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Java

Version management with mise

Java is managed by mise. The configured version is temurin-25 (Eclipse Temurin JDK 25), from mise/mise.utilities.toml.

mise install java           # install the configured version
mise use java@temurin-25    # set the active version
java --version              # verify

The mise config is at ~/.config/mise/config.toml; the module files under mise/mise.*.toml carry the tool pins.

jbang

jbang runs Java source files directly as scripts, with no build tool or project setup:

jbang script.java           # run a Java file as a script
jbang init hello.java       # create a new jbang script
jbang --java 21 script.java # run with a specific Java version

jbang is not currently installed — its mise entry is commented out in mise/mise.utilities.toml. Uncomment it (or brew install jbang) if you want it; it can also manage its own JDKs independently of mise.

Neo4j downloads

The download Fish function fetches Neo4j distribution tarballs by version:

download 5.25.0    # downloads neo4j-enterprise-5.25.0-unix.tar.gz

See fish.md for the full function list.