question: private PKIXBuilderParameters CreatePKIXBuilderParameters ( X509Certificate endCert ) throws CertificatePathBuildingException { X509CertSelector targetConstraints = new X509CertSelector ( ) ; targetConstraints . setCertificate ( endCert ) ; PKIXBuilderParameters params ; try { params = new PKIXBuilderParameters ( trustStore , targetConstraints ) ; params . setRevocationEnabled ( false ) ; } catch ( KeyStoreException e ) { throw new CertificatePathBuildingException ( "Error creating PKIXBuilderParameters: Please check trust store" + e . getMessage ( ) , e ) ; } catch ( InvalidAlgorithmParameterException e ) { throw new CertificatePathBuildingException ( "Error creating PKIXBuilderParameters:" + e . getMessage ( ) , e ) ; } catch ( Throwable e ) { throw new CertificatePathBuildingException ( "Error creating PKIXBuilderParameters:" + e . getMessage ( ) , e ) ; } Collection < Object > certCollection = new ArrayList < Object > ( ) ; addCertificateCandidates ( endCert , certCollection ) ; if ( ! certCollection . isEmpty ( ) ) { try { CertStore certStore = CertStore . getInstance ( "Collection" , new CollectionCertStoreParameters ( certCollection ) ) ; params . addCertStore ( certStore ) ; } catch ( InvalidAlgorithmParameterException e ) { throw new CertificatePathBuildingException ( "Error creating CertStore for PKIXBuilderParameters:" + e . getMessage ( ) , e ) ; } catch ( NoSuchAlgorithmException e ) { throw new CertificatePathBuildingException ( "Error creating CertStore for  PKIXBuilderParameters:" + e . getMessage ( ) , e ) ; } } else { logger . debug ( "Revocation check: CRL list empty" ) ; } return params ; }
target:  Create and init PKIXBuilderParameters for CertPathBuilder.