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 abstract class org.bouncycastle.operator.SymmetricKeyWrapper implements org.bouncycastle.operator.KeyWrapper
  minor version: 0
  major version: 59
  flags: flags: (0x0421) ACC_PUBLIC, ACC_SUPER, ACC_ABSTRACT
  this_class: org.bouncycastle.operator.SymmetricKeyWrapper
  super_class: java.lang.Object
{
  private org.bouncycastle.asn1.x509.AlgorithmIdentifier algorithmId;
    descriptor: Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;
    flags: (0x0002) ACC_PRIVATE

  protected void <init>(org.bouncycastle.asn1.x509.AlgorithmIdentifier);
    descriptor: (Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;)V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.bouncycastle.operator.SymmetricKeyWrapper this
        start local 1 // org.bouncycastle.asn1.x509.AlgorithmIdentifier algorithmId
         0: .line 10
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 12
            aload 0 /* this */
            aload 1 /* algorithmId */
            putfield org.bouncycastle.operator.SymmetricKeyWrapper.algorithmId:Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;
         2: .line 13
            return
        end local 1 // org.bouncycastle.asn1.x509.AlgorithmIdentifier algorithmId
        end local 0 // org.bouncycastle.operator.SymmetricKeyWrapper this
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0    3     0         this  Lorg/bouncycastle/operator/SymmetricKeyWrapper;
            0    3     1  algorithmId  Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;
    MethodParameters:
             Name  Flags
      algorithmId  

  public org.bouncycastle.asn1.x509.AlgorithmIdentifier getAlgorithmIdentifier();
    descriptor: ()Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.bouncycastle.operator.SymmetricKeyWrapper this
         0: .line 17
            aload 0 /* this */
            getfield org.bouncycastle.operator.SymmetricKeyWrapper.algorithmId:Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;
            areturn
        end local 0 // org.bouncycastle.operator.SymmetricKeyWrapper this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/bouncycastle/operator/SymmetricKeyWrapper;
}
SourceFile: "SymmetricKeyWrapper.java"