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.DEROutputStream extends org.bouncycastle.asn1.ASN1OutputStream
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.bouncycastle.asn1.DEROutputStream
  super_class: org.bouncycastle.asn1.ASN1OutputStream
{
  public void <init>(java.io.OutputStream);
    descriptor: (Ljava/io/OutputStream;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.bouncycastle.asn1.DEROutputStream this
        start local 1 // java.io.OutputStream os
         0: .line 15
            aload 0 /* this */
            aload 1 /* os */
            invokespecial org.bouncycastle.asn1.ASN1OutputStream.<init>:(Ljava/io/OutputStream;)V
         1: .line 16
            return
        end local 1 // java.io.OutputStream os
        end local 0 // org.bouncycastle.asn1.DEROutputStream this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/bouncycastle/asn1/DEROutputStream;
            0    2     1    os  Ljava/io/OutputStream;
    MethodParameters:
      Name  Flags
      os    

  public void writeObject(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.DEROutputStream this
        start local 1 // org.bouncycastle.asn1.ASN1Encodable obj
         0: .line 22
            aload 1 /* obj */
            ifnull 3
         1: .line 24
            aload 1 /* obj */
            invokeinterface org.bouncycastle.asn1.ASN1Encodable.toASN1Primitive:()Lorg/bouncycastle/asn1/ASN1Primitive;
            invokevirtual org.bouncycastle.asn1.ASN1Primitive.toDERObject:()Lorg/bouncycastle/asn1/ASN1Primitive;
            aload 0 /* this */
            invokevirtual org.bouncycastle.asn1.ASN1Primitive.encode:(Lorg/bouncycastle/asn1/ASN1OutputStream;)V
         2: .line 25
            goto 4
         3: .line 28
      StackMap locals:
      StackMap stack:
            new java.io.IOException
            dup
            ldc "null object detected"
            invokespecial java.io.IOException.<init>:(Ljava/lang/String;)V
            athrow
         4: .line 30
      StackMap locals:
      StackMap stack:
            return
        end local 1 // org.bouncycastle.asn1.ASN1Encodable obj
        end local 0 // org.bouncycastle.asn1.DEROutputStream this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    5     0  this  Lorg/bouncycastle/asn1/DEROutputStream;
            0    5     1   obj  Lorg/bouncycastle/asn1/ASN1Encodable;
    Exceptions:
      throws java.io.IOException
    MethodParameters:
      Name  Flags
      obj   

  org.bouncycastle.asn1.ASN1OutputStream getDERSubStream();
    descriptor: ()Lorg/bouncycastle/asn1/ASN1OutputStream;
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.bouncycastle.asn1.DEROutputStream this
         0: .line 34
            aload 0 /* this */
            areturn
        end local 0 // org.bouncycastle.asn1.DEROutputStream this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/bouncycastle/asn1/DEROutputStream;

  org.bouncycastle.asn1.ASN1OutputStream getDLSubStream();
    descriptor: ()Lorg/bouncycastle/asn1/ASN1OutputStream;
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.bouncycastle.asn1.DEROutputStream this
         0: .line 39
            aload 0 /* this */
            areturn
        end local 0 // org.bouncycastle.asn1.DEROutputStream this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/bouncycastle/asn1/DEROutputStream;
}
SourceFile: "DEROutputStream.java"