diff --git a/java/fory-core/src/main/java/org/apache/fory/builder/BaseObjectCodecBuilder.java b/java/fory-core/src/main/java/org/apache/fory/builder/BaseObjectCodecBuilder.java
index e7aee5ee69..a05527725b 100644
--- a/java/fory-core/src/main/java/org/apache/fory/builder/BaseObjectCodecBuilder.java
+++ b/java/fory-core/src/main/java/org/apache/fory/builder/BaseObjectCodecBuilder.java
@@ -1856,17 +1856,15 @@ protected Expression deserializeForNullableField(
     } else {
       if (typeRef.isPrimitive() && !nullable) {
         // Only skip null check if BOTH: local type is primitive AND sender didn't write null flag
-        Expression value = deserializeForNotNull(buffer, typeRef, null);
+        Expression value = deserializeForNotNullForField(buffer, descriptor, null);
         // Should put value expr ahead to avoid generated code in wrong scope.
         return new ListExpression(value, callback.apply(value));
       }
-      // Pass local field type so readNullable can use default value for primitives when null
-      Class<?> localFieldType = typeRef.isPrimitive() ? typeRef.getRawType() : null;
       return readNullableField(
           buffer,
           descriptor,
           callback,
-          () -> deserializeForNotNull(buffer, typeRef, null),
+          () -> deserializeForNotNullForField(buffer, descriptor, null),
           nullable);
     }
   }
diff --git a/java/fory-core/src/main/java/org/apache/fory/codegen/Expression.java b/java/fory-core/src/main/java/org/apache/fory/codegen/Expression.java
index 25ce0b294f..e1311a4c83 100644
--- a/java/fory-core/src/main/java/org/apache/fory/codegen/Expression.java
+++ b/java/fory-core/src/main/java/org/apache/fory/codegen/Expression.java
@@ -56,6 +56,7 @@
 import java.util.Collection;
 import java.util.Collections;
 import java.util.List;
+import java.util.Locale;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 import org.apache.fory.memory.Platform;
@@ -430,7 +431,8 @@ public ExprCode doGenCode(CodegenContext ctx) {
             return new ExprCode(
                 FalseLiteral, new LiteralValue(javaType, "Float.NEGATIVE_INFINITY"));
           } else {
-            return new ExprCode(FalseLiteral, new LiteralValue(javaType, String.format("%fF", f)));
+            return new ExprCode(
+                FalseLiteral, new LiteralValue(javaType, String.format(Locale.ROOT, "%fF", f)));
           }
         } else if (javaType == Double.class) {
           Double d = (Double) value;
@@ -443,7 +445,8 @@ public ExprCode doGenCode(CodegenContext ctx) {
             return new ExprCode(
                 FalseLiteral, new LiteralValue(javaType, "Double.NEGATIVE_INFINITY"));
           } else {
-            return new ExprCode(FalseLiteral, new LiteralValue(javaType, String.format("%fD", d)));
+            return new ExprCode(
+                FalseLiteral, new LiteralValue(javaType, String.format(Locale.ROOT, "%fD", d)));
           }
         } else if (javaType == Byte.class) {
           return new ExprCode(
diff --git a/java/fory-latest-jdk-tests/src/test/java/org/apache/fory/integration_tests/RecordSerializersTest.java b/java/fory-latest-jdk-tests/src/test/java/org/apache/fory/integration_tests/RecordSerializersTest.java
index ff54a6ad36..71a4f515e6 100644
--- a/java/fory-latest-jdk-tests/src/test/java/org/apache/fory/integration_tests/RecordSerializersTest.java
+++ b/java/fory-latest-jdk-tests/src/test/java/org/apache/fory/integration_tests/RecordSerializersTest.java
@@ -22,13 +22,17 @@
 import static org.apache.fory.collection.Collections.ofArrayList;
 import static org.apache.fory.collection.Collections.ofHashMap;
 
+import java.io.Serializable;
 import java.lang.reflect.ParameterizedType;
 import java.lang.reflect.Type;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
 import org.apache.fory.Fory;
+import org.apache.fory.ThreadSafeFory;
 import org.apache.fory.config.CompatibleMode;
+import org.apache.fory.config.ForyBuilder;
+import org.apache.fory.config.Language;
 import org.apache.fory.context.MetaReadContext;
 import org.apache.fory.context.MetaWriteContext;
 import org.apache.fory.test.bean.Struct;
@@ -42,6 +46,11 @@ public class RecordSerializersTest {
 
   public record Foo(int f1, String f2, List<String> f3, char f4) {}
 
+  public record NumberCompressedPayload(Long longValue, String stringValue) {}
+
+  public record BoxedPrimitiveRecord(String lensId, Long from, Long to, Integer type)
+      implements Serializable {}
+
   @Test
   public void testIsRecord() {
     Assert.assertTrue(RecordUtils.isRecord(Foo.class));
@@ -80,6 +89,56 @@ public void testSimpleRecord(boolean codegen) {
     Assert.assertEquals(fory.deserialize(fory.serialize(foo)), foo);
   }
 
+  @Test
+  public void testNumberCompressedBoxedLongRecordRoundTripAcrossPools() {
+    ThreadSafeFory writer = newNumberCompressedPool();
+    ThreadSafeFory reader = newNumberCompressedPool();
+
+    NumberCompressedPayload payload =
+        new NumberCompressedPayload(123_456_789L, "longer string with multibyte: \u00ff\u00fe");
+
+    byte[] bytes = writer.serialize(payload);
+    Assert.assertEquals(reader.deserialize(bytes), payload);
+  }
+
+  @Test
+  public void testCompatibleCodegenBoxedPrimitiveRecordRoundTrip() {
+    Fory fory =
+        Fory.builder()
+            .withLanguage(Language.JAVA)
+            .requireClassRegistration(false)
+            .withCompatibleMode(CompatibleMode.COMPATIBLE)
+            .withClassVersionCheck(true)
+            .withCodegen(true)
+            .build();
+    BoxedPrimitiveRecord record =
+        new BoxedPrimitiveRecord(
+            "aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee:11111111-2222-3333-4444-555555555555",
+            123456789012345L,
+            98765432109876L,
+            146);
+    Assert.assertEquals(fory.deserialize(fory.serialize(record)), record);
+  }
+
+  private static ThreadSafeFory newNumberCompressedPool() {
+    return newNumberCompressedBuilder().buildThreadSafeForyPool(4);
+  }
+
+  private static ForyBuilder newNumberCompressedBuilder() {
+    return Fory.builder()
+        .withLanguage(Language.JAVA)
+        .withCodegen(true)
+        .withAsyncCompilation(false)
+        .requireClassRegistration(false)
+        .suppressClassRegistrationWarnings(true)
+        .withDeserializeUnknownClass(true)
+        .withRefTracking(true)
+        .withCompatibleMode(CompatibleMode.COMPATIBLE)
+        .withStringCompressed(true)
+        .withNumberCompressed(true)
+        .withRefCopy(true);
+  }
+
   @Test(dataProvider = "codegen")
   public void testSimpleRecordMetaShared(boolean codegen) {
     Fory fory =