Following is the POST request body to /api/atlas/v2/search/basic
When any typeName is provided , Atlas throws 500 Internal server exception.Attached the exception stack trace.
When typeName parameter is removed ,or is given "null" value , response is 200 OK.
When a tag name is provided instead of "*" , and typeName is given ,no issues are seen.
Hence , issue with * in classificationName and typeName provided together.