Camel JBang Launcher

Available as of Camel 4.13

This module provides a self-contained executable JAR that includes all dependencies required to run Camel JBang without the need for the JBang two-step process.

The launcher uses Spring Boot’s loader tools to create a self-executing JAR with a nested structure, similar to Spring Boot’s executable JARs. This provides better performance and avoids classpath conflicts compared to traditional fat JARs.

Downloading

You can download the camel-launcher JAR from Maven Central.

Using the fat-jar directly

Then you can run the JAR using standard Java as follows:

java -jar camel-launcher-<version>.jar [command] [options]

For example:

java -jar camel-launcher-<version>.jar version
java -jar camel-launcher-<version>.jar run hello.java

Using the distribution (recommended)

Extract the distribution archive:

unzip camel-launcher-<version>-bin.zip
# or
tar -xzf camel-launcher-<version>-bin.tar.gz

And then use the provided scripts:

# On Unix/Linux
./bin/camel.sh [command] [options]

# On Windows
bin\camel.bat [command] [options]

Benefits of using Camel Launcher

  • No need for JBang installation

  • Single executable JAR with all dependencies included

  • Faster startup time (no dependency resolution step, on-demand class loading)

  • Better memory usage (only loads classes that are actually used)

  • Avoids classpath conflicts (dependencies kept as separate JARs)

  • Each self-executing JAR is its own release, avoiding version complexity

  • Can still be used with JBang if preferred

More Information

See the general Camel JBang documentation.

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