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 abstract class org.bouncycastle.asn1.ASN1Null extends org.bouncycastle.asn1.ASN1Primitive
  minor version: 0
  major version: 59
  flags: flags: (0x0421) ACC_PUBLIC, ACC_SUPER, ACC_ABSTRACT
  this_class: org.bouncycastle.asn1.ASN1Null
  super_class: org.bouncycastle.asn1.ASN1Primitive
{
  void <init>();
    descriptor: ()V
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.bouncycastle.asn1.ASN1Null this
         0: .line 14
            aload 0 /* this */
            invokespecial org.bouncycastle.asn1.ASN1Primitive.<init>:()V
         1: .line 17
            return
        end local 0 // org.bouncycastle.asn1.ASN1Null this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/bouncycastle/asn1/ASN1Null;

  public static org.bouncycastle.asn1.ASN1Null getInstance(java.lang.Object);
    descriptor: (Ljava/lang/Object;)Lorg/bouncycastle/asn1/ASN1Null;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=5, locals=2, args_size=1
        start local 0 // java.lang.Object o
         0: .line 36
            aload 0 /* o */
            instanceof org.bouncycastle.asn1.ASN1Null
            ifeq 2
         1: .line 38
            aload 0 /* o */
            checkcast org.bouncycastle.asn1.ASN1Null
            areturn
         2: .line 41
      StackMap locals:
      StackMap stack:
            aload 0 /* o */
            ifnull 9
         3: .line 45
            aload 0 /* o */
            checkcast byte[]
            invokestatic org.bouncycastle.asn1.ASN1Primitive.fromByteArray:([B)Lorg/bouncycastle/asn1/ASN1Primitive;
            invokestatic org.bouncycastle.asn1.ASN1Null.getInstance:(Ljava/lang/Object;)Lorg/bouncycastle/asn1/ASN1Null;
         4: areturn
         5: .line 47
      StackMap locals:
      StackMap stack: java.io.IOException
            astore 1 /* e */
        start local 1 // java.io.IOException e
         6: .line 49
            new java.lang.IllegalArgumentException
            dup
            new java.lang.StringBuilder
            dup
            ldc "failed to construct NULL 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 51
      StackMap locals:
      StackMap stack: java.lang.ClassCastException
            pop
         8: .line 53
            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 /* o */
            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
         9: .line 57
      StackMap locals:
      StackMap stack:
            aconst_null
            areturn
        end local 0 // java.lang.Object o
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0   10     0     o  Ljava/lang/Object;
            6    7     1     e  Ljava/io/IOException;
      Exception table:
        from    to  target  type
           3     4       5  Class java.io.IOException
           3     4       7  Class java.lang.ClassCastException
    MethodParameters:
      Name  Flags
      o     

  public int hashCode();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.bouncycastle.asn1.ASN1Null this
         0: .line 62
            iconst_m1
            ireturn
        end local 0 // org.bouncycastle.asn1.ASN1Null this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/bouncycastle/asn1/ASN1Null;

  boolean asn1Equals(org.bouncycastle.asn1.ASN1Primitive);
    descriptor: (Lorg/bouncycastle/asn1/ASN1Primitive;)Z
    flags: (0x0000) 
    Code:
      stack=1, locals=2, args_size=2
        start local 0 // org.bouncycastle.asn1.ASN1Null this
        start local 1 // org.bouncycastle.asn1.ASN1Primitive o
         0: .line 68
            aload 1 /* o */
            instanceof org.bouncycastle.asn1.ASN1Null
            ifne 2
         1: .line 70
            iconst_0
            ireturn
         2: .line 73
      StackMap locals:
      StackMap stack:
            iconst_1
            ireturn
        end local 1 // org.bouncycastle.asn1.ASN1Primitive o
        end local 0 // org.bouncycastle.asn1.ASN1Null this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lorg/bouncycastle/asn1/ASN1Null;
            0    3     1     o  Lorg/bouncycastle/asn1/ASN1Primitive;
    MethodParameters:
      Name  Flags
      o     

  abstract void encode(org.bouncycastle.asn1.ASN1OutputStream);
    descriptor: (Lorg/bouncycastle/asn1/ASN1OutputStream;)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.ASN1Null this
         0: .line 81
            ldc "NULL"
            areturn
        end local 0 // org.bouncycastle.asn1.ASN1Null this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/bouncycastle/asn1/ASN1Null;
}
SourceFile: "ASN1Null.java"