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 to JDK 1.8.
  • The Legion of the Bouncy Castle Inc. 
public class org.bouncycastle.asn1.DERBitString extends org.bouncycastle.asn1.ASN1BitString
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.bouncycastle.asn1.DERBitString
  super_class: org.bouncycastle.asn1.ASN1BitString
{
  public static org.bouncycastle.asn1.DERBitString getInstance(java.lang.Object);
    descriptor: (Ljava/lang/Object;)Lorg/bouncycastle/asn1/DERBitString;
    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.DERBitString
            ifeq 2
         1: .line 23
      StackMap locals:
      StackMap stack:
            aload 0 /* obj */
            checkcast org.bouncycastle.asn1.DERBitString
            areturn
         2: .line 25
      StackMap locals:
      StackMap stack:
            aload 0 /* obj */
            instanceof org.bouncycastle.asn1.DLBitString
            ifeq 4
         3: .line 27
            new org.bouncycastle.asn1.DERBitString
            dup
            aload 0 /* obj */
            checkcast org.bouncycastle.asn1.DLBitString
            getfield org.bouncycastle.asn1.DLBitString.data:[B
            aload 0 /* obj */
            checkcast org.bouncycastle.asn1.DLBitString
            getfield org.bouncycastle.asn1.DLBitString.padBits:I
            invokespecial org.bouncycastle.asn1.DERBitString.<init>:([BI)V
            areturn
         4: .line 29
      StackMap locals:
      StackMap stack:
            aload 0 /* obj */
            instanceof byte[]
            ifeq 9
         5: .line 33
            aload 0 /* obj */
            checkcast byte[]
            invokestatic org.bouncycastle.asn1.DERBitString.fromByteArray:([B)Lorg/bouncycastle/asn1/ASN1Primitive;
            checkcast org.bouncycastle.asn1.DERBitString
         6: areturn
         7: .line 35
      StackMap locals:
      StackMap stack: java.lang.Exception
            astore 1 /* e */
        start local 1 // java.lang.Exception e
         8: .line 37
            new java.lang.IllegalArgumentException
            dup
            new java.lang.StringBuilder
            dup
            ldc "encoding error in getInstance: "
            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.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
            athrow
        end local 1 // java.lang.Exception e
         9: .line 41
      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   10     0   obj  Ljava/lang/Object;
            8    9     1     e  Ljava/lang/Exception;
      Exception table:
        from    to  target  type
           5     6       7  Class java.lang.Exception
    MethodParameters:
      Name  Flags
      obj   

  public static org.bouncycastle.asn1.DERBitString getInstance(org.bouncycastle.asn1.ASN1TaggedObject, boolean);
    descriptor: (Lorg/bouncycastle/asn1/ASN1TaggedObject;Z)Lorg/bouncycastle/asn1/DERBitString;
    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 58
            aload 0 /* obj */
            invokevirtual org.bouncycastle.asn1.ASN1TaggedObject.getObject:()Lorg/bouncycastle/asn1/ASN1Primitive;
            astore 2 /* o */
        start local 2 // org.bouncycastle.asn1.ASN1Primitive o
         1: .line 60
            iload 1 /* explicit */
            ifne 2
            aload 2 /* o */
            instanceof org.bouncycastle.asn1.DERBitString
            ifeq 3
         2: .line 62
      StackMap locals: org.bouncycastle.asn1.ASN1Primitive
      StackMap stack:
            aload 2 /* o */
            invokestatic org.bouncycastle.asn1.DERBitString.getInstance:(Ljava/lang/Object;)Lorg/bouncycastle/asn1/DERBitString;
            areturn
         3: .line 66
      StackMap locals:
      StackMap stack:
            aload 2 /* o */
            checkcast org.bouncycastle.asn1.ASN1OctetString
            invokevirtual org.bouncycastle.asn1.ASN1OctetString.getOctets:()[B
            invokestatic org.bouncycastle.asn1.DERBitString.fromOctetString:([B)Lorg/bouncycastle/asn1/DERBitString;
            areturn
        end local 2 // org.bouncycastle.asn1.ASN1Primitive 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/ASN1Primitive;
    MethodParameters:
          Name  Flags
      obj       
      explicit  

  protected void <init>(byte, int);
    descriptor: (BI)V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=3, locals=3, args_size=3
        start local 0 // org.bouncycastle.asn1.DERBitString this
        start local 1 // byte data
        start local 2 // int padBits
         0: .line 74
            aload 0 /* this */
            iload 1 /* data */
            invokestatic org.bouncycastle.asn1.DERBitString.toByteArray:(B)[B
            iload 2 /* padBits */
            invokespecial org.bouncycastle.asn1.DERBitString.<init>:([BI)V
         1: .line 75
            return
        end local 2 // int padBits
        end local 1 // byte data
        end local 0 // org.bouncycastle.asn1.DERBitString this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    2     0     this  Lorg/bouncycastle/asn1/DERBitString;
            0    2     1     data  B
            0    2     2  padBits  I
    MethodParameters:
         Name  Flags
      data     
      padBits  

  private static byte[] toByteArray(byte);
    descriptor: (B)[B
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=3, locals=2, args_size=1
        start local 0 // byte data
         0: .line 79
            iconst_1
            newarray 8
            astore 1 /* rv */
        start local 1 // byte[] rv
         1: .line 81
            aload 1 /* rv */
            iconst_0
            iload 0 /* data */
            bastore
         2: .line 83
            aload 1 /* rv */
            areturn
        end local 1 // byte[] rv
        end local 0 // byte data
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  data  B
            1    3     1    rv  [B
    MethodParameters:
      Name  Flags
      data  

  public void <init>(byte[], int);
    descriptor: ([BI)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=3, args_size=3
        start local 0 // org.bouncycastle.asn1.DERBitString this
        start local 1 // byte[] data
        start local 2 // int padBits
         0: .line 94
            aload 0 /* this */
            aload 1 /* data */
            iload 2 /* padBits */
            invokespecial org.bouncycastle.asn1.ASN1BitString.<init>:([BI)V
         1: .line 95
            return
        end local 2 // int padBits
        end local 1 // byte[] data
        end local 0 // org.bouncycastle.asn1.DERBitString this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    2     0     this  Lorg/bouncycastle/asn1/DERBitString;
            0    2     1     data  [B
            0    2     2  padBits  I
    MethodParameters:
         Name  Flags
      data     
      padBits  

  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.DERBitString this
        start local 1 // byte[] data
         0: .line 100
            aload 0 /* this */
            aload 1 /* data */
            iconst_0
            invokespecial org.bouncycastle.asn1.DERBitString.<init>:([BI)V
         1: .line 101
            return
        end local 1 // byte[] data
        end local 0 // org.bouncycastle.asn1.DERBitString this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/bouncycastle/asn1/DERBitString;
            0    2     1  data  [B
    MethodParameters:
      Name  Flags
      data  

  public void <init>(int);
    descriptor: (I)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // org.bouncycastle.asn1.DERBitString this
        start local 1 // int value
         0: .line 106
            aload 0 /* this */
            iload 1 /* value */
            invokestatic org.bouncycastle.asn1.DERBitString.getBytes:(I)[B
            iload 1 /* value */
            invokestatic org.bouncycastle.asn1.DERBitString.getPadBits:(I)I
            invokespecial org.bouncycastle.asn1.ASN1BitString.<init>:([BI)V
         1: .line 107
            return
        end local 1 // int value
        end local 0 // org.bouncycastle.asn1.DERBitString this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    2     0   this  Lorg/bouncycastle/asn1/DERBitString;
            0    2     1  value  I
    MethodParameters:
       Name  Flags
      value  

  public void <init>(org.bouncycastle.asn1.ASN1Encodable);
    descriptor: (Lorg/bouncycastle/asn1/ASN1Encodable;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // org.bouncycastle.asn1.DERBitString this
        start local 1 // org.bouncycastle.asn1.ASN1Encodable obj
         0: .line 113
            aload 0 /* this */
            aload 1 /* obj */
            invokeinterface org.bouncycastle.asn1.ASN1Encodable.toASN1Primitive:()Lorg/bouncycastle/asn1/ASN1Primitive;
            ldc "DER"
            invokevirtual org.bouncycastle.asn1.ASN1Primitive.getEncoded:(Ljava/lang/String;)[B
            iconst_0
            invokespecial org.bouncycastle.asn1.ASN1BitString.<init>:([BI)V
         1: .line 114
            return
        end local 1 // org.bouncycastle.asn1.ASN1Encodable obj
        end local 0 // org.bouncycastle.asn1.DERBitString this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/bouncycastle/asn1/DERBitString;
            0    2     1   obj  Lorg/bouncycastle/asn1/ASN1Encodable;
    Exceptions:
      throws java.io.IOException
    MethodParameters:
      Name  Flags
      obj   

  boolean isConstructed();
    descriptor: ()Z
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.bouncycastle.asn1.DERBitString this
         0: .line 118
            iconst_0
            ireturn
        end local 0 // org.bouncycastle.asn1.DERBitString this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/bouncycastle/asn1/DERBitString;

  int encodedLength();
    descriptor: ()I
    flags: (0x0000) 
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // org.bouncycastle.asn1.DERBitString this
         0: .line 123
            iconst_1
            aload 0 /* this */
            getfield org.bouncycastle.asn1.DERBitString.data:[B
            arraylength
            iconst_1
            iadd
            invokestatic org.bouncycastle.asn1.StreamUtil.calculateBodyLength:(I)I
            iadd
            aload 0 /* this */
            getfield org.bouncycastle.asn1.DERBitString.data:[B
            arraylength
            iadd
            iconst_1
            iadd
            ireturn
        end local 0 // org.bouncycastle.asn1.DERBitString this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/bouncycastle/asn1/DERBitString;

  void encode(org.bouncycastle.asn1.ASN1OutputStream);
    descriptor: (Lorg/bouncycastle/asn1/ASN1OutputStream;)V
    flags: (0x0000) 
    Code:
      stack=6, locals=4, args_size=2
        start local 0 // org.bouncycastle.asn1.DERBitString this
        start local 1 // org.bouncycastle.asn1.ASN1OutputStream out
         0: .line 130
            aload 0 /* this */
            getfield org.bouncycastle.asn1.DERBitString.data:[B
            aload 0 /* this */
            getfield org.bouncycastle.asn1.DERBitString.padBits:I
            invokestatic org.bouncycastle.asn1.DERBitString.derForm:([BI)[B
            astore 2 /* string */
        start local 2 // byte[] string
         1: .line 131
            aload 2 /* string */
            arraylength
            iconst_1
            iadd
            newarray 8
            astore 3 /* bytes */
        start local 3 // byte[] bytes
         2: .line 133
            aload 3 /* bytes */
            iconst_0
            aload 0 /* this */
            invokevirtual org.bouncycastle.asn1.DERBitString.getPadBits:()I
            i2b
            bastore
         3: .line 134
            aload 2 /* string */
            iconst_0
            aload 3 /* bytes */
            iconst_1
            aload 3 /* bytes */
            arraylength
            iconst_1
            isub
            invokestatic java.lang.System.arraycopy:(Ljava/lang/Object;ILjava/lang/Object;II)V
         4: .line 136
            aload 1 /* out */
            iconst_3
            aload 3 /* bytes */
            invokevirtual org.bouncycastle.asn1.ASN1OutputStream.writeEncoded:(I[B)V
         5: .line 137
            return
        end local 3 // byte[] bytes
        end local 2 // byte[] string
        end local 1 // org.bouncycastle.asn1.ASN1OutputStream out
        end local 0 // org.bouncycastle.asn1.DERBitString this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    6     0    this  Lorg/bouncycastle/asn1/DERBitString;
            0    6     1     out  Lorg/bouncycastle/asn1/ASN1OutputStream;
            1    6     2  string  [B
            2    6     3   bytes  [B
    Exceptions:
      throws java.io.IOException
    MethodParameters:
      Name  Flags
      out   

  static org.bouncycastle.asn1.DERBitString fromOctetString(byte[]);
    descriptor: ([B)Lorg/bouncycastle/asn1/DERBitString;
    flags: (0x0008) ACC_STATIC
    Code:
      stack=6, locals=3, args_size=1
        start local 0 // byte[] bytes
         0: .line 141
            aload 0 /* bytes */
            arraylength
            iconst_1
            if_icmpge 2
         1: .line 143
            new java.lang.IllegalArgumentException
            dup
            ldc "truncated BIT STRING detected"
            invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
            athrow
         2: .line 146
      StackMap locals:
      StackMap stack:
            aload 0 /* bytes */
            iconst_0
            baload
            istore 1 /* padBits */
        start local 1 // int padBits
         3: .line 147
            aload 0 /* bytes */
            arraylength
            iconst_1
            isub
            newarray 8
            astore 2 /* data */
        start local 2 // byte[] data
         4: .line 149
            aload 2 /* data */
            arraylength
            ifeq 6
         5: .line 151
            aload 0 /* bytes */
            iconst_1
            aload 2 /* data */
            iconst_0
            aload 0 /* bytes */
            arraylength
            iconst_1
            isub
            invokestatic java.lang.System.arraycopy:(Ljava/lang/Object;ILjava/lang/Object;II)V
         6: .line 154
      StackMap locals: int byte[]
      StackMap stack:
            new org.bouncycastle.asn1.DERBitString
            dup
            aload 2 /* data */
            iload 1 /* padBits */
            invokespecial org.bouncycastle.asn1.DERBitString.<init>:([BI)V
            areturn
        end local 2 // byte[] data
        end local 1 // int padBits
        end local 0 // byte[] bytes
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    7     0    bytes  [B
            3    7     1  padBits  I
            4    7     2     data  [B
    MethodParameters:
       Name  Flags
      bytes  
}
SourceFile: "DERBitString.java"