Install Java 11

This is an environment setup step and is only required the first time you write a plugin on your computer.

Plugins for Funnelback are written using Java 11. This must be installed in order to develop a plugin for use with Funnelback.

Downloading Java 11 JDK

  1. Open your web browser and visit the Java site. https://adoptopenjdk.net/?variant=openjdk11&jvmVariant=hotspot

  2. Download OpenJDK 11 (LTS) for your operating system and choose the HotSpot JVM.

    You must use Java 11 and not a newer version as this is the version used by Funnelback. Other versions of Java (both newer and older) will not be fully compatible.
    install_java.png
  3. Install Java by running the installer.

Ensure that java is on your path

After installing java, it should now be available on your path.

  1. Open a terminal or command prompt and run:

    java --version

    A message similar to the one below should be displayed if Java was successfully installed:

    openjdk 11.x.y <date>
    OpenJDK Runtime Environment AdoptOpenJDK (build 11.x.y+z)
    OpenJDK 64-Bit Server VM AdoptOpenJDK (build 11.x.y+z, mixed mode)

Next steps

The next tutorial covers the installation of Apache Maven.

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