http://www.bouncycastle.org/java.html: The Bouncy Castle Java APIs for CMS, PKCS, EAC, TSP, CMP, CRMF, OCSP, and certificate generation. This jar contains APIs for JDK 1.5 to JDK 1.8. The APIs can be used in conjunction with a JCE/JCA provider such as the one provided with the Bouncy Castle Cryptography APIs.
  • The Legion of the Bouncy Castle Inc. 
class org.bouncycastle.operator.jcajce.JcaDigestCalculatorProviderBuilder$DigestOutputStream extends java.io.OutputStream
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: org.bouncycastle.operator.jcajce.JcaDigestCalculatorProviderBuilder$DigestOutputStream
  super_class: java.io.OutputStream
{
  private java.security.MessageDigest dig;
    descriptor: Ljava/security/MessageDigest;
    flags: (0x0002) ACC_PRIVATE

  final org.bouncycastle.operator.jcajce.JcaDigestCalculatorProviderBuilder this$0;
    descriptor: Lorg/bouncycastle/operator/jcajce/JcaDigestCalculatorProviderBuilder;
    flags: (0x1010) ACC_FINAL, ACC_SYNTHETIC

  void <init>(org.bouncycastle.operator.jcajce.JcaDigestCalculatorProviderBuilder, java.security.MessageDigest);
    descriptor: (Lorg/bouncycastle/operator/jcajce/JcaDigestCalculatorProviderBuilder;Ljava/security/MessageDigest;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // org.bouncycastle.operator.jcajce.JcaDigestCalculatorProviderBuilder$DigestOutputStream this
        start local 2 // java.security.MessageDigest dig
         0: .line 87
            aload 0 /* this */
            aload 1
            putfield org.bouncycastle.operator.jcajce.JcaDigestCalculatorProviderBuilder$DigestOutputStream.this$0:Lorg/bouncycastle/operator/jcajce/JcaDigestCalculatorProviderBuilder;
         1: .line 86
            aload 0 /* this */
            invokespecial java.io.OutputStream.<init>:()V
         2: .line 88
            aload 0 /* this */
            aload 2 /* dig */
            putfield org.bouncycastle.operator.jcajce.JcaDigestCalculatorProviderBuilder$DigestOutputStream.dig:Ljava/security/MessageDigest;
         3: .line 89
            return
        end local 2 // java.security.MessageDigest dig
        end local 0 // org.bouncycastle.operator.jcajce.JcaDigestCalculatorProviderBuilder$DigestOutputStream this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    4     0  this  Lorg/bouncycastle/operator/jcajce/JcaDigestCalculatorProviderBuilder$DigestOutputStream;
            0    4     2   dig  Ljava/security/MessageDigest;
    MethodParameters:
        Name  Flags
      this$0  final
      dig     

  public void write(byte[], int, int);
    descriptor: ([BII)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=4, args_size=4
        start local 0 // org.bouncycastle.operator.jcajce.JcaDigestCalculatorProviderBuilder$DigestOutputStream this
        start local 1 // byte[] bytes
        start local 2 // int off
        start local 3 // int len
         0: .line 94
            aload 0 /* this */
            getfield org.bouncycastle.operator.jcajce.JcaDigestCalculatorProviderBuilder$DigestOutputStream.dig:Ljava/security/MessageDigest;
            aload 1 /* bytes */
            iload 2 /* off */
            iload 3 /* len */
            invokevirtual java.security.MessageDigest.update:([BII)V
         1: .line 95
            return
        end local 3 // int len
        end local 2 // int off
        end local 1 // byte[] bytes
        end local 0 // org.bouncycastle.operator.jcajce.JcaDigestCalculatorProviderBuilder$DigestOutputStream this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    2     0   this  Lorg/bouncycastle/operator/jcajce/JcaDigestCalculatorProviderBuilder$DigestOutputStream;
            0    2     1  bytes  [B
            0    2     2    off  I
            0    2     3    len  I
    Exceptions:
      throws java.io.IOException
    MethodParameters:
       Name  Flags
      bytes  
      off    
      len    

  public void write(byte[]);
    descriptor: ([B)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.bouncycastle.operator.jcajce.JcaDigestCalculatorProviderBuilder$DigestOutputStream this
        start local 1 // byte[] bytes
         0: .line 100
            aload 0 /* this */
            getfield org.bouncycastle.operator.jcajce.JcaDigestCalculatorProviderBuilder$DigestOutputStream.dig:Ljava/security/MessageDigest;
            aload 1 /* bytes */
            invokevirtual java.security.MessageDigest.update:([B)V
         1: .line 101
            return
        end local 1 // byte[] bytes
        end local 0 // org.bouncycastle.operator.jcajce.JcaDigestCalculatorProviderBuilder$DigestOutputStream this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    2     0   this  Lorg/bouncycastle/operator/jcajce/JcaDigestCalculatorProviderBuilder$DigestOutputStream;
            0    2     1  bytes  [B
    Exceptions:
      throws java.io.IOException
    MethodParameters:
       Name  Flags
      bytes  

  public void write(int);
    descriptor: (I)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.bouncycastle.operator.jcajce.JcaDigestCalculatorProviderBuilder$DigestOutputStream this
        start local 1 // int b
         0: .line 106
            aload 0 /* this */
            getfield org.bouncycastle.operator.jcajce.JcaDigestCalculatorProviderBuilder$DigestOutputStream.dig:Ljava/security/MessageDigest;
            iload 1 /* b */
            i2b
            invokevirtual java.security.MessageDigest.update:(B)V
         1: .line 107
            return
        end local 1 // int b
        end local 0 // org.bouncycastle.operator.jcajce.JcaDigestCalculatorProviderBuilder$DigestOutputStream this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/bouncycastle/operator/jcajce/JcaDigestCalculatorProviderBuilder$DigestOutputStream;
            0    2     1     b  I
    Exceptions:
      throws java.io.IOException
    MethodParameters:
      Name  Flags
      b     

  byte[] getDigest();
    descriptor: ()[B
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.bouncycastle.operator.jcajce.JcaDigestCalculatorProviderBuilder$DigestOutputStream this
         0: .line 111
            aload 0 /* this */
            getfield org.bouncycastle.operator.jcajce.JcaDigestCalculatorProviderBuilder$DigestOutputStream.dig:Ljava/security/MessageDigest;
            invokevirtual java.security.MessageDigest.digest:()[B
            areturn
        end local 0 // org.bouncycastle.operator.jcajce.JcaDigestCalculatorProviderBuilder$DigestOutputStream this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/bouncycastle/operator/jcajce/JcaDigestCalculatorProviderBuilder$DigestOutputStream;
}
SourceFile: "JcaDigestCalculatorProviderBuilder.java"
NestHost: org.bouncycastle.operator.jcajce.JcaDigestCalculatorProviderBuilder
InnerClasses:
  private DigestOutputStream = org.bouncycastle.operator.jcajce.JcaDigestCalculatorProviderBuilder$DigestOutputStream of org.bouncycastle.operator.jcajce.JcaDigestCalculatorProviderBuilder