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.ASN1Sequence extends org.bouncycastle.asn1.ASN1Object
  minor version: 0
  major version: 59
  flags: flags: (0x0421) ACC_PUBLIC, ACC_SUPER, ACC_ABSTRACT
  this_class: org.bouncycastle.asn1.ASN1Sequence
  super_class: org.bouncycastle.asn1.ASN1Object
{
  private java.util.Vector seq;
    descriptor: Ljava/util/Vector;
    flags: (0x0002) ACC_PRIVATE

  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // org.bouncycastle.asn1.ASN1Sequence this
         0: .line 7
            aload 0 /* this */
            invokespecial org.bouncycastle.asn1.ASN1Object.<init>:()V
         1: .line 10
            aload 0 /* this */
            new java.util.Vector
            dup
            invokespecial java.util.Vector.<init>:()V
            putfield org.bouncycastle.asn1.ASN1Sequence.seq:Ljava/util/Vector;
         2: .line 7
            return
        end local 0 // org.bouncycastle.asn1.ASN1Sequence this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lorg/bouncycastle/asn1/ASN1Sequence;

  public static org.bouncycastle.asn1.ASN1Sequence getInstance(java.lang.Object);
    descriptor: (Ljava/lang/Object;)Lorg/bouncycastle/asn1/ASN1Sequence;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=5, locals=2, args_size=1
        start local 0 // java.lang.Object obj
         0: .line 21
            aload 0 /* obj */
            ifnull 1
            aload 0 /* obj */
            instanceof org.bouncycastle.asn1.ASN1Sequence
            ifeq 2
         1: .line 23
      StackMap locals:
      StackMap stack:
            aload 0 /* obj */
            checkcast org.bouncycastle.asn1.ASN1Sequence
            areturn
         2: .line 25
      StackMap locals:
      StackMap stack:
            aload 0 /* obj */
            instanceof byte[]
            ifeq 7
         3: .line 29
            aload 0 /* obj */
            checkcast byte[]
            invokestatic org.bouncycastle.asn1.ASN1Object.fromByteArray:([B)Lorg/bouncycastle/asn1/ASN1Object;
            invokestatic org.bouncycastle.asn1.ASN1Sequence.getInstance:(Ljava/lang/Object;)Lorg/bouncycastle/asn1/ASN1Sequence;
         4: areturn
         5: .line 31
      StackMap locals:
      StackMap stack: java.io.IOException
            astore 1 /* e */
        start local 1 // java.io.IOException e
         6: .line 33
            new java.lang.IllegalArgumentException
            dup
            new java.lang.StringBuilder
            dup
            ldc "failed to construct sequence from byte[]: "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 1 /* 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 1 // java.io.IOException e
         7: .line 37
      StackMap locals:
      StackMap stack:
            new java.lang.IllegalArgumentException
            dup
            new java.lang.StringBuilder
            dup
            ldc "unknown 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    8     0   obj  Ljava/lang/Object;
            6    7     1     e  Ljava/io/IOException;
      Exception table:
        from    to  target  type
           3     4       5  Class java.io.IOException
    MethodParameters:
      Name  Flags
      obj   

  public static org.bouncycastle.asn1.ASN1Sequence getInstance(org.bouncycastle.asn1.ASN1TaggedObject, boolean);
    descriptor: (Lorg/bouncycastle/asn1/ASN1TaggedObject;Z)Lorg/bouncycastle/asn1/ASN1Sequence;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=5, locals=2, args_size=2
        start local 0 // org.bouncycastle.asn1.ASN1TaggedObject obj
        start local 1 // boolean explicit
         0: .line 60
            iload 1 /* explicit */
            ifeq 4
         1: .line 62
            aload 0 /* obj */
            invokevirtual org.bouncycastle.asn1.ASN1TaggedObject.isExplicit:()Z
            ifne 3
         2: .line 64
            new java.lang.IllegalArgumentException
            dup
            ldc "object implicit - explicit expected."
            invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
            athrow
         3: .line 67
      StackMap locals:
      StackMap stack:
            aload 0 /* obj */
            invokevirtual org.bouncycastle.asn1.ASN1TaggedObject.getObject:()Lorg/bouncycastle/asn1/DERObject;
            checkcast org.bouncycastle.asn1.ASN1Sequence
            areturn
         4: .line 76
      StackMap locals:
      StackMap stack:
            aload 0 /* obj */
            invokevirtual org.bouncycastle.asn1.ASN1TaggedObject.isExplicit:()Z
            ifeq 8
         5: .line 78
            aload 0 /* obj */
            instanceof org.bouncycastle.asn1.BERTaggedObject
            ifeq 7
         6: .line 80
            new org.bouncycastle.asn1.BERSequence
            dup
            aload 0 /* obj */
            invokevirtual org.bouncycastle.asn1.ASN1TaggedObject.getObject:()Lorg/bouncycastle/asn1/DERObject;
            invokespecial org.bouncycastle.asn1.BERSequence.<init>:(Lorg/bouncycastle/asn1/DEREncodable;)V
            areturn
         7: .line 84
      StackMap locals:
      StackMap stack:
            new org.bouncycastle.asn1.DERSequence
            dup
            aload 0 /* obj */
            invokevirtual org.bouncycastle.asn1.ASN1TaggedObject.getObject:()Lorg/bouncycastle/asn1/DERObject;
            invokespecial org.bouncycastle.asn1.DERSequence.<init>:(Lorg/bouncycastle/asn1/DEREncodable;)V
            areturn
         8: .line 89
      StackMap locals:
      StackMap stack:
            aload 0 /* obj */
            invokevirtual org.bouncycastle.asn1.ASN1TaggedObject.getObject:()Lorg/bouncycastle/asn1/DERObject;
            instanceof org.bouncycastle.asn1.ASN1Sequence
            ifeq 10
         9: .line 91
            aload 0 /* obj */
            invokevirtual org.bouncycastle.asn1.ASN1TaggedObject.getObject:()Lorg/bouncycastle/asn1/DERObject;
            checkcast org.bouncycastle.asn1.ASN1Sequence
            areturn
        10: .line 96
      StackMap locals:
      StackMap stack:
            new java.lang.IllegalArgumentException
            dup
            new java.lang.StringBuilder
            dup
            ldc "unknown 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 1 // boolean explicit
        end local 0 // org.bouncycastle.asn1.ASN1TaggedObject obj
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0   11     0       obj  Lorg/bouncycastle/asn1/ASN1TaggedObject;
            0   11     1  explicit  Z
    MethodParameters:
          Name  Flags
      obj       
      explicit  

  public java.util.Enumeration getObjects();
    descriptor: ()Ljava/util/Enumeration;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.bouncycastle.asn1.ASN1Sequence this
         0: .line 101
            aload 0 /* this */
            getfield org.bouncycastle.asn1.ASN1Sequence.seq:Ljava/util/Vector;
            invokevirtual java.util.Vector.elements:()Ljava/util/Enumeration;
            areturn
        end local 0 // org.bouncycastle.asn1.ASN1Sequence this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/bouncycastle/asn1/ASN1Sequence;

  public org.bouncycastle.asn1.ASN1SequenceParser parser();
    descriptor: ()Lorg/bouncycastle/asn1/ASN1SequenceParser;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=2, args_size=1
        start local 0 // org.bouncycastle.asn1.ASN1Sequence this
         0: .line 106
            aload 0 /* this */
            astore 1 /* outer */
        start local 1 // org.bouncycastle.asn1.ASN1Sequence outer
         1: .line 108
            new org.bouncycastle.asn1.ASN1Sequence$1
            dup
            aload 0 /* this */
            aload 1 /* outer */
            invokespecial org.bouncycastle.asn1.ASN1Sequence$1.<init>:(Lorg/bouncycastle/asn1/ASN1Sequence;Lorg/bouncycastle/asn1/ASN1Sequence;)V
            areturn
        end local 1 // org.bouncycastle.asn1.ASN1Sequence outer
        end local 0 // org.bouncycastle.asn1.ASN1Sequence this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    2     0   this  Lorg/bouncycastle/asn1/ASN1Sequence;
            1    2     1  outer  Lorg/bouncycastle/asn1/ASN1Sequence;

  public org.bouncycastle.asn1.DEREncodable getObjectAt(int);
    descriptor: (I)Lorg/bouncycastle/asn1/DEREncodable;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.bouncycastle.asn1.ASN1Sequence this
        start local 1 // int index
         0: .line 155
            aload 0 /* this */
            getfield org.bouncycastle.asn1.ASN1Sequence.seq:Ljava/util/Vector;
            iload 1 /* index */
            invokevirtual java.util.Vector.elementAt:(I)Ljava/lang/Object;
            checkcast org.bouncycastle.asn1.DEREncodable
            areturn
        end local 1 // int index
        end local 0 // org.bouncycastle.asn1.ASN1Sequence this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    1     0   this  Lorg/bouncycastle/asn1/ASN1Sequence;
            0    1     1  index  I
    MethodParameters:
       Name  Flags
      index  

  public int size();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.bouncycastle.asn1.ASN1Sequence this
         0: .line 165
            aload 0 /* this */
            getfield org.bouncycastle.asn1.ASN1Sequence.seq:Ljava/util/Vector;
            invokevirtual java.util.Vector.size:()I
            ireturn
        end local 0 // org.bouncycastle.asn1.ASN1Sequence this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/bouncycastle/asn1/ASN1Sequence;

  public int hashCode();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=4, args_size=1
        start local 0 // org.bouncycastle.asn1.ASN1Sequence this
         0: .line 170
            aload 0 /* this */
            invokevirtual org.bouncycastle.asn1.ASN1Sequence.getObjects:()Ljava/util/Enumeration;
            astore 1 /* e */
        start local 1 // java.util.Enumeration e
         1: .line 171
            aload 0 /* this */
            invokevirtual org.bouncycastle.asn1.ASN1Sequence.size:()I
            istore 2 /* hashCode */
        start local 2 // int hashCode
         2: .line 173
            goto 6
         3: .line 175
      StackMap locals: java.util.Enumeration int
      StackMap stack:
            aload 0 /* this */
            aload 1 /* e */
            invokevirtual org.bouncycastle.asn1.ASN1Sequence.getNext:(Ljava/util/Enumeration;)Lorg/bouncycastle/asn1/DEREncodable;
            astore 3 /* o */
        start local 3 // java.lang.Object o
         4: .line 176
            iload 2 /* hashCode */
            bipush 17
            imul
            istore 2 /* hashCode */
         5: .line 178
            iload 2 /* hashCode */
            aload 3 /* o */
            invokevirtual java.lang.Object.hashCode:()I
            ixor
            istore 2 /* hashCode */
        end local 3 // java.lang.Object o
         6: .line 173
      StackMap locals:
      StackMap stack:
            aload 1 /* e */
            invokeinterface java.util.Enumeration.hasMoreElements:()Z
            ifne 3
         7: .line 181
            iload 2 /* hashCode */
            ireturn
        end local 2 // int hashCode
        end local 1 // java.util.Enumeration e
        end local 0 // org.bouncycastle.asn1.ASN1Sequence this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    8     0      this  Lorg/bouncycastle/asn1/ASN1Sequence;
            1    8     1         e  Ljava/util/Enumeration;
            2    8     2  hashCode  I
            4    6     3         o  Ljava/lang/Object;

  boolean asn1Equals(org.bouncycastle.asn1.DERObject);
    descriptor: (Lorg/bouncycastle/asn1/DERObject;)Z
    flags: (0x0000) 
    Code:
      stack=2, locals=9, args_size=2
        start local 0 // org.bouncycastle.asn1.ASN1Sequence this
        start local 1 // org.bouncycastle.asn1.DERObject o
         0: .line 187
            aload 1 /* o */
            instanceof org.bouncycastle.asn1.ASN1Sequence
            ifne 2
         1: .line 189
            iconst_0
            ireturn
         2: .line 192
      StackMap locals:
      StackMap stack:
            aload 1 /* o */
            checkcast org.bouncycastle.asn1.ASN1Sequence
            astore 2 /* other */
        start local 2 // org.bouncycastle.asn1.ASN1Sequence other
         3: .line 194
            aload 0 /* this */
            invokevirtual org.bouncycastle.asn1.ASN1Sequence.size:()I
            aload 2 /* other */
            invokevirtual org.bouncycastle.asn1.ASN1Sequence.size:()I
            if_icmpeq 5
         4: .line 196
            iconst_0
            ireturn
         5: .line 199
      StackMap locals: org.bouncycastle.asn1.ASN1Sequence
      StackMap stack:
            aload 0 /* this */
            invokevirtual org.bouncycastle.asn1.ASN1Sequence.getObjects:()Ljava/util/Enumeration;
            astore 3 /* s1 */
        start local 3 // java.util.Enumeration s1
         6: .line 200
            aload 2 /* other */
            invokevirtual org.bouncycastle.asn1.ASN1Sequence.getObjects:()Ljava/util/Enumeration;
            astore 4 /* s2 */
        start local 4 // java.util.Enumeration s2
         7: .line 202
            goto 15
         8: .line 204
      StackMap locals: java.util.Enumeration java.util.Enumeration
      StackMap stack:
            aload 0 /* this */
            aload 3 /* s1 */
            invokevirtual org.bouncycastle.asn1.ASN1Sequence.getNext:(Ljava/util/Enumeration;)Lorg/bouncycastle/asn1/DEREncodable;
            astore 5 /* obj1 */
        start local 5 // org.bouncycastle.asn1.DEREncodable obj1
         9: .line 205
            aload 0 /* this */
            aload 4 /* s2 */
            invokevirtual org.bouncycastle.asn1.ASN1Sequence.getNext:(Ljava/util/Enumeration;)Lorg/bouncycastle/asn1/DEREncodable;
            astore 6 /* obj2 */
        start local 6 // org.bouncycastle.asn1.DEREncodable obj2
        10: .line 207
            aload 5 /* obj1 */
            invokeinterface org.bouncycastle.asn1.DEREncodable.getDERObject:()Lorg/bouncycastle/asn1/DERObject;
            astore 7 /* o1 */
        start local 7 // org.bouncycastle.asn1.DERObject o1
        11: .line 208
            aload 6 /* obj2 */
            invokeinterface org.bouncycastle.asn1.DEREncodable.getDERObject:()Lorg/bouncycastle/asn1/DERObject;
            astore 8 /* o2 */
        start local 8 // org.bouncycastle.asn1.DERObject o2
        12: .line 210
            aload 7 /* o1 */
            aload 8 /* o2 */
            if_acmpeq 15
            aload 7 /* o1 */
            aload 8 /* o2 */
            invokevirtual org.bouncycastle.asn1.DERObject.equals:(Ljava/lang/Object;)Z
            ifeq 14
        13: .line 212
            goto 15
        14: .line 215
      StackMap locals: org.bouncycastle.asn1.ASN1Sequence org.bouncycastle.asn1.DERObject org.bouncycastle.asn1.ASN1Sequence java.util.Enumeration java.util.Enumeration org.bouncycastle.asn1.DEREncodable org.bouncycastle.asn1.DEREncodable org.bouncycastle.asn1.DERObject org.bouncycastle.asn1.DERObject
      StackMap stack:
            iconst_0
            ireturn
        end local 8 // org.bouncycastle.asn1.DERObject o2
        end local 7 // org.bouncycastle.asn1.DERObject o1
        end local 6 // org.bouncycastle.asn1.DEREncodable obj2
        end local 5 // org.bouncycastle.asn1.DEREncodable obj1
        15: .line 202
      StackMap locals: org.bouncycastle.asn1.ASN1Sequence org.bouncycastle.asn1.DERObject org.bouncycastle.asn1.ASN1Sequence java.util.Enumeration java.util.Enumeration
      StackMap stack:
            aload 3 /* s1 */
            invokeinterface java.util.Enumeration.hasMoreElements:()Z
            ifne 8
        16: .line 218
            iconst_1
            ireturn
        end local 4 // java.util.Enumeration s2
        end local 3 // java.util.Enumeration s1
        end local 2 // org.bouncycastle.asn1.ASN1Sequence other
        end local 1 // org.bouncycastle.asn1.DERObject o
        end local 0 // org.bouncycastle.asn1.ASN1Sequence this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0   17     0   this  Lorg/bouncycastle/asn1/ASN1Sequence;
            0   17     1      o  Lorg/bouncycastle/asn1/DERObject;
            3   17     2  other  Lorg/bouncycastle/asn1/ASN1Sequence;
            6   17     3     s1  Ljava/util/Enumeration;
            7   17     4     s2  Ljava/util/Enumeration;
            9   15     5   obj1  Lorg/bouncycastle/asn1/DEREncodable;
           10   15     6   obj2  Lorg/bouncycastle/asn1/DEREncodable;
           11   15     7     o1  Lorg/bouncycastle/asn1/DERObject;
           12   15     8     o2  Lorg/bouncycastle/asn1/DERObject;
    MethodParameters:
      Name  Flags
      o     

  private org.bouncycastle.asn1.DEREncodable getNext(java.util.Enumeration);
    descriptor: (Ljava/util/Enumeration;)Lorg/bouncycastle/asn1/DEREncodable;
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=1, locals=3, args_size=2
        start local 0 // org.bouncycastle.asn1.ASN1Sequence this
        start local 1 // java.util.Enumeration e
         0: .line 223
            aload 1 /* e */
            invokeinterface java.util.Enumeration.nextElement:()Ljava/lang/Object;
            checkcast org.bouncycastle.asn1.DEREncodable
            astore 2 /* encObj */
        start local 2 // org.bouncycastle.asn1.DEREncodable encObj
         1: .line 226
            aload 2 /* encObj */
            ifnonnull 3
         2: .line 228
            getstatic org.bouncycastle.asn1.DERNull.INSTANCE:Lorg/bouncycastle/asn1/DERNull;
            areturn
         3: .line 231
      StackMap locals: org.bouncycastle.asn1.DEREncodable
      StackMap stack:
            aload 2 /* encObj */
            areturn
        end local 2 // org.bouncycastle.asn1.DEREncodable encObj
        end local 1 // java.util.Enumeration e
        end local 0 // org.bouncycastle.asn1.ASN1Sequence this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    4     0    this  Lorg/bouncycastle/asn1/ASN1Sequence;
            0    4     1       e  Ljava/util/Enumeration;
            1    4     2  encObj  Lorg/bouncycastle/asn1/DEREncodable;
    MethodParameters:
      Name  Flags
      e     

  protected void addObject(org.bouncycastle.asn1.DEREncodable);
    descriptor: (Lorg/bouncycastle/asn1/DEREncodable;)V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.bouncycastle.asn1.ASN1Sequence this
        start local 1 // org.bouncycastle.asn1.DEREncodable obj
         0: .line 237
            aload 0 /* this */
            getfield org.bouncycastle.asn1.ASN1Sequence.seq:Ljava/util/Vector;
            aload 1 /* obj */
            invokevirtual java.util.Vector.addElement:(Ljava/lang/Object;)V
         1: .line 238
            return
        end local 1 // org.bouncycastle.asn1.DEREncodable obj
        end local 0 // org.bouncycastle.asn1.ASN1Sequence this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/bouncycastle/asn1/ASN1Sequence;
            0    2     1   obj  Lorg/bouncycastle/asn1/DEREncodable;
    MethodParameters:
      Name  Flags
      obj   

  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=1, locals=1, args_size=1
        start local 0 // org.bouncycastle.asn1.ASN1Sequence this
         0: .line 245
            aload 0 /* this */
            getfield org.bouncycastle.asn1.ASN1Sequence.seq:Ljava/util/Vector;
            invokevirtual java.util.Vector.toString:()Ljava/lang/String;
            areturn
        end local 0 // org.bouncycastle.asn1.ASN1Sequence this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/bouncycastle/asn1/ASN1Sequence;
}
SourceFile: "ASN1Sequence.java"
NestMembers:
  org.bouncycastle.asn1.ASN1Sequence$1
InnerClasses:
  org.bouncycastle.asn1.ASN1Sequence$1