Simplest way of using https://sdkman.io/ under Fish Shell — add the snippet from the file below to your ~/.config/fish/config.fish and call it a day! No more how to use sdkman with fish issues, a simple wrapper is all you need.

add_this_snippet_to_your_fish_shell_config.fish

# Simplest way of using https://sdkman.io/ under Fish Shell:
# Add the snippet from the file below to your ~/.config/fish/config.fish and call it a day!
# Note: while this trick works, it doesn't give you auto-completion options.

function sdk
    bash -c "source '$HOME/.sdkman/bin/sdkman-init.sh'; sdk $argv[2..-1]"
end