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 final class com.google.crypto.tink.JsonKeysetWriter implements com.google.crypto.tink.KeysetWriter
  minor version: 0
  major version: 59
  flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
  this_class: com.google.crypto.tink.JsonKeysetWriter
  super_class: java.lang.Object
{
  private static final java.nio.charset.Charset UTF_8;
    descriptor: Ljava/nio/charset/Charset;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  private final java.io.OutputStream outputStream;
    descriptor: Ljava/io/OutputStream;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 42
            ldc "UTF-8"
            invokestatic java.nio.charset.Charset.forName:(Ljava/lang/String;)Ljava/nio/charset/Charset;
            putstatic com.google.crypto.tink.JsonKeysetWriter.UTF_8:Ljava/nio/charset/Charset;
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  private void <init>(java.io.OutputStream);
    descriptor: (Ljava/io/OutputStream;)V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.google.crypto.tink.JsonKeysetWriter this
        start local 1 // java.io.OutputStream stream
         0: .line 46
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 47
            aload 0 /* this */
            aload 1 /* stream */
            putfield com.google.crypto.tink.JsonKeysetWriter.outputStream:Ljava/io/OutputStream;
         2: .line 48
            return
        end local 1 // java.io.OutputStream stream
        end local 0 // com.google.crypto.tink.JsonKeysetWriter this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    3     0    this  Lcom/google/crypto/tink/JsonKeysetWriter;
            0    3     1  stream  Ljava/io/OutputStream;
    MethodParameters:
        Name  Flags
      stream  

  public static com.google.crypto.tink.KeysetWriter withOutputStream(java.io.OutputStream);
    descriptor: (Ljava/io/OutputStream;)Lcom/google/crypto/tink/KeysetWriter;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // java.io.OutputStream stream
         0: .line 56
            new com.google.crypto.tink.JsonKeysetWriter
            dup
            aload 0 /* stream */
            invokespecial com.google.crypto.tink.JsonKeysetWriter.<init>:(Ljava/io/OutputStream;)V
            areturn
        end local 0 // java.io.OutputStream stream
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    1     0  stream  Ljava/io/OutputStream;
    MethodParameters:
        Name  Flags
      stream  

  public static com.google.crypto.tink.KeysetWriter withFile(java.io.File);
    descriptor: (Ljava/io/File;)Lcom/google/crypto/tink/KeysetWriter;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=5, locals=1, args_size=1
        start local 0 // java.io.File file
         0: .line 61
            new com.google.crypto.tink.JsonKeysetWriter
            dup
            new java.io.FileOutputStream
            dup
            aload 0 /* file */
            invokespecial java.io.FileOutputStream.<init>:(Ljava/io/File;)V
            invokespecial com.google.crypto.tink.JsonKeysetWriter.<init>:(Ljava/io/OutputStream;)V
            areturn
        end local 0 // java.io.File file
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  file  Ljava/io/File;
    Exceptions:
      throws java.io.IOException
    MethodParameters:
      Name  Flags
      file  

  public static com.google.crypto.tink.KeysetWriter withPath(java.lang.String);
    descriptor: (Ljava/lang/String;)Lcom/google/crypto/tink/KeysetWriter;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // java.lang.String path
         0: .line 66
            new java.io.File
            dup
            aload 0 /* path */
            invokespecial java.io.File.<init>:(Ljava/lang/String;)V
            invokestatic com.google.crypto.tink.JsonKeysetWriter.withFile:(Ljava/io/File;)Lcom/google/crypto/tink/KeysetWriter;
            areturn
        end local 0 // java.lang.String path
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  path  Ljava/lang/String;
    Exceptions:
      throws java.io.IOException
    MethodParameters:
      Name  Flags
      path  

  public static com.google.crypto.tink.KeysetWriter withPath(java.nio.file.Path);
    descriptor: (Ljava/nio/file/Path;)Lcom/google/crypto/tink/KeysetWriter;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // java.nio.file.Path path
         0: .line 75
            aload 0 /* path */
            invokeinterface java.nio.file.Path.toFile:()Ljava/io/File;
            invokestatic com.google.crypto.tink.JsonKeysetWriter.withFile:(Ljava/io/File;)Lcom/google/crypto/tink/KeysetWriter;
            areturn
        end local 0 // java.nio.file.Path path
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  path  Ljava/nio/file/Path;
    Exceptions:
      throws java.io.IOException
    MethodParameters:
      Name  Flags
      path  

  public void write(Keyset);
    descriptor: (LKeyset;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // com.google.crypto.tink.JsonKeysetWriter this
         0: .line 79
            new java.lang.Error
            dup
            ldc "Unresolved compilation problem: \n\tKeyset cannot be resolved to a type\n"
            invokespecial java.lang.Error.<init>:(Ljava/lang/String;)V
            athrow
        end local 0 // com.google.crypto.tink.JsonKeysetWriter this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/crypto/tink/JsonKeysetWriter;
    Exceptions:
      throws java.io.IOException
    MethodParameters:
        Name  Flags
      keyset  

  public void write(EncryptedKeyset);
    descriptor: (LEncryptedKeyset;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // com.google.crypto.tink.JsonKeysetWriter this
         0: .line 90
            new java.lang.Error
            dup
            ldc "Unresolved compilation problem: \n\tEncryptedKeyset cannot be resolved to a type\n"
            invokespecial java.lang.Error.<init>:(Ljava/lang/String;)V
            athrow
        end local 0 // com.google.crypto.tink.JsonKeysetWriter this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/crypto/tink/JsonKeysetWriter;
    Exceptions:
      throws java.io.IOException
    MethodParameters:
        Name  Flags
      keyset  

  private long toUnsignedLong(int);
    descriptor: (I)J
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=4, locals=2, args_size=2
        start local 0 // com.google.crypto.tink.JsonKeysetWriter this
        start local 1 // int x
         0: .line 101
            iload 1 /* x */
            i2l
            ldc 4294967295
            land
            lreturn
        end local 1 // int x
        end local 0 // com.google.crypto.tink.JsonKeysetWriter this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/crypto/tink/JsonKeysetWriter;
            0    1     1     x  I
    MethodParameters:
      Name  Flags
      x     

  org.json.JSONObject toJson(Keyset);
    descriptor: (LKeyset;)Lorg/json/JSONObject;
    flags: (0x0000) 
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // com.google.crypto.tink.JsonKeysetWriter this
         0: .line 104
            new java.lang.Error
            dup
            ldc "Unresolved compilation problems: \n\tKeyset cannot be resolved to a type\n\tKeyset cannot be resolved to a type\n"
            invokespecial java.lang.Error.<init>:(Ljava/lang/String;)V
            athrow
        end local 0 // com.google.crypto.tink.JsonKeysetWriter this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/crypto/tink/JsonKeysetWriter;
    Exceptions:
      throws org.json.JSONException
    MethodParameters:
        Name  Flags
      keyset  

  org.json.JSONObject toJson(Keyset.Key);
    descriptor: (LKeyset/Key;)Lorg/json/JSONObject;
    flags: (0x0000) 
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // com.google.crypto.tink.JsonKeysetWriter this
         0: .line 115
            new java.lang.Error
            dup
            ldc "Unresolved compilation problem: \n\tKeyset cannot be resolved to a type\n"
            invokespecial java.lang.Error.<init>:(Ljava/lang/String;)V
            athrow
        end local 0 // com.google.crypto.tink.JsonKeysetWriter this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/crypto/tink/JsonKeysetWriter;
    Exceptions:
      throws org.json.JSONException
    MethodParameters:
      Name  Flags
      key   

  org.json.JSONObject toJson(KeyData);
    descriptor: (LKeyData;)Lorg/json/JSONObject;
    flags: (0x0000) 
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // com.google.crypto.tink.JsonKeysetWriter this
         0: .line 123
            new java.lang.Error
            dup
            ldc "Unresolved compilation problem: \n\tKeyData cannot be resolved to a type\n"
            invokespecial java.lang.Error.<init>:(Ljava/lang/String;)V
            athrow
        end local 0 // com.google.crypto.tink.JsonKeysetWriter this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/crypto/tink/JsonKeysetWriter;
    Exceptions:
      throws org.json.JSONException
    MethodParameters:
         Name  Flags
      keyData  

  org.json.JSONObject toJson(EncryptedKeyset);
    descriptor: (LEncryptedKeyset;)Lorg/json/JSONObject;
    flags: (0x0000) 
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // com.google.crypto.tink.JsonKeysetWriter this
         0: .line 130
            new java.lang.Error
            dup
            ldc "Unresolved compilation problem: \n\tEncryptedKeyset cannot be resolved to a type\n"
            invokespecial java.lang.Error.<init>:(Ljava/lang/String;)V
            athrow
        end local 0 // com.google.crypto.tink.JsonKeysetWriter this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/crypto/tink/JsonKeysetWriter;
    Exceptions:
      throws org.json.JSONException
    MethodParameters:
        Name  Flags
      keyset  

  org.json.JSONObject toJson(KeysetInfo);
    descriptor: (LKeysetInfo;)Lorg/json/JSONObject;
    flags: (0x0000) 
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // com.google.crypto.tink.JsonKeysetWriter this
         0: .line 136
            new java.lang.Error
            dup
            ldc "Unresolved compilation problems: \n\tKeysetInfo cannot be resolved to a type\n\tKeysetInfo cannot be resolved to a type\n"
            invokespecial java.lang.Error.<init>:(Ljava/lang/String;)V
            athrow
        end local 0 // com.google.crypto.tink.JsonKeysetWriter this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/crypto/tink/JsonKeysetWriter;
    Exceptions:
      throws org.json.JSONException
    MethodParameters:
            Name  Flags
      keysetInfo  

  org.json.JSONObject toJson(KeysetInfo.KeyInfo);
    descriptor: (LKeysetInfo/KeyInfo;)Lorg/json/JSONObject;
    flags: (0x0000) 
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // com.google.crypto.tink.JsonKeysetWriter this
         0: .line 147
            new java.lang.Error
            dup
            ldc "Unresolved compilation problem: \n\tKeysetInfo cannot be resolved to a type\n"
            invokespecial java.lang.Error.<init>:(Ljava/lang/String;)V
            athrow
        end local 0 // com.google.crypto.tink.JsonKeysetWriter this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/crypto/tink/JsonKeysetWriter;
    Exceptions:
      throws org.json.JSONException
    MethodParameters:
         Name  Flags
      keyInfo  

  public void write(Keyset);
    descriptor: (LKeyset;)V
    flags: (0x1001) ACC_PUBLIC, ACC_SYNTHETIC
    Code:
      stack=3, locals=2, args_size=2
         0: .line 41
            new java.lang.Error
            dup
            ldc "Unresolved compilation problem: \n\tThe type JsonKeysetWriter must implement the inherited abstract method KeysetWriter.write(Keyset)\n"
            invokespecial java.lang.Error.<init>:(Ljava/lang/String;)V
            athrow
      LocalVariableTable:
        Start  End  Slot  Name  Signature
    Exceptions:
      throws java.io.IOException
    MethodParameters:
      Name  Flags
            

  public void write(EncryptedKeyset);
    descriptor: (LEncryptedKeyset;)V
    flags: (0x1001) ACC_PUBLIC, ACC_SYNTHETIC
    Code:
      stack=3, locals=2, args_size=2
         0: .line 41
            new java.lang.Error
            dup
            ldc "Unresolved compilation problem: \n\tThe type JsonKeysetWriter must implement the inherited abstract method KeysetWriter.write(EncryptedKeyset)\n"
            invokespecial java.lang.Error.<init>:(Ljava/lang/String;)V
            athrow
      LocalVariableTable:
        Start  End  Slot  Name  Signature
    Exceptions:
      throws java.io.IOException
    MethodParameters:
      Name  Flags
            
}
SourceFile: "JsonKeysetWriter.java"