Unable to build community edition on Windows 11: Cannot find a Java installation

[d.boy.jq]

I’ve installed open jdk 11, set JAVA_HOME and add java bin path to %PATH%. Then I open a command prompt window and run this command: gradlew hivemqZip.

This is what I get and seems like it complains jdk is not found:

FAILURE: Build failed with an exception.

• What went wrong:
  Could not resolve all dependencies for configuration ‘:buildSrc:buildScriptClasspath’.

Could not resolve project :buildSrc.
Required by:
project :buildSrc
Failed to calculate the value of task ‘:buildSrc:compileJava’ property ‘javaCompiler’.
Cannot find a Java installation on your machine matching this tasks requirements: {languageVersion=8, vendor=any vendor, implementation=vendor-specific} for WINDOWS on x86_64.
No locally installed toolchains match and toolchain download repositories have not been configured.

BUILD FAILED in 28s

This is my java version:
java --version
openjdk 11 2018-09-25
OpenJDK Runtime Environment 18.9 (build 11+28)
OpenJDK 64-Bit Server VM 18.9 (build 11+28, mixed mode)

[Daria_H]

Hi @d.boy.jq, welcome to the HiveMQ Community!

If you’re running into issues building HiveMQ CE, you can skip the build process and download the pre-built version instead:

Download HiveMQ CE 2025.1

This way, you can start using HiveMQ right away without needing to troubleshoot the build. Let us know if you have any other questions!

Best,
Dasha from The HiveMQ Team

[d.boy.jq]

Thanks @Daria_H . My goal is to build HiveMQ from scratch. Is this the right place to get support for build issues? Do I need to open an issue on your Github?

[Diego]

Hi @d.boy.jq

Could you please download and install this OpenJDK version on your Windows computer and give it a try?

During installation, make sure to set the JAVA_HOME environment variable properly.

Kind regards,
Diego from HiveMQ Team