It is crucial to properly tune the resources (databases, thread pools, and so on). Since Java EE 6, some resources can be defined in the application. For instance, a DataSource can be defined with:
@DataSourceDefinition( name = "java:app/jdbc/quote_manager", className = "com.mysql.jdbc.Driver", url = "jdbc:mysql://localhost:3306/quote_manager", user = "root", password = "password")public class DataSourceConfiguration {}
This is often a bad idea since you can't externally configure it (it is hardcoded). Thus, you often end up configuring the resources in server specific files or UI.
This is a good practise to avoid in the application. But outside the application, Java EE doesn't define any way or standard to ...
