Use older version of Netty for 1.8 compatability

Release 0.1.7

Author: ConnorLinfoot

README.md

@@ -33,12 +33,12 @@ You can then include the dependency in your project.
 <dependency>
     <groupId>net.hypixel</groupId>
     <artifactId>mod-api</artifactId>
-    <version>0.1.6</version>
+    <version>0.1.7</version>
 </dependency>
 ```
 
 ```gradle
 dependencies {
-    implementation 'net.hypixel:mod-api:0.1.6'
+    implementation 'net.hypixel:mod-api:0.1.7'
 }
 ```

pom.xml

@@ -6,7 +6,7 @@
 
     <groupId>net.hypixel</groupId>
     <artifactId>mod-api</artifactId>
-    <version>0.1.6</version>
+    <version>0.1.7</version>
 
     <properties>
         <maven.compiler.source>8</maven.compiler.source>
@@ -31,7 +31,7 @@
         <dependency>
             <groupId>io.netty</groupId>
             <artifactId>netty-all</artifactId>
-            <version>4.0.56.Final</version>
+            <version>4.0.23.Final</version>
             <scope>provided</scope>
         </dependency>
         <dependency>

src/main/java/net/hypixel/modapi/serializer/PacketSerializer.java

@@ -8,7 +8,7 @@
 import java.util.UUID;
 
 public class PacketSerializer {
-    private static final int MAX_BYTES_PER_CHAR_UTF8 = (int) CharsetUtil.encoder(CharsetUtil.UTF_8).maxBytesPerChar();
+    private static final int MAX_BYTES_PER_CHAR_UTF8 = (int) CharsetUtil.getEncoder(CharsetUtil.UTF_8).maxBytesPerChar();
     private static final int MAX_STRING_LENGTH = 32767;
 
     private final ByteBuf buf;