Jboss-el-api usage in keycloak 10.0.2

I am trying to take keycloak approval for usage in our product. I am being asked this question about jboss-el-api usage from licensing perspective. Can anyone help me with the answer? My apologies for not understanding jboss-el-api and why the approver is concerned about it from licensing perspective.

what location the jboss-el-api is downloaded from, and what files from that dependency are compiled and included in keycloak