lug in implementations for
 JSON processing objects.

 <p> <a href="JsonProvider.html" title="class in jakarta.json.spi"><code>JsonProvider</code></a> is an abstract class 
 that provides a service for creating JSON processing instances.
 A <i>service provider</i> for <code>JsonProvider</code> provides an 
 specific implementation by subclassing and implementing the methods in
 <code>JsonProvider</code>. This enables using custom, efficient JSON processing
 implementations (for e.g. parser and generator) ot