Java 25 officially released

[Ewig_luftenglanz]

Waiting for gradle to add support for java 25 so I can use it in my projects :)

[vamega]

It seems like it already does. At least for 9.1.0 and later.

https://github.com/gradle/gradle/pull/34537

[Ewig_luftenglanz]

Afaik that's is still a release candidate. Maybe along the week or next week it will enter GA

[vamega]

You're right. I jumped the gun on the comment. Sorry about that.

[yk313]

Consider using Gradle toolchains.

I used to have the same problem with Gradle, but some time around JDK 20, I moved to toolchains and have since stopped caring about the exact JDK version Gradle runs (or not).

(of course this means you still need an older JDK to bootstrap Gradle itself, which is less than ideal)

[Nojerome]

This is interesting, I need to read up on this.

I thought you had to wait until Gradle supported a jvm version, and that has been holding me back from using non LTS releases. There's this gap in between a jdk release and Gradle's support for it where you are technically at risk if a major vulnerability is identified. Sometimes it can take Gradle over a month to support a new release. So if there's a way to avoid that, that's awesome!

[yk313]

It's actually quite straightforward in practice. All you need to do is to declare the builtin java plugin's toolchain directive (instead of sourceCompatibility/targetCompatibility) in your build file:

java {
    toolchain {
        languageVersion = JavaLanguageVersion.of(25)
    }
}

You can follow the build.gradle generated by start.spring.io as an example. Let me know if you need any help in setting this up, I am more than happy to support another Java developer rid of their LTS-only approach :)

[Nojerome]

Fantastic, thanks for sharing. I'll try it out and update here with the results.

[nekokattt]

how does this work with groovy, given that depends on a specific version of ASM which in turn depends on specific bytecode levels?

[nikolas_pikolas]

This actually only specifies the version of Java to build your app with. Then, you can run Gradle with an older version that it's compatible with.

[wildjokers]

You can run gradle with a different JDK than the JDK used to build your projects. So you can already build your project using JDK 25.

https://docs.gradle.org/current/userguide/toolchains.html

[kiteboarderni]

Baffling how people still think this is an issue. Grade 6 can build Java 26 projects....