add non-recycling pool

serialization-jackson/src/main/resources/reference.conf

@@ -39,7 +39,7 @@ pekko.serialization.jackson {
   # https://javadoc.io/static/com.fasterxml.jackson.core/jackson-core/2.18.1/com/fasterxml/jackson/core/util/JsonRecyclerPools.html
   # The default is "thread-local" which is the same as the default in Jackson 2.18.
   buffer-recycler {
-    # the supported values are "thread-local", "concurrent-deque", "shared-concurrent-deque", "bounded"
+    # the supported values are "thread-local", "concurrent-deque", "shared-concurrent-deque", "bounded", "non-recycling"
     pool-instance = "thread-local"
     # the maximum size of bounded recycler pools - must be >=1 or an IllegalArgumentException will occur
     # only applies to pool-instance type "bounded"

serialization-jackson/src/main/scala/org/apache/pekko/serialization/jackson/JacksonObjectMapperProvider.scala

@@ -163,6 +163,7 @@ object JacksonObjectMapperProvider extends ExtensionId[JacksonObjectMapperProvid
       case "concurrent-deque"        => JsonRecyclerPools.newConcurrentDequePool()
       case "shared-concurrent-deque" => JsonRecyclerPools.sharedConcurrentDequePool()
       case "bounded"                 => JsonRecyclerPools.newBoundedPool(cfg.getInt("buffer-recycler.bounded-pool-size"))
+      case "non-recycling"           => JsonRecyclerPools.nonRecyclingPool()
       case other                     => throw new IllegalArgumentException(s"Unknown recycler-pool: $other")
     }
   }