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. 
public class org.bouncycastle.pkcs.bc.BcPKCS12MacCalculatorBuilderProvider implements org.bouncycastle.pkcs.PKCS12MacCalculatorBuilderProvider
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.bouncycastle.pkcs.bc.BcPKCS12MacCalculatorBuilderProvider
  super_class: java.lang.Object
{
  private org.bouncycastle.operator.bc.BcDigestProvider digestProvider;
    descriptor: Lorg/bouncycastle/operator/bc/BcDigestProvider;
    flags: (0x0002) ACC_PRIVATE

  public void <init>(org.bouncycastle.operator.bc.BcDigestProvider);
    descriptor: (Lorg/bouncycastle/operator/bc/BcDigestProvider;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.bouncycastle.pkcs.bc.BcPKCS12MacCalculatorBuilderProvider this
        start local 1 // org.bouncycastle.operator.bc.BcDigestProvider digestProvider
         0: .line 17
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 19
            aload 0 /* this */
            aload 1 /* digestProvider */
            putfield org.bouncycastle.pkcs.bc.BcPKCS12MacCalculatorBuilderProvider.digestProvider:Lorg/bouncycastle/operator/bc/BcDigestProvider;
         2: .line 20
            return
        end local 1 // org.bouncycastle.operator.bc.BcDigestProvider digestProvider
        end local 0 // org.bouncycastle.pkcs.bc.BcPKCS12MacCalculatorBuilderProvider this
      LocalVariableTable:
        Start  End  Slot            Name  Signature
            0    3     0            this  Lorg/bouncycastle/pkcs/bc/BcPKCS12MacCalculatorBuilderProvider;
            0    3     1  digestProvider  Lorg/bouncycastle/operator/bc/BcDigestProvider;
    MethodParameters:
                Name  Flags
      digestProvider  

  public org.bouncycastle.pkcs.PKCS12MacCalculatorBuilder get(org.bouncycastle.asn1.x509.AlgorithmIdentifier);
    descriptor: (Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;)Lorg/bouncycastle/pkcs/PKCS12MacCalculatorBuilder;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=2, args_size=2
        start local 0 // org.bouncycastle.pkcs.bc.BcPKCS12MacCalculatorBuilderProvider this
        start local 1 // org.bouncycastle.asn1.x509.AlgorithmIdentifier algorithmIdentifier
         0: .line 24
            new org.bouncycastle.pkcs.bc.BcPKCS12MacCalculatorBuilderProvider$1
            dup
            aload 0 /* this */
            aload 1 /* algorithmIdentifier */
            invokespecial org.bouncycastle.pkcs.bc.BcPKCS12MacCalculatorBuilderProvider$1.<init>:(Lorg/bouncycastle/pkcs/bc/BcPKCS12MacCalculatorBuilderProvider;Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;)V
            areturn
        end local 1 // org.bouncycastle.asn1.x509.AlgorithmIdentifier algorithmIdentifier
        end local 0 // org.bouncycastle.pkcs.bc.BcPKCS12MacCalculatorBuilderProvider this
      LocalVariableTable:
        Start  End  Slot                 Name  Signature
            0    1     0                 this  Lorg/bouncycastle/pkcs/bc/BcPKCS12MacCalculatorBuilderProvider;
            0    1     1  algorithmIdentifier  Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;
    MethodParameters:
                     Name  Flags
      algorithmIdentifier  final
}
SourceFile: "BcPKCS12MacCalculatorBuilderProvider.java"
NestMembers:
  org.bouncycastle.pkcs.bc.BcPKCS12MacCalculatorBuilderProvider$1
InnerClasses:
  org.bouncycastle.pkcs.bc.BcPKCS12MacCalculatorBuilderProvider$1