It looks like org.apache.commons.lang is used in org.apache.openjpa too [1]. It's also commented out in com.microsoft.azure.storage [2].

[1]: https://github.com/wildfly/wildfly/blob/master/feature-pack/src/main/resources/modules/system/layers/base/org/apache/openjpa/main/module.xml#L44 

[2]: https://github.com/wildfly/wildfly/blob/master/feature-pack/src/main/resources/modules/system/layers/base/com/microsoft/azure/storage/main/module.xml#L38