms to complete.
06:13:57
java: Pulling from cubecoders/ampbase
Digest: sha256:d51660c20b716c9cc7c896cf4798cb385bc46a7b25dc379aac3769df6abcd959
Status: Image is up to date for cubecoders/ampbase:java
docker.io/cubecoders/ampbase:java
cd25befab768617a44559132df630b6ad00af9073542a3e53be57585ae62ff82
06:14:12
Managed remote instance testing01 at http://127.0.0.1:8090/
Authentication token 4a17ca179dfb for amp requested by ManageInstance on behalf of amp
06:14:24
Stopping instance testing01...
06:14:29
Instance testing01 has stopped.
Slow method invocation: StopInstance took 5118ms to complete.
Slow response: ADSModule.StopInstance took 5118ms to complete.
06:14:55
java: Pulling from cubecoders/ampbase
Digest: sha256:d51660c20b716c9cc7c896cf4798cb385bc46a7b25dc379aac3769df6abcd959
Status: Image is up to date for cubecoders/ampbase:java
docker.io/cubecoders/ampbase:java
06:14:56
98966770f0e07c1b017e21bfd28e850b9340b2516c08840ea452d7a503e93eeb
06:15:02
Managed remote instance testing01 at http://127.0.0.1:8090/
06:15:03
Authentication token 030b4217ffbe for amp requested by ManageInstance on behalf of amp
06:18:39
Stopping instance testing01...
06:18:44
Instance testing01 has stopped.
Slow method invocation: StopInstance took 5109ms to complete.
Slow response: ADSModule.StopInstance took 5109ms to complete.
06:18:51
java: Pulling from cubecoders/ampbase
Digest: sha256:d51660c20b716c9cc7c896cf4798cb385bc46a7b25dc379aac3769df6abcd959
Status: Image is up to date for cubecoders/ampbase:java
docker.io/cubecoders/ampbase:java
06:18:52
33feb829bcd8fe4627ae4cc635ddc34359ebcc8f325ff7196a87008e45cb6ebd
06:19:05
Managed remote instance testing01 at http://127.0.0.1:8090/
06:19:06
Authentication token 1be033b221e6 for amp requested by ManageInstance on behalf of amp
06:19:33
Managed remote instance testing01 at http://127.0.0.1:8090/
Authentication token 0982d6a67678 for amp requested by ManageInstance on behalf of amp

Greelan · October 17, 2025, 5:25am

It is still pulling the old java image

Is ampinstmgr up to date?
ampinstmgr version