diff --git a/vertx-core/src/main/java/io/vertx/core/buffer/impl/BufferImpl.java b/vertx-core/src/main/java/io/vertx/core/buffer/impl/BufferImpl.java
index 6489db99b2f..ba06b62f8f8 100644
--- a/vertx-core/src/main/java/io/vertx/core/buffer/impl/BufferImpl.java
+++ b/vertx-core/src/main/java/io/vertx/core/buffer/impl/BufferImpl.java
@@ -18,7 +18,7 @@
 import io.vertx.core.buffer.Buffer;
 import io.vertx.core.internal.buffer.BufferInternal;
 import io.vertx.core.impl.Arguments;
-import io.vertx.core.internal.buffer.VertxByteBufAllocator;
+import io.vertx.core.impl.buffer.VertxByteBufAllocator;
 import io.vertx.core.json.JsonArray;
 import io.vertx.core.json.JsonObject;
 
diff --git a/vertx-core/src/main/java/io/vertx/core/buffer/impl/PartialPooledByteBufAllocator.java b/vertx-core/src/main/java/io/vertx/core/buffer/impl/PartialPooledByteBufAllocator.java
index efb04cad899..7aea3c13445 100644
--- a/vertx-core/src/main/java/io/vertx/core/buffer/impl/PartialPooledByteBufAllocator.java
+++ b/vertx-core/src/main/java/io/vertx/core/buffer/impl/PartialPooledByteBufAllocator.java
@@ -13,7 +13,7 @@
 
 
 import io.netty.buffer.*;
-import io.vertx.core.internal.buffer.VertxByteBufAllocator;
+import io.vertx.core.impl.buffer.VertxByteBufAllocator;
 
 /**
  * A {@link io.netty.buffer.ByteBufAllocator} which is partial pooled. Which means only direct {@link io.netty.buffer.ByteBuf}s are pooled. The rest
diff --git a/vertx-core/src/main/java/io/vertx/core/http/impl/Http2ConnectionBase.java b/vertx-core/src/main/java/io/vertx/core/http/impl/Http2ConnectionBase.java
index 3c0897bcb8e..73a2428086d 100644
--- a/vertx-core/src/main/java/io/vertx/core/http/impl/Http2ConnectionBase.java
+++ b/vertx-core/src/main/java/io/vertx/core/http/impl/Http2ConnectionBase.java
@@ -30,7 +30,7 @@
 import io.vertx.core.VertxException;
 import io.vertx.core.buffer.Buffer;
 import io.vertx.core.internal.buffer.BufferInternal;
-import io.vertx.core.internal.buffer.VertxByteBufAllocator;
+import io.vertx.core.impl.buffer.VertxByteBufAllocator;
 import io.vertx.core.http.GoAway;
 import io.vertx.core.http.HttpClosedException;
 import io.vertx.core.http.HttpConnection;
diff --git a/vertx-core/src/main/java/io/vertx/core/internal/buffer/VertxByteBufAllocator.java b/vertx-core/src/main/java/io/vertx/core/impl/buffer/VertxByteBufAllocator.java
similarity index 97%
rename from vertx-core/src/main/java/io/vertx/core/internal/buffer/VertxByteBufAllocator.java
rename to vertx-core/src/main/java/io/vertx/core/impl/buffer/VertxByteBufAllocator.java
index dcd81b55466..6f5cf505f7e 100644
--- a/vertx-core/src/main/java/io/vertx/core/internal/buffer/VertxByteBufAllocator.java
+++ b/vertx-core/src/main/java/io/vertx/core/impl/buffer/VertxByteBufAllocator.java
@@ -8,7 +8,7 @@
  *
  * SPDX-License-Identifier: EPL-2.0 OR Apache-2.0
  */
-package io.vertx.core.internal.buffer;
+package io.vertx.core.impl.buffer;
 
 import io.netty.buffer.AbstractByteBufAllocator;
 import io.netty.buffer.ByteBuf;
@@ -25,8 +25,8 @@ public abstract class VertxByteBufAllocator extends AbstractByteBufAllocator {
    * Vert.x pooled allocator.
    */
   public static final ByteBufAllocator POOLED_ALLOCATOR = new PooledByteBufAllocator(true);
+
   /**
-   *
    * Vert.x shared un-pooled allocator.
    */
   public static final ByteBufAllocator UNPOOLED_ALLOCATOR = new UnpooledByteBufAllocator(false);
diff --git a/vertx-core/src/main/java/io/vertx/core/net/impl/VertxHandler.java b/vertx-core/src/main/java/io/vertx/core/net/impl/VertxHandler.java
index 728f03231ff..758f8dbb187 100644
--- a/vertx-core/src/main/java/io/vertx/core/net/impl/VertxHandler.java
+++ b/vertx-core/src/main/java/io/vertx/core/net/impl/VertxHandler.java
@@ -20,7 +20,7 @@
 import io.netty.channel.ChannelPromise;
 import io.netty.handler.timeout.IdleStateEvent;
 import io.vertx.core.Handler;
-import io.vertx.core.internal.buffer.VertxByteBufAllocator;
+import io.vertx.core.impl.buffer.VertxByteBufAllocator;
 
 import java.util.function.Function;
 
diff --git a/vertx-core/src/main/java/module-info.java b/vertx-core/src/main/java/module-info.java
index e0ce7ede921..9e0ead2d9cf 100644
--- a/vertx-core/src/main/java/module-info.java
+++ b/vertx-core/src/main/java/module-info.java
@@ -116,5 +116,6 @@
   exports io.vertx.core.spi.cluster.impl.selector to io.vertx.core.tests;
   exports io.vertx.core.impl.verticle to io.vertx.core.tests;
   exports io.vertx.core.impl.deployment to io.vertx.core.tests;
+  exports io.vertx.core.impl.buffer to io.vertx.core.tests;
 
 }