java Resource annotation is not supported on static fields

The @Resource annotation in Java is used to inject a resource dependency, such as a data source or JMS connection factory, into a Java class. It is not supported on static fields because static fields are not associated with a specific instance of a class.

The @Resource annotation is typically used on instance variables or methods to inject the resource dependency into the instance of the class. For example:

public class MyClass {

    @Resource
    private DataSource dataSource;

    // ...
}

In this example, the dataSource instance variable is annotated with @Resource to inject a data source dependency into the class. When an instance of MyClass is created, the container will automatically inject the appropriate data source into the dataSource variable.

If you need to access a resource in a static context, you can use other mechanisms like JNDI lookup or dependency injection frameworks that support static fields