public abstract class CertPathBuilderSpi extends Object
CertPathBuilder class. All
 CertPathBuilder implementations must include a class (the
 SPI class) that extends this class (CertPathBuilderSpi) and
 implements all of its methods. In general, instances of this class should
 only be accessed through the CertPathBuilder class. For
 details, see the Java Cryptography Architecture.
 Concurrent Access
 Instances of this class need not be protected against concurrent
 access from multiple threads. Threads that need to access a single
 CertPathBuilderSpi instance concurrently should synchronize
 amongst themselves and provide the necessary locking before calling the
 wrapping CertPathBuilder object.
 
 However, implementations of CertPathBuilderSpi may still
 encounter concurrency issues, since multiple threads each
 manipulating a different CertPathBuilderSpi instance need not
 synchronize.
| Constructor and Description | 
|---|
| CertPathBuilderSpi()The default constructor. | 
| Modifier and Type | Method and Description | 
|---|---|
| abstract CertPathBuilderResult | engineBuild(CertPathParameters params)Attempts to build a certification path using the specified
 algorithm parameter set. | 
| CertPathChecker | engineGetRevocationChecker()Returns a  CertPathCheckerthat this implementation uses to
 check the revocation status of certificates. | 
public abstract CertPathBuilderResult engineBuild(CertPathParameters params) throws CertPathBuilderException, InvalidAlgorithmParameterException
params - the algorithm parametersCertPathBuilderException - if the builder is unable to construct
 a certification path that satisfies the specified parametersInvalidAlgorithmParameterException - if the specified parameters
 are inappropriate for this CertPathBuilderpublic CertPathChecker engineGetRevocationChecker()
CertPathChecker that this implementation uses to
 check the revocation status of certificates. A PKIX implementation
 returns objects of type PKIXRevocationChecker.
 The primary purpose of this method is to allow callers to specify
 additional input parameters and options specific to revocation checking.
 See the class description of CertPathBuilder for an example.
 
This method was added to version 1.8 of the Java Platform Standard
 Edition. In order to maintain backwards compatibility with existing
 service providers, this method cannot be abstract and by default throws
 an UnsupportedOperationException.
CertPathChecker that this implementation uses to
 check the revocation status of certificatesUnsupportedOperationException - if this method is not supported Submit a bug or feature 
For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
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