This is an auto-update system for Java that hopes to be simple to integrate and use. The library is designed to be thread-safe and should even handle multiple VMs updating simultaneously. It uses threads internally to provide a more capable API, and you should watch for bad access if you use it in a GUI framework.

It is licensed under the Apache License v2.0.

Work so far was sponsored by IDOS AE GmbH. When setting out, my goal was to create an auto-updater that did not force me to depend on a major framework, or required my dependencies to be signed.

Current Topic of Interest

Testing the new zip support in a real-life application.

Maven Coordinates

The project is in Maven Central at de.idos.updates:updates-core:1.2.0

To Build

• You need JDK 6
• Run gradlew build
• Distribute through gradlew uploadArchives (Sonatype registration required)

To Use

1. Instantiate a Configurator and use its API to create a configuration file.
2. Put the resulting file on the classpath or into your working directory.
3. Pull the latest update and then launch the main method (e.g. Demo.startDemo()):

    String mainClass = "de.idos.updates.Demo";
    String mainMethod = "startDemo";
    UpdateSystem updateSystem = new ConfiguredUpdateSystemFactory().create();
    updateSystem.reportAllProgressTo(new ConsoleReport());
    updateSystem.checkForUpdates().updateToLatestVersion();
    File versionFolder = updateSystem.getFolderForVersionToRun();
    new ApplicationLauncher(versionFolder).launch(mainClass, mainMethod);

For a more complex example that can also cope with IDEs, please refer to the demo module.

Changelog

v1.2.0

• API-CHANGE: Uses the full base-URL to discover and download updates.
• No longer expects updates to reside at "./updates".
• Java 6 required (once again)

v1.1.0

• Unpacks zipped archives in the update fileset automatically
• Uses HEAD requests to get the file size, saving bandwidth and server load.

v1.0.1

• Java 6 required (instead of Java 7)

v1.0.0

• Initial Release
• Discovers new versions
• Downloads and installs updates
• Dynamic classloading
• Java 7 required