java.security.cert
Class CertificateFactory

java.lang.Object sample code for java.lang.Object definition code for java.lang.Object 
  extended by java.security.cert.CertificateFactory

public class CertificateFactory
extends Object sample code for java.lang.Object definition code for java.lang.Object

This class defines the functionality of a certificate factory, which is used to generate certificate, certification path (CertPath) and certificate revocation list (CRL) objects from their encodings.

For encodings consisting of multiple certificates, use generateCertificates when you want to parse a collection of possibly unrelated certificates. Otherwise, use generateCertPath when you want to generate a CertPath (a certificate chain) and subsequently validate it with a CertPathValidator.

A certificate factory for X.509 must return certificates that are an instance of java.security.cert.X509Certificate, and CRLs that are an instance of java.security.cert.X509CRL.

The following example reads a file with Base64 encoded certificates, which are each bounded at the beginning by -----BEGIN CERTIFICATE-----, and bounded at the end by -----END CERTIFICATE-----. We convert the FileInputStream (which does not support mark and reset) to a BufferedInputStream (which supports those methods), so that each call to generateCertificate consumes only one certificate, and the read position of the input stream is positioned to the next certificate in the file:

 FileInputStream fis = new FileInputStream(filename);
 BufferedInputStream bis = new BufferedInputStream(fis);

 CertificateFactory cf = CertificateFactory.getInstance("X.509");

 while (bis.available() > 0) {
    Certificate cert = cf.generateCertificate(bis);
    System.out.println(cert.toString());
 }
 

The following example parses a PKCS#7-formatted certificate reply stored in a file and extracts all the certificates from it:

 FileInputStream fis = new FileInputStream(filename);
 CertificateFactory cf = CertificateFactory.getInstance("X.509");
 Collection c = cf.generateCertificates(fis);
 Iterator i = c.iterator();
 while (i.hasNext()) {
    Certificate cert = (Certificate)i.next();
    System.out.println(cert);
 }
 

Since:
1.2
See Also:
Certificate sample code for java.security.cert.Certificate definition code for java.security.cert.Certificate , X509Certificate sample code for java.security.cert.X509Certificate definition code for java.security.cert.X509Certificate , CertPath sample code for java.security.cert.CertPath definition code for java.security.cert.CertPath , CRL sample code for java.security.cert.CRL definition code for java.security.cert.CRL , X509CRL sample code for java.security.cert.X509CRL definition code for java.security.cert.X509CRL

Constructor Summary
protected CertificateFactory sample code for java.security.cert.CertificateFactory.CertificateFactory(java.security.cert.CertificateFactorySpi, java.security.Provider, java.lang.String) definition code for java.security.cert.CertificateFactory.CertificateFactory(java.security.cert.CertificateFactorySpi, java.security.Provider, java.lang.String) (CertificateFactorySpi sample code for java.security.cert.CertificateFactorySpi definition code for java.security.cert.CertificateFactorySpi  certFacSpi, Provider sample code for java.security.Provider definition code for java.security.Provider  provider, String sample code for java.lang.String definition code for java.lang.String  type)
          Creates a CertificateFactory object of the given type, and encapsulates the given provider implementation (SPI object) in it.
 
Method Summary
 Certificate sample code for java.security.cert.Certificate definition code for java.security.cert.Certificate generateCertificate sample code for java.security.cert.CertificateFactory.generateCertificate(java.io.InputStream) definition code for java.security.cert.CertificateFactory.generateCertificate(java.io.InputStream) (InputStream sample code for java.io.InputStream definition code for java.io.InputStream  inStream)
          Generates a certificate object and initializes it with the data read from the input stream inStream.
 Collection sample code for java.util.Collection definition code for java.util.Collection <? extends Certificate sample code for java.security.cert.Certificate definition code for java.security.cert.Certificate > generateCertificates sample code for java.security.cert.CertificateFactory.generateCertificates(java.io.InputStream) definition code for java.security.cert.CertificateFactory.generateCertificates(java.io.InputStream) (InputStream sample code for java.io.InputStream definition code for java.io.InputStream  inStream)
          Returns a (possibly empty) collection view of the certificates read from the given input stream inStream.
 CertPath sample code for java.security.cert.CertPath definition code for java.security.cert.CertPath generateCertPath sample code for java.security.cert.CertificateFactory.generateCertPath(java.io.InputStream) definition code for java.security.cert.CertificateFactory.generateCertPath(java.io.InputStream) (InputStream sample code for java.io.InputStream definition code for java.io.InputStream  inStream)
          Generates a CertPath object and initializes it with the data read from the InputStream inStream.
 CertPath sample code for java.security.cert.CertPath definition code for java.security.cert.CertPath generateCertPath sample code for java.security.cert.CertificateFactory.generateCertPath(java.io.InputStream, java.lang.String) definition code for java.security.cert.CertificateFactory.generateCertPath(java.io.InputStream, java.lang.String) (InputStream sample code for java.io.InputStream definition code for java.io.InputStream  inStream, String sample code for java.lang.String definition code for java.lang.String  encoding)
          Generates a CertPath object and initializes it with the data read from the InputStream inStream.
 CertPath sample code for java.security.cert.CertPath definition code for java.security.cert.CertPath generateCertPath sample code for java.security.cert.CertificateFactory.generateCertPath(java.util.List) definition code for java.security.cert.CertificateFactory.generateCertPath(java.util.List) (List sample code for java.util.List definition code for java.util.List <? extends Certificate sample code for java.security.cert.Certificate definition code for java.security.cert.Certificate > certificates)
          Generates a CertPath object and initializes it with a List of Certificates.
 CRL sample code for java.security.cert.CRL definition code for java.security.cert.CRL generateCRL sample code for java.security.cert.CertificateFactory.generateCRL(java.io.InputStream) definition code for java.security.cert.CertificateFactory.generateCRL(java.io.InputStream) (InputStream sample code for java.io.InputStream definition code for java.io.InputStream  inStream)
          Generates a certificate revocation list (CRL) object and initializes it with the data read from the input stream inStream.
 Collection sample code for java.util.Collection definition code for java.util.Collection <? extends CRL sample code for java.security.cert.CRL definition code for java.security.cert.CRL > generateCRLs sample code for java.security.cert.CertificateFactory.generateCRLs(java.io.InputStream) definition code for java.security.cert.CertificateFactory.generateCRLs(java.io.InputStream) (InputStream sample code for java.io.InputStream definition code for java.io.InputStream  inStream)
          Returns a (possibly empty) collection view of the CRLs read from the given input stream inStream.
 Iterator sample code for java.util.Iterator definition code for java.util.Iterator <String sample code for java.lang.String definition code for java.lang.String > getCertPathEncodings sample code for java.security.cert.CertificateFactory.getCertPathEncodings() definition code for java.security.cert.CertificateFactory.getCertPathEncodings() ()
          Returns an iteration of the CertPath encodings supported by this certificate factory, with the default encoding first.
static CertificateFactory sample code for java.security.cert.CertificateFactory definition code for java.security.cert.CertificateFactory getInstance sample code for java.security.cert.CertificateFactory.getInstance(java.lang.String) definition code for java.security.cert.CertificateFactory.getInstance(java.lang.String) (String sample code for java.lang.String definition code for java.lang.String  type)
          Generates a certificate factory object that implements the specified certificate type.
static CertificateFactory sample code for java.security.cert.CertificateFactory definition code for java.security.cert.CertificateFactory getInstance sample code for java.security.cert.CertificateFactory.getInstance(java.lang.String, java.security.Provider) definition code for java.security.cert.CertificateFactory.getInstance(java.lang.String, java.security.Provider) (String sample code for java.lang.String definition code for java.lang.String  type, Provider sample code for java.security.Provider definition code for java.security.Provider  provider)
          Generates a certificate factory object for the specified certificate type from the specified provider.
static CertificateFactory sample code for java.security.cert.CertificateFactory definition code for java.security.cert.CertificateFactory getInstance sample code for java.security.cert.CertificateFactory.getInstance(java.lang.String, java.lang.String) definition code for java.security.cert.CertificateFactory.getInstance(java.lang.String, java.lang.String) (String sample code for java.lang.String definition code for java.lang.String  type, String sample code for java.lang.String definition code for java.lang.String  provider)
          Generates a certificate factory object for the specified certificate type from the specified provider.
 Provider sample code for java.security.Provider definition code for java.security.Provider getProvider sample code for java.security.cert.CertificateFactory.getProvider() definition code for java.security.cert.CertificateFactory.getProvider() ()
          Returns the provider of this certificate factory.
 String sample code for java.lang.String definition code for java.lang.String getType sample code for java.security.cert.CertificateFactory.getType() definition code for java.security.cert.CertificateFactory.getType() ()
          Returns the name of the certificate type associated with this certificate factory.
 
Methods inherited from class java.lang.Object sample code for java.lang.Object definition code for java.lang.Object
clone sample code for java.lang.Object.clone() definition code for java.lang.Object.clone() , equals sample code for java.lang.Object.equals(java.lang.Object) definition code for java.lang.Object.equals(java.lang.Object) , finalize sample code for java.lang.Object.finalize() definition code for java.lang.Object.finalize() , getClass sample code for java.lang.Object.getClass() definition code for java.lang.Object.getClass() , hashCode sample code for java.lang.Object.hashCode() definition code for java.lang.Object.hashCode() , notify sample code for java.lang.Object.notify() definition code for java.lang.Object.notify() , notifyAll sample code for java.lang.Object.notifyAll() definition code for java.lang.Object.notifyAll() , toString sample code for java.lang.Object.toString() definition code for java.lang.Object.toString() , wait sample code for java.lang.Object.wait() definition code for java.lang.Object.wait() , wait sample code for java.lang.Object.wait(long) definition code for java.lang.Object.wait(long) , wait sample code for java.lang.Object.wait(long, int) definition code for java.lang.Object.wait(long, int)
 

Constructor Detail

CertificateFactory sample code for java.security.cert.CertificateFactory(java.security.cert.CertificateFactorySpi, java.security.Provider, java.lang.String) definition code for java.security.cert.CertificateFactory(java.security.cert.CertificateFactorySpi, java.security.Provider, java.lang.String)

protected CertificateFactory(CertificateFactorySpi sample code for java.security.cert.CertificateFactorySpi definition code for java.security.cert.CertificateFactorySpi  certFacSpi,
                             Provider sample code for java.security.Provider definition code for java.security.Provider  provider,
                             String sample code for java.lang.String definition code for java.lang.String  type)
Creates a CertificateFactory object of the given type, and encapsulates the given provider implementation (SPI object) in it.

Parameters:
certFacSpi - the provider implementation.
provider - the provider.
type - the certificate type.
Method Detail

getInstance sample code for java.security.cert.CertificateFactory.getInstance(java.lang.String) definition code for java.security.cert.CertificateFactory.getInstance(java.lang.String)

public static final CertificateFactory sample code for java.security.cert.CertificateFactory definition code for java.security.cert.CertificateFactory  getInstance(String sample code for java.lang.String definition code for java.lang.String  type)
                                            throws CertificateException sample code for java.security.cert.CertificateException definition code for java.security.cert.CertificateException 
Generates a certificate factory object that implements the specified certificate type. If the default provider package provides an implementation of the requested certificate type, an instance of certificate factory containing that implementation is returned. If the type is not available in the default package, other packages are searched.

Parameters:
type - the name of the requested certificate type. See Appendix A in the Java Cryptography Architecture API Specification & Reference for information about standard certificate types.
Returns:
a certificate factory object for the specified type.
Throws:
CertificateException sample code for java.security.cert.CertificateException definition code for java.security.cert.CertificateException - if the requested certificate type is not available in the default provider package or any of the other provider packages that were searched.

getInstance sample code for java.security.cert.CertificateFactory.getInstance(java.lang.String, java.lang.String) definition code for java.security.cert.CertificateFactory.getInstance(java.lang.String, java.lang.String)

public static final CertificateFactory sample code for java.security.cert.CertificateFactory definition code for java.security.cert.CertificateFactory  getInstance(String sample code for java.lang.String definition code for java.lang.String  type,
                                                   String sample code for java.lang.String definition code for java.lang.String  provider)
                                            throws CertificateException sample code for java.security.cert.CertificateException definition code for java.security.cert.CertificateException ,
                                                   NoSuchProviderException sample code for java.security.NoSuchProviderException definition code for java.security.NoSuchProviderException 
Generates a certificate factory object for the specified certificate type from the specified provider.

Parameters:
type - the certificate type
provider - the name of the provider.
Returns:
a certificate factory object for the specified type.
Throws:
CertificateException sample code for java.security.cert.CertificateException definition code for java.security.cert.CertificateException - if the certificate type is not available from the specified provider.
NoSuchProviderException sample code for java.security.NoSuchProviderException definition code for java.security.NoSuchProviderException - if the provider has not been configured.
See Also:
Provider sample code for java.security.Provider definition code for java.security.Provider

getInstance sample code for java.security.cert.CertificateFactory.getInstance(java.lang.String, java.security.Provider) definition code for java.security.cert.CertificateFactory.getInstance(java.lang.String, java.security.Provider)

public static final CertificateFactory sample code for java.security.cert.CertificateFactory definition code for java.security.cert.CertificateFactory  getInstance(String sample code for java.lang.String definition code for java.lang.String  type,
                                                   Provider sample code for java.security.Provider definition code for java.security.Provider  provider)
                                            throws CertificateException sample code for java.security.cert.CertificateException definition code for java.security.cert.CertificateException 
Generates a certificate factory object for the specified certificate type from the specified provider. Note: the provider doesn't have to be registered.

Parameters:
type - the certificate type
provider - the provider
Returns:
a certificate factory object for the specified type.
Throws:
CertificateException sample code for java.security.cert.CertificateException definition code for java.security.cert.CertificateException - if the certificate type is not available from the specified provider.
IllegalArgumentException sample code for java.lang.IllegalArgumentException definition code for java.lang.IllegalArgumentException - if the provider is null.
Since:
1.4
See Also:
Provider sample code for java.security.Provider definition code for java.security.Provider

getProvider sample code for java.security.cert.CertificateFactory.getProvider() definition code for java.security.cert.CertificateFactory.getProvider()

public final Provider sample code for java.security.Provider definition code for java.security.Provider  getProvider()
Returns the provider of this certificate factory.

Returns:
the provider of this certificate factory.

getType sample code for java.security.cert.CertificateFactory.getType() definition code for java.security.cert.CertificateFactory.getType()

public final String sample code for java.lang.String definition code for java.lang.String  getType()
Returns the name of the certificate type associated with this certificate factory.

Returns:
the name of the certificate type associated with this certificate factory.

generateCertificate sample code for java.security.cert.CertificateFactory.generateCertificate(java.io.InputStream) definition code for java.security.cert.CertificateFactory.generateCertificate(java.io.InputStream)

public final Certificate sample code for java.security.cert.Certificate definition code for java.security.cert.Certificate  generateCertificate(InputStream sample code for java.io.InputStream definition code for java.io.InputStream  inStream)
                                      throws CertificateException sample code for java.security.cert.CertificateException definition code for java.security.cert.CertificateException 
Generates a certificate object and initializes it with the data read from the input stream inStream.

In order to take advantage of the specialized certificate format supported by this certificate factory, the returned certificate object can be typecast to the corresponding certificate class. For example, if this certificate factory implements X.509 certificates, the returned certificate object can be typecast to the X509Certificate class.

In the case of a certificate factory for X.509 certificates, the certificate provided in inStream must be DER-encoded and may be supplied in binary or printable (Base64) encoding. If the certificate is provided in Base64 encoding, it must be bounded at the beginning by -----BEGIN CERTIFICATE-----, and must be bounded at the end by -----END CERTIFICATE-----.

Note that if the given input stream does not support mark sample code for java.io.InputStream.mark(int) definition code for java.io.InputStream.mark(int) and reset sample code for java.io.InputStream.reset() definition code for java.io.InputStream.reset() , this method will consume the entire input stream. Otherwise, each call to this method consumes one certificate and the read position of the input stream is positioned to the next available byte after the inherent end-of-certificate marker. If the data in the input stream does not contain an inherent end-of-certificate marker (other than EOF) and there is trailing data after the certificate is parsed, a CertificateException is thrown.

Parameters:
inStream - an input stream with the certificate data.
Returns:
a certificate object initialized with the data from the input stream.
Throws:
CertificateException sample code for java.security.cert.CertificateException definition code for java.security.cert.CertificateException - on parsing errors.

getCertPathEncodings sample code for java.security.cert.CertificateFactory.getCertPathEncodings() definition code for java.security.cert.CertificateFactory.getCertPathEncodings()

public final Iterator sample code for java.util.Iterator definition code for java.util.Iterator <String sample code for java.lang.String definition code for java.lang.String > getCertPathEncodings()
Returns an iteration of the CertPath encodings supported by this certificate factory, with the default encoding first. See Appendix A in the Java Certification Path API Programmer's Guide for information about standard encoding names and their formats.

Attempts to modify the returned Iterator via its remove method result in an UnsupportedOperationException.

Returns:
an Iterator over the names of the supported CertPath encodings (as Strings)
Since:
1.4

generateCertPath sample code for java.security.cert.CertificateFactory.generateCertPath(java.io.InputStream) definition code for java.security.cert.CertificateFactory.generateCertPath(java.io.InputStream)

public final CertPath sample code for java.security.cert.CertPath definition code for java.security.cert.CertPath  generateCertPath(InputStream sample code for java.io.InputStream definition code for java.io.InputStream  inStream)
                                throws CertificateException sample code for java.security.cert.CertificateException definition code for java.security.cert.CertificateException 
Generates a CertPath object and initializes it with the data read from the InputStream inStream. The data is assumed to be in the default encoding. The name of the default encoding is the first element of the Iterator returned by the getCertPathEncodings sample code for java.security.cert.CertificateFactory.getCertPathEncodings() definition code for java.security.cert.CertificateFactory.getCertPathEncodings() method.

Parameters:
inStream - an InputStream containing the data
Returns:
a CertPath initialized with the data from the InputStream
Throws:
CertificateException sample code for java.security.cert.CertificateException definition code for java.security.cert.CertificateException - if an exception occurs while decoding
Since:
1.4

generateCertPath sample code for java.security.cert.CertificateFactory.generateCertPath(java.io.InputStream, java.lang.String) definition code for java.security.cert.CertificateFactory.generateCertPath(java.io.InputStream, java.lang.String)

public final CertPath sample code for java.security.cert.CertPath definition code for java.security.cert.CertPath  generateCertPath(InputStream sample code for java.io.InputStream definition code for java.io.InputStream  inStream,
                                       String sample code for java.lang.String definition code for java.lang.String  encoding)
                                throws CertificateException sample code for java.security.cert.CertificateException definition code for java.security.cert.CertificateException 
Generates a CertPath object and initializes it with the data read from the InputStream inStream. The data is assumed to be in the specified encoding. See Appendix A in the Java Certification Path API Programmer's Guide for information about standard encoding names and their formats.

Parameters:
inStream - an InputStream containing the data
encoding - the encoding used for the data
Returns:
a CertPath initialized with the data from the InputStream
Throws:
CertificateException sample code for java.security.cert.CertificateException definition code for java.security.cert.CertificateException - if an exception occurs while decoding or the encoding requested is not supported
Since:
1.4

generateCertPath sample code for java.security.cert.CertificateFactory.generateCertPath(java.util.List<? extends java.security.cert.Certificate>) definition code for java.security.cert.CertificateFactory.generateCertPath(java.util.List<? extends java.security.cert.Certificate>)

public final CertPath sample code for java.security.cert.CertPath definition code for java.security.cert.CertPath  generateCertPath(List sample code for java.util.List definition code for java.util.List <? extends Certificate sample code for java.security.cert.Certificate definition code for java.security.cert.Certificate > certificates)
                                throws CertificateException sample code for java.security.cert.CertificateException definition code for java.security.cert.CertificateException 
Generates a CertPath object and initializes it with a List of Certificates.

The certificates supplied must be of a type supported by the CertificateFactory. They will be copied out of the supplied List object.

Parameters:
certificates - a List of Certificates
Returns:
a CertPath initialized with the supplied list of certificates
Throws:
CertificateException sample code for java.security.cert.CertificateException definition code for java.security.cert.CertificateException - if an exception occurs
Since:
1.4

generateCertificates sample code for java.security.cert.CertificateFactory.generateCertificates(java.io.InputStream) definition code for java.security.cert.CertificateFactory.generateCertificates(java.io.InputStream)

public final Collection sample code for java.util.Collection definition code for java.util.Collection <? extends Certificate sample code for java.security.cert.Certificate definition code for java.security.cert.Certificate > generateCertificates(InputStream sample code for java.io.InputStream definition code for java.io.InputStream  inStream)
                                                             throws CertificateException sample code for java.security.cert.CertificateException definition code for java.security.cert.CertificateException 
Returns a (possibly empty) collection view of the certificates read from the given input stream inStream.

In order to take advantage of the specialized certificate format supported by this certificate factory, each element in the returned collection view can be typecast to the corresponding certificate class. For example, if this certificate factory implements X.509 certificates, the elements in the returned collection can be typecast to the X509Certificate class.

In the case of a certificate factory for X.509 certificates, inStream may contain a sequence of DER-encoded certificates in the formats described for generateCertificate sample code for java.security.cert.CertificateFactory.generateCertificate(java.io.InputStream) definition code for java.security.cert.CertificateFactory.generateCertificate(java.io.InputStream) . In addition, inStream may contain a PKCS#7 certificate chain. This is a PKCS#7 SignedData object, with the only significant field being certificates. In particular, the signature and the contents are ignored. This format allows multiple certificates to be downloaded at once. If no certificates are present, an empty collection is returned.

Note that if the given input stream does not support mark sample code for java.io.InputStream.mark(int) definition code for java.io.InputStream.mark(int) and reset sample code for java.io.InputStream.reset() definition code for java.io.InputStream.reset() , this method will consume the entire input stream.

Parameters:
inStream - the input stream with the certificates.
Returns:
a (possibly empty) collection view of java.security.cert.Certificate objects initialized with the data from the input stream.
Throws:
CertificateException sample code for java.security.cert.CertificateException definition code for java.security.cert.CertificateException - on parsing errors.

generateCRL sample code for java.security.cert.CertificateFactory.generateCRL(java.io.InputStream) definition code for java.security.cert.CertificateFactory.generateCRL(java.io.InputStream)

public final CRL sample code for java.security.cert.CRL definition code for java.security.cert.CRL  generateCRL(InputStream sample code for java.io.InputStream definition code for java.io.InputStream  inStream)
                      throws CRLException sample code for java.security.cert.CRLException definition code for java.security.cert.CRLException 
Generates a certificate revocation list (CRL) object and initializes it with the data read from the input stream inStream.

In order to take advantage of the specialized CRL format supported by this certificate factory, the returned CRL object can be typecast to the corresponding CRL class. For example, if this certificate factory implements X.509 CRLs, the returned CRL object can be typecast to the X509CRL class.

Note that if the given input stream does not support mark sample code for java.io.InputStream.mark(int) definition code for java.io.InputStream.mark(int) and reset sample code for java.io.InputStream.reset() definition code for java.io.InputStream.reset() , this method will consume the entire input stream. Otherwise, each call to this method consumes one CRL and the read position of the input stream is positioned to the next available byte after the the inherent end-of-CRL marker. If the data in the input stream does not contain an inherent end-of-CRL marker (other than EOF) and there is trailing data after the CRL is parsed, a CRLException is thrown.

Parameters:
inStream - an input stream with the CRL data.
Returns:
a CRL object initialized with the data from the input stream.
Throws:
CRLException sample code for java.security.cert.CRLException definition code for java.security.cert.CRLException - on parsing errors.

generateCRLs sample code for java.security.cert.CertificateFactory.generateCRLs(java.io.InputStream) definition code for java.security.cert.CertificateFactory.generateCRLs(java.io.InputStream)

public final Collection sample code for java.util.Collection definition code for java.util.Collection <? extends CRL sample code for java.security.cert.CRL definition code for java.security.cert.CRL > generateCRLs(InputStream sample code for java.io.InputStream definition code for java.io.InputStream  inStream)
                                             throws CRLException sample code for java.security.cert.CRLException definition code for java.security.cert.CRLException 
Returns a (possibly empty) collection view of the CRLs read from the given input stream inStream.

In order to take advantage of the specialized CRL format supported by this certificate factory, each element in the returned collection view can be typecast to the corresponding CRL class. For example, if this certificate factory implements X.509 CRLs, the elements in the returned collection can be typecast to the X509CRL class.

In the case of a certificate factory for X.509 CRLs, inStream may contain a sequence of DER-encoded CRLs. In addition, inStream may contain a PKCS#7 CRL set. This is a PKCS#7 SignedData object, with the only significant field being crls. In particular, the signature and the contents are ignored. This format allows multiple CRLs to be downloaded at once. If no CRLs are present, an empty collection is returned.

Note that if the given input stream does not support mark sample code for java.io.InputStream.mark(int) definition code for java.io.InputStream.mark(int) and reset sample code for java.io.InputStream.reset() definition code for java.io.InputStream.reset() , this method will consume the entire input stream.

Parameters:
inStream - the input stream with the CRLs.
Returns:
a (possibly empty) collection view of java.security.cert.CRL objects initialized with the data from the input stream.
Throws:
CRLException sample code for java.security.cert.CRLException definition code for java.security.cert.CRLException - on parsing errors.