http://nexus.sonatype.org/oss-repository-hosting.html/vertx-parent/vertx-ext/vertx-ext-parent/vertx-mqtt: Vert.x MQTT reactive client and server (Eclipse) 
public class io.vertx.mqtt.MqttWill
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: io.vertx.mqtt.MqttWill
  super_class: java.lang.Object
{
  private final boolean isWillFlag;
    descriptor: Z
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final java.lang.String willTopic;
    descriptor: Ljava/lang/String;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final byte[] willMessage;
    descriptor: [B
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final int willQos;
    descriptor: I
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final boolean isWillRetain;
    descriptor: Z
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  public void <init>(boolean, java.lang.String, byte[], int, boolean);
    descriptor: (ZLjava/lang/String;[BIZ)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=6, args_size=6
        start local 0 // io.vertx.mqtt.MqttWill this
        start local 1 // boolean isWillFlag
        start local 2 // java.lang.String willTopic
        start local 3 // byte[] willMessage
        start local 4 // int willQos
        start local 5 // boolean isWillRetain
         0: .line 45
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 46
            aload 0 /* this */
            iload 1 /* isWillFlag */
            putfield io.vertx.mqtt.MqttWill.isWillFlag:Z
         2: .line 47
            aload 0 /* this */
            aload 2 /* willTopic */
            putfield io.vertx.mqtt.MqttWill.willTopic:Ljava/lang/String;
         3: .line 48
            aload 0 /* this */
            aload 3 /* willMessage */
            putfield io.vertx.mqtt.MqttWill.willMessage:[B
         4: .line 49
            aload 0 /* this */
            iload 4 /* willQos */
            putfield io.vertx.mqtt.MqttWill.willQos:I
         5: .line 50
            aload 0 /* this */
            iload 5 /* isWillRetain */
            putfield io.vertx.mqtt.MqttWill.isWillRetain:Z
         6: .line 51
            return
        end local 5 // boolean isWillRetain
        end local 4 // int willQos
        end local 3 // byte[] willMessage
        end local 2 // java.lang.String willTopic
        end local 1 // boolean isWillFlag
        end local 0 // io.vertx.mqtt.MqttWill this
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0    7     0          this  Lio/vertx/mqtt/MqttWill;
            0    7     1    isWillFlag  Z
            0    7     2     willTopic  Ljava/lang/String;
            0    7     3   willMessage  [B
            0    7     4       willQos  I
            0    7     5  isWillRetain  Z
    MethodParameters:
              Name  Flags
      isWillFlag    
      willTopic     
      willMessage   
      willQos       
      isWillRetain  

  public void <init>(io.vertx.core.json.JsonObject);
    descriptor: (Lio/vertx/core/json/JsonObject;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // io.vertx.mqtt.MqttWill this
        start local 1 // io.vertx.core.json.JsonObject json
         0: .line 58
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 59
            aload 0 /* this */
            aload 1 /* json */
            ldc "isWillFlag"
            invokevirtual io.vertx.core.json.JsonObject.getBoolean:(Ljava/lang/String;)Ljava/lang/Boolean;
            invokevirtual java.lang.Boolean.booleanValue:()Z
            putfield io.vertx.mqtt.MqttWill.isWillFlag:Z
         2: .line 60
            aload 0 /* this */
            aload 1 /* json */
            ldc "willTopic"
            invokevirtual io.vertx.core.json.JsonObject.getString:(Ljava/lang/String;)Ljava/lang/String;
            putfield io.vertx.mqtt.MqttWill.willTopic:Ljava/lang/String;
         3: .line 61
            aload 0 /* this */
            aload 1 /* json */
            ldc "willMessage"
            invokevirtual io.vertx.core.json.JsonObject.getString:(Ljava/lang/String;)Ljava/lang/String;
            ldc "UTF-8"
            invokestatic java.nio.charset.Charset.forName:(Ljava/lang/String;)Ljava/nio/charset/Charset;
            invokevirtual java.lang.String.getBytes:(Ljava/nio/charset/Charset;)[B
            putfield io.vertx.mqtt.MqttWill.willMessage:[B
         4: .line 62
            aload 0 /* this */
            aload 1 /* json */
            ldc "willMessage"
            invokevirtual io.vertx.core.json.JsonObject.getInteger:(Ljava/lang/String;)Ljava/lang/Integer;
            invokevirtual java.lang.Integer.intValue:()I
            putfield io.vertx.mqtt.MqttWill.willQos:I
         5: .line 63
            aload 0 /* this */
            aload 1 /* json */
            ldc "isWillRetain"
            invokevirtual io.vertx.core.json.JsonObject.getBoolean:(Ljava/lang/String;)Ljava/lang/Boolean;
            invokevirtual java.lang.Boolean.booleanValue:()Z
            putfield io.vertx.mqtt.MqttWill.isWillRetain:Z
         6: .line 64
            return
        end local 1 // io.vertx.core.json.JsonObject json
        end local 0 // io.vertx.mqtt.MqttWill this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    7     0  this  Lio/vertx/mqtt/MqttWill;
            0    7     1  json  Lio/vertx/core/json/JsonObject;
    MethodParameters:
      Name  Flags
      json  

  public boolean isWillFlag();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // io.vertx.mqtt.MqttWill this
         0: .line 70
            aload 0 /* this */
            getfield io.vertx.mqtt.MqttWill.isWillFlag:Z
            ireturn
        end local 0 // io.vertx.mqtt.MqttWill this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/vertx/mqtt/MqttWill;

  public java.lang.String getWillTopic();
    descriptor: ()Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // io.vertx.mqtt.MqttWill this
         0: .line 77
            aload 0 /* this */
            getfield io.vertx.mqtt.MqttWill.willTopic:Ljava/lang/String;
            areturn
        end local 0 // io.vertx.mqtt.MqttWill this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/vertx/mqtt/MqttWill;

  public java.lang.String getWillMessage();
    descriptor: ()Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=1, args_size=1
        start local 0 // io.vertx.mqtt.MqttWill this
         0: .line 86
            new java.lang.String
            dup
            aload 0 /* this */
            getfield io.vertx.mqtt.MqttWill.willMessage:[B
            ldc "UTF-8"
            invokestatic java.nio.charset.Charset.forName:(Ljava/lang/String;)Ljava/nio/charset/Charset;
            invokespecial java.lang.String.<init>:([BLjava/nio/charset/Charset;)V
            areturn
        end local 0 // io.vertx.mqtt.MqttWill this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/vertx/mqtt/MqttWill;
    RuntimeVisibleAnnotations: 
      java.lang.Deprecated()

  public byte[] getWillMessageBytes();
    descriptor: ()[B
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // io.vertx.mqtt.MqttWill this
         0: .line 93
            aload 0 /* this */
            getfield io.vertx.mqtt.MqttWill.willMessage:[B
            areturn
        end local 0 // io.vertx.mqtt.MqttWill this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/vertx/mqtt/MqttWill;

  public int getWillQos();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // io.vertx.mqtt.MqttWill this
         0: .line 100
            aload 0 /* this */
            getfield io.vertx.mqtt.MqttWill.willQos:I
            ireturn
        end local 0 // io.vertx.mqtt.MqttWill this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/vertx/mqtt/MqttWill;

  public boolean isWillRetain();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // io.vertx.mqtt.MqttWill this
         0: .line 107
            aload 0 /* this */
            getfield io.vertx.mqtt.MqttWill.isWillRetain:Z
            ireturn
        end local 0 // io.vertx.mqtt.MqttWill this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/vertx/mqtt/MqttWill;

  public java.lang.String willTopic();
    descriptor: ()Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // io.vertx.mqtt.MqttWill this
         0: .line 116
            aload 0 /* this */
            getfield io.vertx.mqtt.MqttWill.willTopic:Ljava/lang/String;
            areturn
        end local 0 // io.vertx.mqtt.MqttWill this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/vertx/mqtt/MqttWill;
    RuntimeVisibleAnnotations: 
      java.lang.Deprecated()

  public java.lang.String willMessage();
    descriptor: ()Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // io.vertx.mqtt.MqttWill this
         0: .line 125
            aload 0 /* this */
            invokevirtual io.vertx.mqtt.MqttWill.getWillMessage:()Ljava/lang/String;
            areturn
        end local 0 // io.vertx.mqtt.MqttWill this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/vertx/mqtt/MqttWill;
    RuntimeVisibleAnnotations: 
      java.lang.Deprecated()

  public int willQos();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // io.vertx.mqtt.MqttWill this
         0: .line 134
            aload 0 /* this */
            getfield io.vertx.mqtt.MqttWill.willQos:I
            ireturn
        end local 0 // io.vertx.mqtt.MqttWill this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/vertx/mqtt/MqttWill;
    RuntimeVisibleAnnotations: 
      java.lang.Deprecated()

  public io.vertx.core.json.JsonObject toJson();
    descriptor: ()Lio/vertx/core/json/JsonObject;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=2, args_size=1
        start local 0 // io.vertx.mqtt.MqttWill this
         0: .line 143
            new io.vertx.core.json.JsonObject
            dup
            invokespecial io.vertx.core.json.JsonObject.<init>:()V
            astore 1 /* json */
        start local 1 // io.vertx.core.json.JsonObject json
         1: .line 144
            aload 1 /* json */
            ldc "isWillFlag"
            aload 0 /* this */
            getfield io.vertx.mqtt.MqttWill.isWillFlag:Z
            invokestatic java.lang.Boolean.valueOf:(Z)Ljava/lang/Boolean;
            invokevirtual io.vertx.core.json.JsonObject.put:(Ljava/lang/String;Ljava/lang/Boolean;)Lio/vertx/core/json/JsonObject;
            pop
         2: .line 145
            aload 1 /* json */
            ldc "willTopic"
            aload 0 /* this */
            getfield io.vertx.mqtt.MqttWill.willTopic:Ljava/lang/String;
            invokevirtual io.vertx.core.json.JsonObject.put:(Ljava/lang/String;Ljava/lang/String;)Lio/vertx/core/json/JsonObject;
            pop
         3: .line 146
            aload 1 /* json */
            ldc "willMessage"
            aload 0 /* this */
            getfield io.vertx.mqtt.MqttWill.willMessage:[B
            invokevirtual io.vertx.core.json.JsonObject.put:(Ljava/lang/String;[B)Lio/vertx/core/json/JsonObject;
            pop
         4: .line 147
            aload 1 /* json */
            ldc "willQos"
            aload 0 /* this */
            getfield io.vertx.mqtt.MqttWill.willQos:I
            invokestatic java.lang.Integer.valueOf:(I)Ljava/lang/Integer;
            invokevirtual io.vertx.core.json.JsonObject.put:(Ljava/lang/String;Ljava/lang/Integer;)Lio/vertx/core/json/JsonObject;
            pop
         5: .line 148
            aload 1 /* json */
            ldc "isWillRetain"
            aload 0 /* this */
            getfield io.vertx.mqtt.MqttWill.isWillRetain:Z
            invokestatic java.lang.Boolean.valueOf:(Z)Ljava/lang/Boolean;
            invokevirtual io.vertx.core.json.JsonObject.put:(Ljava/lang/String;Ljava/lang/Boolean;)Lio/vertx/core/json/JsonObject;
            pop
         6: .line 149
            aload 1 /* json */
            areturn
        end local 1 // io.vertx.core.json.JsonObject json
        end local 0 // io.vertx.mqtt.MqttWill this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    7     0  this  Lio/vertx/mqtt/MqttWill;
            1    7     1  json  Lio/vertx/core/json/JsonObject;
}
SourceFile: "MqttWill.java"
    RuntimeVisibleAnnotations: 
      io.vertx.codegen.annotations.DataObject()