http://www.bouncycastle.org/java.html: The Bouncy Castle Java APIs for CMS, PKCS, EAC, TSP, CMP, CRMF, OCSP, and certificate generation. This jar contains APIs for JDK 1.5 to JDK 1.8. The APIs can be used in conjunction with a JCE/JCA provider such as the one provided with the Bouncy Castle Cryptography APIs.
  • The Legion of the Bouncy Castle Inc. 
public class org.bouncycastle.cert.selector.jcajce.JcaSelectorConverter
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.bouncycastle.cert.selector.jcajce.JcaSelectorConverter
  super_class: java.lang.Object
{
  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.bouncycastle.cert.selector.jcajce.JcaSelectorConverter this
         0: .line 12
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 15
            return
        end local 0 // org.bouncycastle.cert.selector.jcajce.JcaSelectorConverter this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/bouncycastle/cert/selector/jcajce/JcaSelectorConverter;

  public org.bouncycastle.cert.selector.X509CertificateHolderSelector getCertificateHolderSelector(java.security.cert.X509CertSelector);
    descriptor: (Ljava/security/cert/X509CertSelector;)Lorg/bouncycastle/cert/selector/X509CertificateHolderSelector;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=3, args_size=2
        start local 0 // org.bouncycastle.cert.selector.jcajce.JcaSelectorConverter this
        start local 1 // java.security.cert.X509CertSelector certSelector
         0: .line 21
            aload 1 /* certSelector */
            invokevirtual java.security.cert.X509CertSelector.getSubjectKeyIdentifier:()[B
            ifnull 3
         1: .line 23
            new org.bouncycastle.cert.selector.X509CertificateHolderSelector
            dup
            aload 1 /* certSelector */
            invokevirtual java.security.cert.X509CertSelector.getIssuerAsBytes:()[B
            invokestatic org.bouncycastle.asn1.x500.X500Name.getInstance:(Ljava/lang/Object;)Lorg/bouncycastle/asn1/x500/X500Name;
            aload 1 /* certSelector */
            invokevirtual java.security.cert.X509CertSelector.getSerialNumber:()Ljava/math/BigInteger;
            aload 1 /* certSelector */
            invokevirtual java.security.cert.X509CertSelector.getSubjectKeyIdentifier:()[B
            invokestatic org.bouncycastle.asn1.ASN1OctetString.getInstance:(Ljava/lang/Object;)Lorg/bouncycastle/asn1/ASN1OctetString;
            invokevirtual org.bouncycastle.asn1.ASN1OctetString.getOctets:()[B
            invokespecial org.bouncycastle.cert.selector.X509CertificateHolderSelector.<init>:(Lorg/bouncycastle/asn1/x500/X500Name;Ljava/math/BigInteger;[B)V
         2: areturn
         3: .line 27
      StackMap locals:
      StackMap stack:
            new org.bouncycastle.cert.selector.X509CertificateHolderSelector
            dup
            aload 1 /* certSelector */
            invokevirtual java.security.cert.X509CertSelector.getIssuerAsBytes:()[B
            invokestatic org.bouncycastle.asn1.x500.X500Name.getInstance:(Ljava/lang/Object;)Lorg/bouncycastle/asn1/x500/X500Name;
            aload 1 /* certSelector */
            invokevirtual java.security.cert.X509CertSelector.getSerialNumber:()Ljava/math/BigInteger;
            invokespecial org.bouncycastle.cert.selector.X509CertificateHolderSelector.<init>:(Lorg/bouncycastle/asn1/x500/X500Name;Ljava/math/BigInteger;)V
         4: areturn
         5: .line 30
      StackMap locals:
      StackMap stack: java.io.IOException
            astore 2 /* e */
        start local 2 // java.io.IOException e
         6: .line 32
            new java.lang.IllegalArgumentException
            dup
            new java.lang.StringBuilder
            dup
            ldc "unable to convert issuer: "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 2 /* e */
            invokevirtual java.io.IOException.getMessage:()Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
            athrow
        end local 2 // java.io.IOException e
        end local 1 // java.security.cert.X509CertSelector certSelector
        end local 0 // org.bouncycastle.cert.selector.jcajce.JcaSelectorConverter this
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0    7     0          this  Lorg/bouncycastle/cert/selector/jcajce/JcaSelectorConverter;
            0    7     1  certSelector  Ljava/security/cert/X509CertSelector;
            6    7     2             e  Ljava/io/IOException;
      Exception table:
        from    to  target  type
           0     2       5  Class java.io.IOException
           3     4       5  Class java.io.IOException
    MethodParameters:
              Name  Flags
      certSelector  
}
SourceFile: "JcaSelectorConverter.java"