How to Overcome \'Access restriction: The type \'Application\' is not API\' Error When Using javax.swing.JFrame and com.apple.eawt.Application?

Access restriction: The Type 'Application' is Not API

When attempting to utilize the javax.swing.JFrame and com.apple.eawt.Application classes, an error can arise indicating "Access restriction: The type 'Application' is not API." This issue pertains to Eclipse's access restriction mechanism, preventing the use of non-public API classes.

Addressing the Issue

To resolve this error, modify the project's access restrictions:

1. Navigate to the project's "Properties" menu from the "Package Explorer."
2. Select the "Java Build Path" and then the "Libraries" tab.
3. Expand the library entry containing the restricted class (rt.jar).
4. Access the "Access rules" section.
5. Click "Edit..." and then "Add..." to create a new access rule.
6. Set the "Resolution" as "Accessible" and the "Rule pattern" as "com/apple/eawt/**" to grant access to the Application class.

By implementing these steps, you can effectively override Eclipse's access restrictions and allow the use of the Application class.

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