diff --git a/cpp/src/gandiva/function_registry_datetime.cc b/cpp/src/gandiva/function_registry_datetime.cc
index b222967e53d78..0aff35f27ed04 100644
--- a/cpp/src/gandiva/function_registry_datetime.cc
+++ b/cpp/src/gandiva/function_registry_datetime.cc
@@ -152,7 +152,8 @@ std::vector<NativeFunction> GetDateTimeFunctionRegistry() {
 
       DATE_TYPES(LAST_DAY_SAFE_NULL_IF_NULL, last_day, {}),
       BASE_NUMERIC_TYPES(TO_TIME_SAFE_NULL_IF_NULL, to_time, {}),
-      BASE_NUMERIC_TYPES(TO_TIMESTAMP_SAFE_NULL_IF_NULL, to_timestamp, {})};
+      BASE_NUMERIC_TYPES(TO_TIMESTAMP_SAFE_NULL_IF_NULL, to_timestamp, {}),
+
       NativeFunction("convertTimestampUnit", {}, DataTypeVector{timestamp()}, arrow::timestamp(arrow::TimeUnit::MICRO),
                      kResultNullIfNull, "convertTimestampUnit_ms"),
 
@@ -160,7 +161,7 @@ std::vector<NativeFunction> GetDateTimeFunctionRegistry() {
                      kResultNullIfNull, "convertTimestampUnit_us"),
 
       NativeFunction("castDATE", {}, DataTypeVector{date64()}, date32(),
-                     kResultNullIfNull, "castDATE_date64"),
+                     kResultNullIfNull, "castDATE32_date64"),
 
       NativeFunction("castTIMESTAMP", {}, DataTypeVector{date32()}, timestamp(),
                      kResultNullIfNull, "castTIMESTAMP_date32"),
@@ -204,7 +205,8 @@ std::vector<NativeFunction> GetDateTimeFunctionRegistry() {
       NativeFunction("date_diff", {}, DataTypeVector{date32(), date32()}, int32(),
                      kResultNullIfNull, "micros_to_timestamp_date32_date32"),
 
-      DATE_TYPES(LAST_DAY_SAFE_NULL_IF_NULL, last_day, {});
+      DATE_TYPES(LAST_DAY_SAFE_NULL_IF_NULL, last_day, {})
+  };
 
   return date_time_fn_registry_;
 }
diff --git a/cpp/src/jni/dataset/jni_wrapper.cc b/cpp/src/jni/dataset/jni_wrapper.cc
index 8ec8e859df8b7..407bfcb3b1803 100644
--- a/cpp/src/jni/dataset/jni_wrapper.cc
+++ b/cpp/src/jni/dataset/jni_wrapper.cc
@@ -84,7 +84,11 @@ class ReserveFromJava : public arrow::jniutil::ReservationListener {
   arrow::Status OnReservation(int64_t size) override {
     JNIEnv* env;
     if (vm_->GetEnv(reinterpret_cast<void**>(&env), JNI_VERSION) != JNI_OK) {
-      return arrow::Status::Invalid("JNIEnv was not attached to current thread");
+      if (vm_->AttachCurrentThreadAsDaemon(
+          reinterpret_cast<void**>(&env), nullptr) != JNI_OK) {
+        return arrow::Status::Invalid(
+            "JNIEnv was not able to be attached to current thread");
+      }
     }
     env->CallObjectMethod(java_reservation_listener_, reserve_memory_method, size);
     RETURN_NOT_OK(arrow::jniutil::CheckException(env));
@@ -94,7 +98,11 @@ class ReserveFromJava : public arrow::jniutil::ReservationListener {
   arrow::Status OnRelease(int64_t size) override {
     JNIEnv* env;
     if (vm_->GetEnv(reinterpret_cast<void**>(&env), JNI_VERSION) != JNI_OK) {
-      return arrow::Status::Invalid("JNIEnv was not attached to current thread");
+      if (vm_->AttachCurrentThreadAsDaemon(
+          reinterpret_cast<void**>(&env), nullptr) != JNI_OK) {
+        return arrow::Status::Invalid(
+            "JNIEnv was not able to be attached to current thread");
+      }
     }
     env->CallObjectMethod(java_reservation_listener_, unreserve_memory_method, size);
     RETURN_NOT_OK(arrow::jniutil::CheckException(env));
diff --git a/java/dataset/src/main/java/org/apache/arrow/dataset/jni/NativeSerializedRecordBatchIterator.java b/java/dataset/src/main/java/org/apache/arrow/dataset/jni/NativeSerializedRecordBatchIterator.java
new file mode 100644
index 0000000000000..2e5a2706a2cb5
--- /dev/null
+++ b/java/dataset/src/main/java/org/apache/arrow/dataset/jni/NativeSerializedRecordBatchIterator.java
@@ -0,0 +1,36 @@
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.arrow.dataset.jni;
+
+import java.util.Iterator;
+
+/**
+ * Iterate on flatbuffers-serialized {@link org.apache.arrow.vector.ipc.message.ArrowRecordBatch}.
+ * <p>
+ * {@link #next()} should be called from C++ scanner to read Java-generated Arrow data.
+ */
+public interface NativeSerializedRecordBatchIterator extends Iterator<byte[]>, AutoCloseable {
+
+  /**
+   * Return next serialized {@link org.apache.arrow.vector.ipc.message.ArrowRecordBatch} Java
+   * byte array.
+   */
+  @Override
+  byte[] next();
+}
\ No newline at end of file