I have seen a recurrent issue in our error logs, but this time it was my code that threw this error (or called the service that threw the error)
[ART.117.4011] Adapter Runtime (Adapter Service): Unable to connect to resource connections.JDBC:WmConfig_DbConfig_1. The resource is already being used in a parent transaction.
up until now, I had been blaming folks for invoking a service that was in wait status. but that is not the case with the code I was runing. My code creates a list of required values, then loops over the list and asks the DB to chime in with data, and puts them to a doc. I was tracing through this code on this occasion, and noticed that the doc had a single string that was null.
Some info on this adapter/service. it reaches into a rac oracle db to retrieve data based on value pairs and then caches it for the next time its called. The adapter is set to NO_TRANSACTION.
I realize, that there are multiple items I am leaving out, but has any one had this error, and what should I scrutinize?