Support java 25

[Kirderf]

Maven - 3.9.9
Liberica JDK - 25.0.0-37
jib-maven-plugin - 3.4.6

ASM ClassReader complains about unsupported version in the newest java jdk 25.

I have looked at https://github.com/GoogleContainerTools/jib/blob/master/docs/faq.md#i-am-seeing-unsupported-class-file-major-version-when-building and fixed the issue on my end but ideally jib-maven-plugin should support ASM Class reader major version 69 and up.

here is my log:

log.txt

[armsargis]

btw asm used only to resolve main class, so if you set main class like:

container {
mainClass = 'mypackage.MyApp'
}

it will work

[thetric]

For Gradle, the Java 25 support seems to be blocked by #4414 which ensures compatibility with Gradle 9