Add additional information when packets aren't sent correctly.

src/main/java/us/myles/ViaVersion/api/PacketWrapper.java

@@ -52,7 +52,7 @@ public class PacketWrapper {
         }
 
         Exception e = new ArrayIndexOutOfBoundsException("Could not find type " + type.getTypeName() + " at " + index);
-        throw new InformativeException(e).set("Type", type.getTypeName()).set("Index", index).set("Packet ID", getId());
+        throw new InformativeException(e).set("Type", type.getTypeName()).set("Index", index).set("Packet ID", getId()).set("Data", packetValues);
     }
 
     /**
@@ -92,7 +92,7 @@ public class PacketWrapper {
             try {
                 return type.read(inputBuffer);
             } catch (Exception e) {
-                throw new InformativeException(e).set("Type", type.getTypeName()).set("Packet ID", getId());
+                throw new InformativeException(e).set("Type", type.getTypeName()).set("Packet ID", getId()).set("Data", packetValues);
             }
         } else {
             Pair<Type, Object> read = readableObjects.poll();
@@ -103,7 +103,7 @@ public class PacketWrapper {
                     return read(type); // retry
                 } else {
                     Exception e = new IOException("Unable to read type " + type.getTypeName() + ", found " + read.getKey().getTypeName());
-                    throw new InformativeException(e).set("Type", type.getTypeName()).set("Packet ID", getId());
+                    throw new InformativeException(e).set("Type", type.getTypeName()).set("Packet ID", getId()).set("Data", packetValues);
                 }
             }
         }
@@ -172,7 +172,7 @@ public class PacketWrapper {
                 }
                 packetValue.getKey().write(buffer, value);
             } catch (Exception e) {
-                throw new InformativeException(e).set("Index", index).set("Type", packetValue.getKey().getTypeName()).set("Packet ID", getId());
+                throw new InformativeException(e).set("Index", index).set("Type", packetValue.getKey().getTypeName()).set("Packet ID", getId()).set("Data", packetValues);
             }
             index++;
         }

src/main/java/us/myles/ViaVersion/api/Pair.java

@@ -3,12 +3,10 @@ package us.myles.ViaVersion.api;
 import lombok.EqualsAndHashCode;
 import lombok.Getter;
 import lombok.Setter;
-import lombok.ToString;
 
 @Getter
 @Setter
 @EqualsAndHashCode
-@ToString
 public class Pair<X, Y> {
     private X key;
     private Y value;
@@ -17,4 +15,9 @@ public class Pair<X, Y> {
         this.key = key;
         this.value = value;
     }
+
+    @Override
+    public String toString() {
+        return "Pair{" + key + ", " + value + '}';
+    }
 }

src/main/java/us/myles/ViaVersion/api/minecraft/Position.java

@@ -2,9 +2,11 @@ package us.myles.ViaVersion.api.minecraft;
 
 import lombok.AllArgsConstructor;
 import lombok.Getter;
+import lombok.ToString;
 
 @AllArgsConstructor
 @Getter
+@ToString
 public class Position {
     private Long x;
     private Long y;

src/main/java/us/myles/ViaVersion/api/minecraft/chunks/Chunk.java

@@ -2,9 +2,11 @@ package us.myles.ViaVersion.api.minecraft.chunks;
 
 import lombok.Getter;
 import lombok.RequiredArgsConstructor;
+import lombok.ToString;
 
 @RequiredArgsConstructor
 @Getter
+@ToString
 public class Chunk {
     private final int x;
     private final int z;

src/main/java/us/myles/ViaVersion/api/minecraft/item/Item.java

@@ -1,9 +1,6 @@
 package us.myles.ViaVersion.api.minecraft.item;
 
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-import lombok.NoArgsConstructor;
-import lombok.Setter;
+import lombok.*;
 import org.bukkit.inventory.ItemStack;
 import org.spacehq.opennbt.tag.builtin.CompoundTag;
 
@@ -11,6 +8,7 @@ import org.spacehq.opennbt.tag.builtin.CompoundTag;
 @Setter
 @NoArgsConstructor
 @AllArgsConstructor
+@ToString
 public class Item {
     private short id;
     private byte amount;

src/main/java/us/myles/ViaVersion/api/minecraft/metadata/Metadata.java

@@ -13,4 +13,14 @@ public class Metadata {
     private int typeID;
     private Type type;
     private Object value;
+
+    @Override
+    public String toString() {
+        return "Metadata{" +
+                "id=" + id +
+                ", typeID=" + typeID +
+                ", type=" + type +
+                ", value=" + value +
+                '}';
+    }
 }

src/main/java/us/myles/ViaVersion/api/type/Type.java

@@ -77,4 +77,9 @@ public abstract class Type<T> implements ByteBufReader<T>, ByteBufWriter<T> {
         this.outputClass = outputClass;
         this.typeName = typeName;
     }
+
+    @Override
+    public String toString() {
+        return "Type|" + getTypeName();
+    }
 }