http://github.com/google/tink: Tink is a small cryptographic library that provides a safe, simple, agile and fast way to accomplish some common cryptographic tasks. 
public class com.google.crypto.tink.prf.PrfSetWrapper implements com.google.crypto.tink.PrimitiveWrapper<com.google.crypto.tink.prf.Prf, com.google.crypto.tink.prf.PrfSet>
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: com.google.crypto.tink.prf.PrfSetWrapper
  super_class: java.lang.Object
{
  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // com.google.crypto.tink.prf.PrfSetWrapper this
         0: .line 19
            new java.lang.Error
            dup
            ldc "Unresolved compilation problems: \n\tThe import com.google.crypto.tink.proto cannot be resolved\n\tThe import com.google.errorprone cannot be resolved\n\tImmutable cannot be resolved to a type\n\tThe method getOutputPrefixType() from the type PrimitiveSet.Entry<Prf> refers to the missing type OutputPrefixType\n\tOutputPrefixType cannot be resolved to a variable\n"
            invokespecial java.lang.Error.<init>:(Ljava/lang/String;)V
            athrow
        end local 0 // com.google.crypto.tink.prf.PrfSetWrapper this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/crypto/tink/prf/PrfSetWrapper;

  public com.google.crypto.tink.prf.PrfSet wrap(com.google.crypto.tink.PrimitiveSet<com.google.crypto.tink.prf.Prf>);
    descriptor: (Lcom/google/crypto/tink/PrimitiveSet;)Lcom/google/crypto/tink/prf/PrfSet;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // com.google.crypto.tink.prf.PrfSetWrapper this
         0: .line 76
            new java.lang.Error
            dup
            ldc "Unresolved compilation problem: \n"
            invokespecial java.lang.Error.<init>:(Ljava/lang/String;)V
            athrow
        end local 0 // com.google.crypto.tink.prf.PrfSetWrapper this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/crypto/tink/prf/PrfSetWrapper;
    Exceptions:
      throws java.security.GeneralSecurityException
    Signature: (Lcom/google/crypto/tink/PrimitiveSet<Lcom/google/crypto/tink/prf/Prf;>;)Lcom/google/crypto/tink/prf/PrfSet;
    MethodParameters:
      Name  Flags
      set   

  public java.lang.Class<com.google.crypto.tink.prf.PrfSet> getPrimitiveClass();
    descriptor: ()Ljava/lang/Class;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // com.google.crypto.tink.prf.PrfSetWrapper this
         0: .line 81
            new java.lang.Error
            dup
            ldc "Unresolved compilation problem: \n"
            invokespecial java.lang.Error.<init>:(Ljava/lang/String;)V
            athrow
        end local 0 // com.google.crypto.tink.prf.PrfSetWrapper this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/crypto/tink/prf/PrfSetWrapper;
    Signature: ()Ljava/lang/Class<Lcom/google/crypto/tink/prf/PrfSet;>;

  public java.lang.Class<com.google.crypto.tink.prf.Prf> getInputPrimitiveClass();
    descriptor: ()Ljava/lang/Class;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // com.google.crypto.tink.prf.PrfSetWrapper this
         0: .line 86
            new java.lang.Error
            dup
            ldc "Unresolved compilation problem: \n"
            invokespecial java.lang.Error.<init>:(Ljava/lang/String;)V
            athrow
        end local 0 // com.google.crypto.tink.prf.PrfSetWrapper this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/crypto/tink/prf/PrfSetWrapper;
    Signature: ()Ljava/lang/Class<Lcom/google/crypto/tink/prf/Prf;>;

  public static void register();
    descriptor: ()V
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=3, locals=0, args_size=0
         0: .line 90
            new java.lang.Error
            dup
            ldc "Unresolved compilation problem: \n"
            invokespecial java.lang.Error.<init>:(Ljava/lang/String;)V
            athrow
      LocalVariableTable:
        Start  End  Slot  Name  Signature
    Exceptions:
      throws java.security.GeneralSecurityException
}
Signature: Ljava/lang/Object;Lcom/google/crypto/tink/PrimitiveWrapper<Lcom/google/crypto/tink/prf/Prf;Lcom/google/crypto/tink/prf/PrfSet;>;
SourceFile: "PrfSetWrapper.java"
NestMembers:
  com.google.crypto.tink.prf.PrfSetWrapper$WrappedPrfSet
InnerClasses:
  private WrappedPrfSet = com.google.crypto.tink.prf.PrfSetWrapper$WrappedPrfSet of com.google.crypto.tink.prf.PrfSetWrapper
    RuntimeInvisibleAnnotations: 
      Immutable()