I am trying to set up my development environment to contribute to Elasticsearch. I have forked the repo, cloned it to my machine, and have run the 'idea' target with gradle. When I run './gradlew clean build' I see this message:
FAILURE: Build failed with an exception. * Where: Build file 'C:\Users\alici\IdeaProjects\elasticsearch\benchmarks\build.gradle' line: 31 * What went wrong: A problem occurred evaluating project ':benchmarks'. > Failed to apply plugin [id 'elasticsearch.build'] > the environment variable JAVA9_HOME must be set to a JDK installation directory for Java 1.9 but is [C:\Program Files\Java\jdk-10.0.1] corresponding to [1.10] * Try: Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights. * Get more help at https://help.gradle.org Deprecated Gradle features were used in this build, making it incompatible with Gradle 5.0. See https://docs.gradle.org/4.7/userguide/command_line_interface.html#sec:command_line_warnings BUILD FAILED in 33s
I have set the JAVA9_HOME to where Java 10 is installed intentionally to see if I could get around this error but it will still ask for Java 9. My problem is that I'm unable to download Java 9 from Oracle without creating an account with them. Can someone recommend the version of JDK 9 that they are using for this project or a way to use only Java 10 instead of additionally installing Java 9?