Returns a (possibly empty) collection view of the CRLs read from the given input stream {@code 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 {@code X509CRL} class.
In the case of a certificate factory for X.509 CRLs, {@code inStream} may contain a single DER-encoded CRL.In addition, {@code inStream} may contain a PKCS#7 CRLset. 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 {@link java.io.InputStream#mark(int) mark} and{@link java.io.InputStream#reset() reset}, this method will consume the entire input stream.
@param inStream the input stream with the CRLs.
@return a (possibly empty) collection view ofjava.security.cert.CRL objects initialized with the data from the input stream.
@exception CRLException on parsing errors.