/usr/share/gradle/ is in libgradle-core-java 3.4.1-7ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/gradle/lib/
/usr/share/gradle/lib/gradle-base-services-3.4.1.jar
/usr/share/gradle/lib/gradle-base-services-groovy-3.4.1.jar
/usr/share/gradle/lib/gradle-cli-3.4.1.jar
/usr/share/gradle/lib/gradle-core-3.4.1.jar
/usr/share/gradle/lib/gradle-docs-3.4.1.jar
/usr/share/gradle/lib/gradle-installation-beacon-3.4.1.jar
/usr/share/gradle/lib/gradle-jvm-services-3.4.1.jar
/usr/share/gradle/lib/gradle-logging-3.4.1.jar
/usr/share/gradle/lib/gradle-messaging-3.4.1.jar
/usr/share/gradle/lib/gradle-model-3.4.1.jar
/usr/share/gradle/lib/gradle-model-groovy-3.4.1.jar
/usr/share/gradle/lib/gradle-native-3.4.1.jar
/usr/share/gradle/lib/gradle-open-api-3.4.1.jar
/usr/share/gradle/lib/gradle-process-services-3.4.1.jar
/usr/share/gradle/lib/gradle-resources-3.4.1.jar
/usr/share/gradle/lib/gradle-tooling-api-3.4.1.jar
/usr/share/gradle/lib/gradle-version-info-3.4.1.jar
/usr/share/gradle/lib/gradle-workers-3.4.1.jar