Github user michaelandrepearce commented on a diff in the pull request:

    https://github.com/apache/activemq-artemis/pull/1752#discussion_r159993138
  
    --- Diff: 
artemis-server/src/main/java/org/apache/activemq/artemis/core/protocol/ServerPacketDecoder.java
 ---
    @@ -83,16 +85,34 @@
     
     public class ServerPacketDecoder extends ClientPacketDecoder {
     
    +   private static final int UUID_LENGTH = 36;
    +   private static final int DEFAULT_INTERNER_CAPACITY = 32;
        private static final long serialVersionUID = 3348673114388400766L;
    -   public static final ServerPacketDecoder INSTANCE = new 
ServerPacketDecoder();
    +   private SimpleString.Interner keysInterner;
    +   private TypedProperties.StringValue.Interner valuesInterner;
     
    -   private static SessionSendMessage decodeSessionSendMessage(final 
ActiveMQBuffer in, CoreRemotingConnection connection) {
    +   public ServerPacketDecoder() {
    +      this.keysInterner = null;
    +      this.valuesInterner = null;
    +   }
    +
    +   private void initializeInternersIfNeeded() {
    --- End diff --
    
    If though you think about it address SimpleString really can be shared 
every where, if the aim is to achieve / avoid creation of SimpleString's on the 
heap where its the same address really, then this can be achieved now in java 8 
easily with a normal interner and creating objects within functions.


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