https://solr.apache.org/docs/9_0_0/solrj/org/apache/solr/client/solrj/request/CollectionAdminRequest.RequestStatus.html
CollectionAdminRequest.RequestStatus (Solr 9.0.0 solrj API)
solrapi
https://developers-dot-devsite-v2-prod.appspot.com/data-manager/api/reference/rest/v1/requestStatus/retrieve
Method: requestStatus.retrieve | Data Manager API | Google for Developers
data manager apimethodretrievegoogledevelopers