How Can I Specify a Custom JDK for My Gradle Project?

Gradle: Specifying Custom JDK

In a scenario where your Gradle application utilizes JavaFX and you require a specific JDK version, this guide will provide different approaches to specify the desired JDK.

Approach 1: Gradle.properties Variable

• Create a gradle.properties file in the .gradle directory within your home directory.

• Define the variable org.gradle.java.home as follows:

  org.gradle.java.home=/path_to_jdk_directory

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• Replace /path_to_jdk_directory with the location of the target JDK.

Approach 2: Build.gradle Configuration

• In your build.gradle file, add the following lines:

  compileJava.options.fork = true
  compileJava.options.forkOptions.executable = '/path_to_javac'

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• Set /path_to_javac to the path of the Java compiler within the desired JDK.

Other Options

• Define a system environment variable named JAVA_HOME_FOR_MY_PROJECT and point it to the desired JDK. You can then check for its value in your build.gradle script.

• Override the JAVA_HOME environment variable for the build context using the following syntax:

  JAVA_HOME=/my_special_jdk_path

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