Additional configuration to closer match Jackson 2 behavior

Author: nrayburn-tech

src/main/java/tools/jackson/core/TSFBuilder.java

@@ -202,7 +202,8 @@ public B configure(StreamWriteFeature f, boolean state) {
      */
     public B configureForJackson2() {
         return disable(StreamReadFeature.USE_FAST_DOUBLE_PARSER)
-                .disable(StreamReadFeature.USE_FAST_BIG_NUMBER_PARSER);
+                .disable(StreamReadFeature.USE_FAST_BIG_NUMBER_PARSER)
+                .enable(TokenStreamFactory.Feature.INTERN_PROPERTY_NAMES);
     }
 
     // // // Other configuration, constraints

src/main/java/tools/jackson/core/json/JsonFactoryBuilder.java

@@ -4,6 +4,7 @@
 import tools.jackson.core.base.DecorableTSFactory.DecorableTSFBuilder;
 import tools.jackson.core.io.CharacterEscapes;
 import tools.jackson.core.io.SerializedString;
+import tools.jackson.core.util.JsonRecyclerPools;
 
 /**
  * {@link tools.jackson.core.TSFBuilder}
@@ -120,7 +121,8 @@ public JsonFactoryBuilder configure(JsonWriteFeature f, boolean state) {
     public JsonFactoryBuilder configureForJackson2() {
         return super.configureForJackson2()
                 .disable(JsonWriteFeature.ESCAPE_FORWARD_SLASHES)
-                .disable(JsonWriteFeature.COMBINE_UNICODE_SURROGATES_IN_UTF8);
+                .disable(JsonWriteFeature.COMBINE_UNICODE_SURROGATES_IN_UTF8)
+                .recyclerPool(JsonRecyclerPools.threadLocalPool());
     }
 
     // // // Other JSON-specific configuration