http://www.bouncycastle.org/java.html: The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for JDK 1.5. 
public class org.bouncycastle.x509.extension.SubjectKeyIdentifierStructure extends org.bouncycastle.asn1.x509.SubjectKeyIdentifier
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.bouncycastle.x509.extension.SubjectKeyIdentifierStructure
  super_class: org.bouncycastle.asn1.x509.SubjectKeyIdentifier
{
  public void <init>(byte[]);
    descriptor: ([B)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.bouncycastle.x509.extension.SubjectKeyIdentifierStructure this
        start local 1 // byte[] encodedValue
         0: .line 27
            aload 0 /* this */
            aload 1 /* encodedValue */
            invokestatic org.bouncycastle.x509.extension.X509ExtensionUtil.fromExtensionValue:([B)Lorg/bouncycastle/asn1/ASN1Object;
            checkcast org.bouncycastle.asn1.ASN1OctetString
            invokespecial org.bouncycastle.asn1.x509.SubjectKeyIdentifier.<init>:(Lorg/bouncycastle/asn1/ASN1OctetString;)V
         1: .line 28
            return
        end local 1 // byte[] encodedValue
        end local 0 // org.bouncycastle.x509.extension.SubjectKeyIdentifierStructure this
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0    2     0          this  Lorg/bouncycastle/x509/extension/SubjectKeyIdentifierStructure;
            0    2     1  encodedValue  [B
    Exceptions:
      throws java.io.IOException
    MethodParameters:
              Name  Flags
      encodedValue  

  private static org.bouncycastle.asn1.ASN1OctetString fromPublicKey(java.security.PublicKey);
    descriptor: (Ljava/security/PublicKey;)Lorg/bouncycastle/asn1/ASN1OctetString;
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=5, locals=2, args_size=1
        start local 0 // java.security.PublicKey pubKey
         0: .line 36
            aload 0 /* pubKey */
            invokeinterface java.security.PublicKey.getEncoded:()[B
            invokestatic org.bouncycastle.asn1.x509.SubjectPublicKeyInfo.getInstance:(Ljava/lang/Object;)Lorg/bouncycastle/asn1/x509/SubjectPublicKeyInfo;
            astore 1 /* info */
        start local 1 // org.bouncycastle.asn1.x509.SubjectPublicKeyInfo info
         1: .line 38
            new org.bouncycastle.asn1.x509.SubjectKeyIdentifier
            dup
            aload 1 /* info */
            invokespecial org.bouncycastle.asn1.x509.SubjectKeyIdentifier.<init>:(Lorg/bouncycastle/asn1/x509/SubjectPublicKeyInfo;)V
            invokevirtual org.bouncycastle.asn1.x509.SubjectKeyIdentifier.toASN1Object:()Lorg/bouncycastle/asn1/DERObject;
            checkcast org.bouncycastle.asn1.ASN1OctetString
         2: areturn
        end local 1 // org.bouncycastle.asn1.x509.SubjectPublicKeyInfo info
         3: .line 40
      StackMap locals:
      StackMap stack: java.lang.Exception
            astore 1 /* e */
        start local 1 // java.lang.Exception e
         4: .line 42
            new java.security.InvalidKeyException
            dup
            new java.lang.StringBuilder
            dup
            ldc "Exception extracting key details: "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 1 /* e */
            invokevirtual java.lang.Exception.toString:()Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokespecial java.security.InvalidKeyException.<init>:(Ljava/lang/String;)V
            athrow
        end local 1 // java.lang.Exception e
        end local 0 // java.security.PublicKey pubKey
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    5     0  pubKey  Ljava/security/PublicKey;
            1    3     1    info  Lorg/bouncycastle/asn1/x509/SubjectPublicKeyInfo;
            4    5     1       e  Ljava/lang/Exception;
      Exception table:
        from    to  target  type
           0     2       3  Class java.lang.Exception
    Exceptions:
      throws java.security.InvalidKeyException
    MethodParameters:
        Name  Flags
      pubKey  

  public void <init>(java.security.PublicKey);
    descriptor: (Ljava/security/PublicKey;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.bouncycastle.x509.extension.SubjectKeyIdentifierStructure this
        start local 1 // java.security.PublicKey pubKey
         0: .line 50
            aload 0 /* this */
            aload 1 /* pubKey */
            invokestatic org.bouncycastle.x509.extension.SubjectKeyIdentifierStructure.fromPublicKey:(Ljava/security/PublicKey;)Lorg/bouncycastle/asn1/ASN1OctetString;
            invokespecial org.bouncycastle.asn1.x509.SubjectKeyIdentifier.<init>:(Lorg/bouncycastle/asn1/ASN1OctetString;)V
         1: .line 51
            return
        end local 1 // java.security.PublicKey pubKey
        end local 0 // org.bouncycastle.x509.extension.SubjectKeyIdentifierStructure this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    2     0    this  Lorg/bouncycastle/x509/extension/SubjectKeyIdentifierStructure;
            0    2     1  pubKey  Ljava/security/PublicKey;
    Exceptions:
      throws java.security.InvalidKeyException
    MethodParameters:
        Name  Flags
      pubKey  
}
SourceFile: "SubjectKeyIdentifierStructure.java"