https://github.com/gradle/gradle/issues/6389

and-lib-0.1.0.module

{
  "formatVersion": "0.4",
  "component": {
    "group": "com.trevjonez",
    "module": "and-lib",
    "version": "0.1.0",
    "attributes": {
      "org.gradle.status": "release"
    }
  },
  "createdBy": {
    "gradle": {
      "version": "4.9",
      "buildId": "r5dsw2t5fza4nbasdieaiv5api"
    }
  },
  "variants": [
    {
      "name": "releaseApi",
      "attributes": {
        "com.android.build.api.attributes.BuildTypeAttr": "release",
        "com.android.build.gradle.internal.dependency.AndroidTypeAttr": "Aar",
        "org.gradle.usage": "java-api"
      },
      "dependencies": [
        {
          "group": "io.reactivex.rxjava2",
          "module": "rxjava",
          "version": {
            "prefers": "2.2.0"
          }
        }
      ],
      "files": [
        {
          "name": "and-lib-release.aar",
          "url": "and-lib-0.1.0.aar",
          "size": 1004,
          "sha1": "d16d1b5978a93f727ade5423b0e424ea8d4b05e9",
          "md5": "f3e9d564f3d8401254eda92488babe5"
        }
      ]
    },
    {
      "name": "releaseRuntime",
      "attributes": {
        "com.android.build.api.attributes.BuildTypeAttr": "release",
        "com.android.build.gradle.internal.dependency.AndroidTypeAttr": "Aar",
        "org.gradle.usage": "java-runtime"
      },
      "dependencies": [
        {
          "group": "com.squareup.moshi",
          "module": "moshi",
          "version": {
            "prefers": "1.6.0"
          }
        },
        {
          "group": "io.reactivex.rxjava2",
          "module": "rxjava",
          "version": {
            "prefers": "2.2.0"
          }
        }
      ],
      "files": [
        {
          "name": "and-lib-release.aar",
          "url": "and-lib-0.1.0.aar",
          "size": 1004,
          "sha1": "d16d1b5978a93f727ade5423b0e424ea8d4b05e9",
          "md5": "f3e9d564f3d8401254eda92488babe5"
        }
      ]
    },
    {
      "name": "debugApi",
      "attributes": {
        "com.android.build.api.attributes.BuildTypeAttr": "debug",
        "com.android.build.gradle.internal.dependency.AndroidTypeAttr": "Aar",
        "org.gradle.usage": "java-api"
      },
      "available-at": {
        "url": "../../and-lib_debug/0.1.0/and-lib_debug-0.1.0.module",
        "group": "com.trevjonez",
        "module": "and-lib_debug",
        "version": "0.1.0"
      }
    },
    {
      "name": "debugRuntime",
      "attributes": {
        "com.android.build.api.attributes.BuildTypeAttr": "debug",
        "com.android.build.gradle.internal.dependency.AndroidTypeAttr": "Aar",
        "org.gradle.usage": "java-runtime"
      },
      "available-at": {
        "url": "../../and-lib_debug/0.1.0/and-lib_debug-0.1.0.module",
        "group": "com.trevjonez",
        "module": "and-lib_debug",
        "version": "0.1.0"
      }
    },
    {
      "name": "releaseApi",
      "attributes": {
        "com.android.build.api.attributes.BuildTypeAttr": "release",
        "com.android.build.gradle.internal.dependency.AndroidTypeAttr": "Aar",
        "org.gradle.usage": "java-api"
      },
      "available-at": {
        "url": "../../and-lib_release/0.1.0/and-lib_release-0.1.0.module",
        "group": "com.trevjonez",
        "module": "and-lib_release",
        "version": "0.1.0"
      }
    },
    {
      "name": "releaseRuntime",
      "attributes": {
        "com.android.build.api.attributes.BuildTypeAttr": "release",
        "com.android.build.gradle.internal.dependency.AndroidTypeAttr": "Aar",
        "org.gradle.usage": "java-runtime"
      },
      "available-at": {
        "url": "../../and-lib_release/0.1.0/and-lib_release-0.1.0.module",
        "group": "com.trevjonez",
        "module": "and-lib_release",
        "version": "0.1.0"
      }
    }
  ]
}

and-lib-0.1.0.module with legacy variant

{
  "formatVersion": "0.4",
  "component": {
    "group": "com.trevjonez",
    "module": "and-lib",
    "version": "0.1.0",
    "attributes": {
      "org.gradle.status": "release"
    }
  },
  "createdBy": {
    "gradle": {
      "version": "4.9",
      "buildId": "qrxg3nwqgjc2zczlqxeyspmcg4"
    }
  },
  "variants": [
    {
      "name": "legacy-support-redirect",
      "attributes": {
        "org.gradle.usage": "java-api"
      },
      "dependencies": [
        {
          "group": "com.trevjonez",
          "module": "and-lib_release",
          "version": {
            "prefers": "0.1.0"
          }
        }
      ]
    },
    {
      "name": "debugApi",
      "attributes": {
        "com.android.build.api.attributes.BuildTypeAttr": "debug",
        "com.android.build.gradle.internal.dependency.AndroidTypeAttr": "Aar",
        "org.gradle.usage": "java-api"
      },
      "available-at": {
        "url": "../../and-lib_debug/0.1.0/and-lib_debug-0.1.0.module",
        "group": "com.trevjonez",
        "module": "and-lib_debug",
        "version": "0.1.0"
      }
    },
    {
      "name": "debugRuntime",
      "attributes": {
        "com.android.build.api.attributes.BuildTypeAttr": "debug",
        "com.android.build.gradle.internal.dependency.AndroidTypeAttr": "Aar",
        "org.gradle.usage": "java-runtime"
      },
      "available-at": {
        "url": "../../and-lib_debug/0.1.0/and-lib_debug-0.1.0.module",
        "group": "com.trevjonez",
        "module": "and-lib_debug",
        "version": "0.1.0"
      }
    },
    {
      "name": "releaseApi",
      "attributes": {
        "com.android.build.api.attributes.BuildTypeAttr": "release",
        "com.android.build.gradle.internal.dependency.AndroidTypeAttr": "Aar",
        "org.gradle.usage": "java-api"
      },
      "available-at": {
        "url": "../../and-lib_release/0.1.0/and-lib_release-0.1.0.module",
        "group": "com.trevjonez",
        "module": "and-lib_release",
        "version": "0.1.0"
      }
    },
    {
      "name": "releaseRuntime",
      "attributes": {
        "com.android.build.api.attributes.BuildTypeAttr": "release",
        "com.android.build.gradle.internal.dependency.AndroidTypeAttr": "Aar",
        "org.gradle.usage": "java-runtime"
      },
      "available-at": {
        "url": "../../and-lib_release/0.1.0/and-lib_release-0.1.0.module",
        "group": "com.trevjonez",
        "module": "and-lib_release",
        "version": "0.1.0"
      }
    }
  ]
}

and-lib-0.1.0.pom main pom points to default variant po

<?xml version="1.0" encoding="UTF-8"?>
<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.trevjonez</groupId>
  <artifactId>and-lib</artifactId>
  <version>0.1.0</version>
  <packaging>pom</packaging>
  <dependencies>
    <dependency>
      <groupId>com.trevjonez</groupId>
      <artifactId>and-lib_release</artifactId>
      <version>0.1.0</version>
      <scope>compile</scope>
    </dependency>
  </dependencies>
</project>