This abstract class defines the Service Provider Interface for the CertPathValidator class. Security providers must implement this interface, but applications never need to use it.

public abstract class CertPathValidatorSpi {
// Public Constructors
     public CertPathValidatorSpi( );  
// Public Instance Methods
     public abstract CertPathValidatorResult engineValidate(CertPath certPath, 
        CertPathParameters params) 
        throws CertPathValidatorException, 
        java.security.InvalidAlgorithmParameterException;  
}

Passed To

CertPathValidator.CertPathValidator( )