Use a custom redis pubsub implementation rather than Jedis.

// FREEBIE

src/main/java/org/whispersystems/dispatch/util/Util.java

@@ -0,0 +1,36 @@
+package org.whispersystems.dispatch.util;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+
+public class Util {
+
+  public static byte[] combine(byte[]... elements) {
+    try {
+      int sum = 0;
+
+      for (byte[] element : elements) {
+        sum += element.length;
+      }
+
+      ByteArrayOutputStream baos = new ByteArrayOutputStream(sum);
+
+      for (byte[] element : elements) {
+        baos.write(element);
+      }
+
+      return baos.toByteArray();
+    } catch (IOException e) {
+      throw new AssertionError(e);
+    }
+  }
+
+
+  public static void sleep(long millis) {
+    try {
+      Thread.sleep(millis);
+    } catch (InterruptedException e) {
+      throw new AssertionError(e);
+    }
+  }
+}