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 abstract class org.bouncycastle.asn1.ASN1OctetString extends org.bouncycastle.asn1.ASN1Object implements org.bouncycastle.asn1.ASN1OctetStringParser
  minor version: 0
  major version: 59
  flags: flags: (0x0421) ACC_PUBLIC, ACC_SUPER, ACC_ABSTRACT
  this_class: org.bouncycastle.asn1.ASN1OctetString
  super_class: org.bouncycastle.asn1.ASN1Object
{
  byte[] string;
    descriptor: [B
    flags: (0x0000) 

  public static org.bouncycastle.asn1.ASN1OctetString getInstance(org.bouncycastle.asn1.ASN1TaggedObject, boolean);
    descriptor: (Lorg/bouncycastle/asn1/ASN1TaggedObject;Z)Lorg/bouncycastle/asn1/ASN1OctetString;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=1, locals=3, args_size=2
        start local 0 // org.bouncycastle.asn1.ASN1TaggedObject obj
        start local 1 // boolean explicit
         0: .line 29
            aload 0 /* obj */
            invokevirtual org.bouncycastle.asn1.ASN1TaggedObject.getObject:()Lorg/bouncycastle/asn1/DERObject;
            astore 2 /* o */
        start local 2 // org.bouncycastle.asn1.DERObject o
         1: .line 31
            iload 1 /* explicit */
            ifne 2
            aload 2 /* o */
            instanceof org.bouncycastle.asn1.ASN1OctetString
            ifeq 3
         2: .line 33
      StackMap locals: org.bouncycastle.asn1.DERObject
      StackMap stack:
            aload 2 /* o */
            invokestatic org.bouncycastle.asn1.ASN1OctetString.getInstance:(Ljava/lang/Object;)Lorg/bouncycastle/asn1/ASN1OctetString;
            areturn
         3: .line 37
      StackMap locals:
      StackMap stack:
            aload 2 /* o */
            invokestatic org.bouncycastle.asn1.ASN1Sequence.getInstance:(Ljava/lang/Object;)Lorg/bouncycastle/asn1/ASN1Sequence;
            invokestatic org.bouncycastle.asn1.BERConstructedOctetString.fromSequence:(Lorg/bouncycastle/asn1/ASN1Sequence;)Lorg/bouncycastle/asn1/BERConstructedOctetString;
            areturn
        end local 2 // org.bouncycastle.asn1.DERObject o
        end local 1 // boolean explicit
        end local 0 // org.bouncycastle.asn1.ASN1TaggedObject obj
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    4     0       obj  Lorg/bouncycastle/asn1/ASN1TaggedObject;
            0    4     1  explicit  Z
            1    4     2         o  Lorg/bouncycastle/asn1/DERObject;
    MethodParameters:
          Name  Flags
      obj       
      explicit  

  public static org.bouncycastle.asn1.ASN1OctetString getInstance(java.lang.Object);
    descriptor: (Ljava/lang/Object;)Lorg/bouncycastle/asn1/ASN1OctetString;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=5, locals=1, args_size=1
        start local 0 // java.lang.Object obj
         0: .line 50
            aload 0 /* obj */
            ifnull 1
            aload 0 /* obj */
            instanceof org.bouncycastle.asn1.ASN1OctetString
            ifeq 2
         1: .line 52
      StackMap locals:
      StackMap stack:
            aload 0 /* obj */
            checkcast org.bouncycastle.asn1.ASN1OctetString
            areturn
         2: .line 56
      StackMap locals:
      StackMap stack:
            aload 0 /* obj */
            instanceof org.bouncycastle.asn1.ASN1TaggedObject
            ifeq 4
         3: .line 58
            aload 0 /* obj */
            checkcast org.bouncycastle.asn1.ASN1TaggedObject
            invokevirtual org.bouncycastle.asn1.ASN1TaggedObject.getObject:()Lorg/bouncycastle/asn1/DERObject;
            invokestatic org.bouncycastle.asn1.ASN1OctetString.getInstance:(Ljava/lang/Object;)Lorg/bouncycastle/asn1/ASN1OctetString;
            areturn
         4: .line 61
      StackMap locals:
      StackMap stack:
            new java.lang.IllegalArgumentException
            dup
            new java.lang.StringBuilder
            dup
            ldc "illegal object in getInstance: "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 0 /* obj */
            invokevirtual java.lang.Object.getClass:()Ljava/lang/Class;
            invokevirtual java.lang.Class.getName:()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 0 // java.lang.Object obj
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    5     0   obj  Ljava/lang/Object;
    MethodParameters:
      Name  Flags
      obj   

  public void <init>(byte[]);
    descriptor: ([B)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // org.bouncycastle.asn1.ASN1OctetString this
        start local 1 // byte[] string
         0: .line 67
            aload 0 /* this */
            invokespecial org.bouncycastle.asn1.ASN1Object.<init>:()V
         1: .line 70
            aload 1 /* string */
            ifnonnull 3
         2: .line 72
            new java.lang.NullPointerException
            dup
            ldc "string cannot be null"
            invokespecial java.lang.NullPointerException.<init>:(Ljava/lang/String;)V
            athrow
         3: .line 74
      StackMap locals: org.bouncycastle.asn1.ASN1OctetString byte[]
      StackMap stack:
            aload 0 /* this */
            aload 1 /* string */
            putfield org.bouncycastle.asn1.ASN1OctetString.string:[B
         4: .line 75
            return
        end local 1 // byte[] string
        end local 0 // org.bouncycastle.asn1.ASN1OctetString this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    5     0    this  Lorg/bouncycastle/asn1/ASN1OctetString;
            0    5     1  string  [B
    MethodParameters:
        Name  Flags
      string  

  public void <init>(org.bouncycastle.asn1.DEREncodable);
    descriptor: (Lorg/bouncycastle/asn1/DEREncodable;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=3, args_size=2
        start local 0 // org.bouncycastle.asn1.ASN1OctetString this
        start local 1 // org.bouncycastle.asn1.DEREncodable obj
         0: .line 77
            aload 0 /* this */
            invokespecial org.bouncycastle.asn1.ASN1Object.<init>:()V
         1: .line 82
            aload 0 /* this */
            aload 1 /* obj */
            invokeinterface org.bouncycastle.asn1.DEREncodable.getDERObject:()Lorg/bouncycastle/asn1/DERObject;
            ldc "DER"
            invokevirtual org.bouncycastle.asn1.DERObject.getEncoded:(Ljava/lang/String;)[B
            putfield org.bouncycastle.asn1.ASN1OctetString.string:[B
         2: .line 83
            goto 5
         3: .line 84
      StackMap locals: org.bouncycastle.asn1.ASN1OctetString org.bouncycastle.asn1.DEREncodable
      StackMap stack: java.io.IOException
            astore 2 /* e */
        start local 2 // java.io.IOException e
         4: .line 86
            new java.lang.IllegalArgumentException
            dup
            new java.lang.StringBuilder
            dup
            ldc "Error processing object : "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 2 /* e */
            invokevirtual java.io.IOException.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.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
            athrow
        end local 2 // java.io.IOException e
         5: .line 88
      StackMap locals:
      StackMap stack:
            return
        end local 1 // org.bouncycastle.asn1.DEREncodable obj
        end local 0 // org.bouncycastle.asn1.ASN1OctetString this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    6     0  this  Lorg/bouncycastle/asn1/ASN1OctetString;
            0    6     1   obj  Lorg/bouncycastle/asn1/DEREncodable;
            4    5     2     e  Ljava/io/IOException;
      Exception table:
        from    to  target  type
           1     2       3  Class java.io.IOException
    MethodParameters:
      Name  Flags
      obj   

  public java.io.InputStream getOctetStream();
    descriptor: ()Ljava/io/InputStream;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // org.bouncycastle.asn1.ASN1OctetString this
         0: .line 92
            new java.io.ByteArrayInputStream
            dup
            aload 0 /* this */
            getfield org.bouncycastle.asn1.ASN1OctetString.string:[B
            invokespecial java.io.ByteArrayInputStream.<init>:([B)V
            areturn
        end local 0 // org.bouncycastle.asn1.ASN1OctetString this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/bouncycastle/asn1/ASN1OctetString;

  public org.bouncycastle.asn1.ASN1OctetStringParser parser();
    descriptor: ()Lorg/bouncycastle/asn1/ASN1OctetStringParser;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.bouncycastle.asn1.ASN1OctetString this
         0: .line 97
            aload 0 /* this */
            areturn
        end local 0 // org.bouncycastle.asn1.ASN1OctetString this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/bouncycastle/asn1/ASN1OctetString;

  public byte[] getOctets();
    descriptor: ()[B
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.bouncycastle.asn1.ASN1OctetString this
         0: .line 102
            aload 0 /* this */
            getfield org.bouncycastle.asn1.ASN1OctetString.string:[B
            areturn
        end local 0 // org.bouncycastle.asn1.ASN1OctetString this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/bouncycastle/asn1/ASN1OctetString;

  public int hashCode();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.bouncycastle.asn1.ASN1OctetString this
         0: .line 107
            aload 0 /* this */
            invokevirtual org.bouncycastle.asn1.ASN1OctetString.getOctets:()[B
            invokestatic org.bouncycastle.util.Arrays.hashCode:([B)I
            ireturn
        end local 0 // org.bouncycastle.asn1.ASN1OctetString this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/bouncycastle/asn1/ASN1OctetString;

  boolean asn1Equals(org.bouncycastle.asn1.DERObject);
    descriptor: (Lorg/bouncycastle/asn1/DERObject;)Z
    flags: (0x0000) 
    Code:
      stack=2, locals=3, args_size=2
        start local 0 // org.bouncycastle.asn1.ASN1OctetString this
        start local 1 // org.bouncycastle.asn1.DERObject o
         0: .line 113
            aload 1 /* o */
            instanceof org.bouncycastle.asn1.ASN1OctetString
            ifne 2
         1: .line 115
            iconst_0
            ireturn
         2: .line 118
      StackMap locals:
      StackMap stack:
            aload 1 /* o */
            checkcast org.bouncycastle.asn1.ASN1OctetString
            astore 2 /* other */
        start local 2 // org.bouncycastle.asn1.ASN1OctetString other
         3: .line 120
            aload 0 /* this */
            getfield org.bouncycastle.asn1.ASN1OctetString.string:[B
            aload 2 /* other */
            getfield org.bouncycastle.asn1.ASN1OctetString.string:[B
            invokestatic org.bouncycastle.util.Arrays.areEqual:([B[B)Z
            ireturn
        end local 2 // org.bouncycastle.asn1.ASN1OctetString other
        end local 1 // org.bouncycastle.asn1.DERObject o
        end local 0 // org.bouncycastle.asn1.ASN1OctetString this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    4     0   this  Lorg/bouncycastle/asn1/ASN1OctetString;
            0    4     1      o  Lorg/bouncycastle/asn1/DERObject;
            3    4     2  other  Lorg/bouncycastle/asn1/ASN1OctetString;
    MethodParameters:
      Name  Flags
      o     

  public org.bouncycastle.asn1.DERObject getLoadedObject();
    descriptor: ()Lorg/bouncycastle/asn1/DERObject;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.bouncycastle.asn1.ASN1OctetString this
         0: .line 125
            aload 0 /* this */
            invokevirtual org.bouncycastle.asn1.ASN1OctetString.getDERObject:()Lorg/bouncycastle/asn1/DERObject;
            areturn
        end local 0 // org.bouncycastle.asn1.ASN1OctetString this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/bouncycastle/asn1/ASN1OctetString;

  abstract void encode(org.bouncycastle.asn1.DEROutputStream);
    descriptor: (Lorg/bouncycastle/asn1/DEROutputStream;)V
    flags: (0x0400) ACC_ABSTRACT
    Exceptions:
      throws java.io.IOException
    MethodParameters:
      Name  Flags
      out   

  public java.lang.String toString();
    descriptor: ()Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=1, args_size=1
        start local 0 // org.bouncycastle.asn1.ASN1OctetString this
         0: .line 133
            new java.lang.StringBuilder
            dup
            ldc "#"
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            new java.lang.String
            dup
            aload 0 /* this */
            getfield org.bouncycastle.asn1.ASN1OctetString.string:[B
            invokestatic org.bouncycastle.util.encoders.Hex.encode:([B)[B
            invokespecial java.lang.String.<init>:([B)V
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            areturn
        end local 0 // org.bouncycastle.asn1.ASN1OctetString this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/bouncycastle/asn1/ASN1OctetString;
}
SourceFile: "ASN1OctetString.java"