Adding connector to Integration gives me the following error: <Error> <oracle.tip.tools.adapters.cloud.view.CloudAdapterUIFieldsBean> <BEA-000000> <The application has encountered an unexpected error. Please check the applications conn

Adding connector to Integration gives me the following error: 

<Error> <oracle.tip.tools.adapters.cloud.view.CloudAdapterUIFieldsBean> <BEA-000000> <The application has encountered an unexpected error. Please check the applications connection details, credentials and retry your request. Root cause of the Exception : null>

Please help.