UserStoreException when connecting wso2 is to oracle

Question

Dears, I tried https://apim.docs.wso2.com/en/latest/install-and-setup/setup/distributed-deployment/configuring-wso2-identity-server-as-a-key-manager/#step-1-download-and-install-wso2-is to use oracle db as shared_db between wso2 api manager and identity server and got this error? just created databases and set deployment config based on the document.

nullType class java.lang.reflect.InvocationTargetException 
org.wso2.carbon.user.core.UserStoreException: nullType class 
java.lang.reflect.InvocationTargetException

Answer 1

The same issue was observed here . Check the provided answer. Seems like changing the region might resolve the issue (if you have configured all others properly including the compatible drivers).