Users assigned the role Java_User role cannot access the SDK or Java Console.
If you have been granted the role Java_User for Oracle Java Cloud Service - SaaS Extension, you have limited options with what you can do with the service. For example, you can’t see the Java Cloud Service - SaaS Extension instance in the Infrastructure Classic Console, nor can you access Java Cloud Service - SaaS Extension Control or the SDK.
To access these — and other blocked — features, contact your ID administrator and have your role changed to Java_Administrator. The role of Java_User is an out-of-the-box sample role that allows users to access those samples. Otherwise for general application access, this role is not useful.