Error thrown when something goes wrong while loading a service provider.

This error will be thrown in the following situations:

• The format of a provider-configuration file violates the specification;
• An IOException occurs while reading a provider-configuration file;
• A concrete provider class named in a provider-configuration file cannot be found;
• A concrete provider class is not a subclass of the service class;
• A concrete provider class cannot be instantiated; or
• Some other kind of error occurs.

version	1.5, 06/04/10
since	1.6