Error: module not found for Apache Commons Math (commons-math3) when using Gradle and Java modules

Question

I'm working on a Java 17 project using Gradle with the Java module system, and I'm encountering an issue when trying to include the Apache Commons Math (commons-math3) library in my project.

What I am trying to do: I have a 'module-info.java' file where I'm trying to add the following dependencies:

java
module com.example {
    requires org.apache.pdfbox;
    requires org.apache.poi.ooxml;
    requires commons.math3;
    requires org.apache.commons.collections4;
    exports org.example;
    }

In my build.gradle, I have the following dependencies declared:

dependencies {
        implementation 'org.apache.pdfbox:pdfbox:2.0.30'
        implementation 'org.apache.poi:poi-ooxml:5.3.0'
        implementation 'org.apache.commons:commons-math3:3.6'
    }

When I try to build the project using gradle build or run it via IntelliJ, I get the following error:

error: module not found: commons.math3
        requires commons.math3;

Checking if the dependency is downloaded correctly with gradlew dependencies.

Answer 1

module-info.java

• Change exports org.example; to exports com.example;.

module com.example {
    requires org.apache.pdfbox;
    requires org.apache.poi.ooxml;
    requires commons.math3;
    requires org.apache.commons.collections4;
    exports com.example;
    }

build.gradle

• Add the following content to the build.gradle file.

ext.moduleName = 'com.example'

tasks.compileJava {
    inputs.property('moduleName', moduleName)
    doFirst {
        options.compilerArgs = [
                '--module-path', classpath.asPath
        ]
        classpath = files()
    }
}