ASN1Null (Bouncy Castle Library 1.68 API Specification)

java.lang.Object
- org.bouncycastle.asn1.ASN1Object
- - org.bouncycastle.asn1.ASN1Primitive
  - - org.bouncycastle.asn1.ASN1Null

All Implemented Interfaces:

ASN1Encodable, Encodable

Direct Known Subclasses:

DERNull
```
public abstract class ASN1Null
extends ASN1Primitive
```
A NULL object - use DERNull.INSTANCE for populating structures.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static ASN1Null`	`getInstance(java.lang.Object o)`	Return an instance of ASN.1 NULL from the passed in object.
`int`	`hashCode()`
`java.lang.String`	`toString()`

Methods inherited from class org.bouncycastle.asn1.ASN1Primitive
encodeTo, encodeTo, equals, equals, equals, fromByteArray, toASN1Primitive

Methods inherited from class org.bouncycastle.asn1.ASN1Object
getEncoded, getEncoded, hasEncodedTagValue

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

- Method Detail
  - getInstance
```
public static ASN1Null getInstance(java.lang.Object o)
```
    Return an instance of ASN.1 NULL from the passed in object.
    Accepted inputs:
    
    null → null
    ASN1Null object
    a byte[] containing ASN.1 NULL object
    Parameters:
    
    o - object to be converted.
    
    Returns:
    
    an instance of ASN1Null, or null.
    
    Throws:
    
    java.lang.IllegalArgumentException - if the object cannot be converted.
  - hashCode
```
public int hashCode()
```
    Specified by:
    
    hashCode in class ASN1Primitive
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class java.lang.Object