[Feature] Pin Java major version rather than specific release

[abjugard]

As detailed in sdkman/sdkman-cli#1154 it would be great if one of the focus areas for the re-write were to add support for pinning a JDK vendor and major version rather than a specific release.

Maybe something like:

# Enable auto-env through the sdkman_auto_env config
# Add key=value pairs of SDKs to use below
java=17-tem

Which would resolve to whatever installed version exists of java with prefix 17 and vendor Temurin (tem), e.g. for me the current latest 17.0.14-tem which is what I have installed, and for a colleague it might be 17.0.12-tem.

Or if it's easier to support this using different keys, maybe:

# Enable auto-env through the sdkman_auto_env config
# Add key=value pairs of SDKs to use below
jdk=17
jdk-vendor=tem

These are just my suggestions, I don't really care exactly how it's configured, just that it would simplify management a lot if it were possible.

[xyam]

I agree with this syntax, I will need a generic scan on the major version and a vendor scan to avoid having to install all minor versions for example :
java=17..0.*
java-distribution=librca

[bengaywins]

I would go a few steps further, and it should allow for pinning at any semver level. Meaning you can do 17 or 17.* or 17.x.*. This would allow for flexibility in how a company decides to increment versions in releases. And this follows all the other tools like it that allow for this.

And as @xyam suggested, separating out the distribution would be ideal because parsing now becomes easier.