如何访问阴影gradle属性

plugins {
    id 'java'
    id 'com.github.johnrengelman.shadow' version '7.1.2'
}

shadowJar {
    archiveBaseName.set('my-project')
    archiveClassifier.set('')
    archiveVersion.set('')
    archiveFileName.set('my-project.jar')
}

ext {
    myCustomProperty = 'someValue'
}

shadowJar {
    manifest {
        attributes 'My-Custom-Attribute': myCustomProperty
    }
}

shadowJar {
    exclude 'module-info.class'
}

plugins {
    id 'java'
    id 'com.github.johnrengelman.shadow' version '7.1.2'
}

repositories {
    mavenCentral()
}

dependencies {
    implementation 'org.example:example-library:1.0.0'
}

ext {
    myCustomProperty = 'Hello, Shadow!'
}

shadowJar {
    archiveFileName.set('my-project.jar')
    manifest {
        attributes 'My-Custom-Attribute': myCustomProperty
    }
}