diff --git a/pulsar-client/src/main/java/org/apache/pulsar/client/impl/schema/AutoConsumeSchema.java b/pulsar-client/src/main/java/org/apache/pulsar/client/impl/schema/AutoConsumeSchema.java
index 6d0ce1224e5fd..2ac31fc7b1b50 100644
--- a/pulsar-client/src/main/java/org/apache/pulsar/client/impl/schema/AutoConsumeSchema.java
+++ b/pulsar-client/src/main/java/org/apache/pulsar/client/impl/schema/AutoConsumeSchema.java
@@ -81,6 +81,12 @@ public void validate(byte[] message) {
         schemaMap.get(SchemaVersion.Latest).validate(message);
     }
 
+    public void validate(byte[] message, byte[] schemaVersion) {
+        SchemaVersion sv = getSchemaVersion(schemaVersion);
+        ensureSchemaInitialized(sv);
+        schemaMap.get(sv).validate(message);
+    }
+
     @Override
     public byte[] encode(GenericRecord message) {
         throw new UnsupportedOperationException("AutoConsumeSchema is not intended to be used for encoding");
@@ -92,7 +98,7 @@ public boolean supportSchemaVersioning() {
     }
 
     public Schema<?> atSchemaVersion(byte[] schemaVersion) {
-        SchemaVersion sv = BytesSchemaVersion.of(schemaVersion);
+        SchemaVersion sv = getSchemaVersion(schemaVersion);
         fetchSchemaIfNeeded(sv);
         ensureSchemaInitialized(sv);
         Schema<?> topicVersionedSchema = schemaMap.get(sv);
@@ -105,7 +111,7 @@ public Schema<?> atSchemaVersion(byte[] schemaVersion) {
 
     @Override
     public GenericRecord decode(byte[] bytes, byte[] schemaVersion) {
-        SchemaVersion sv = BytesSchemaVersion.of(schemaVersion);
+        SchemaVersion sv = getSchemaVersion(schemaVersion);
         fetchSchemaIfNeeded(sv);
         ensureSchemaInitialized(sv);
         return adapt(schemaMap.get(sv).decode(bytes, schemaVersion), schemaVersion);
@@ -114,8 +120,8 @@ public GenericRecord decode(byte[] bytes, byte[] schemaVersion) {
     @Override
     public void setSchemaInfoProvider(SchemaInfoProvider schemaInfoProvider) {
         this.schemaInfoProvider = schemaInfoProvider;
-        if (schemaMap.containsKey(SchemaVersion.Latest)) {
-            schemaMap.get(SchemaVersion.Latest).setSchemaInfoProvider(schemaInfoProvider);
+        for (Schema<?> schema : schemaMap.values()) {
+            schema.setSchemaInfoProvider(schemaInfoProvider);
         }
     }
 
@@ -128,10 +134,7 @@ public SchemaInfo getSchemaInfo() {
     }
 
     public SchemaInfo getSchemaInfo(byte[] schemaVersion) {
-        if (schemaVersion == null) {
-            return Schema.BYTES.getSchemaInfo();
-        }
-        SchemaVersion sv = BytesSchemaVersion.of(schemaVersion);
+        SchemaVersion sv = getSchemaVersion(schemaVersion);
         if (schemaMap.containsKey(sv)) {
             return schemaMap.get(sv).getSchemaInfo();
         }
@@ -251,7 +254,7 @@ protected GenericRecord adapt(Object value, byte[] schemaVersion) {
         if (value instanceof GenericRecord) {
             return (GenericRecord) value;
         }
-        BytesSchemaVersion sv = BytesSchemaVersion.of(schemaVersion);
+        SchemaVersion sv = getSchemaVersion(schemaVersion);
         if (!schemaMap.containsKey(sv)) {
             throw new IllegalStateException("Cannot decode a message without schema");
         }
@@ -267,7 +270,7 @@ public Schema<?> getInternalSchema() {
     }
 
     public Schema<?> getInternalSchema(byte[] schemaVersion) {
-        return schemaMap.get(BytesSchemaVersion.of(schemaVersion));
+        return schemaMap.get(getSchemaVersion(schemaVersion));
     }
 
     /**
@@ -308,13 +311,26 @@ public void fetchSchemaIfNeeded(SchemaVersion schemaVersion) throws SchemaSerial
         }
     }
 
+    private static SchemaVersion getSchemaVersion(byte[] schemaVersion) {
+        if (schemaVersion != null) {
+            return BytesSchemaVersion.of(schemaVersion);
+        }
+        return BytesSchemaVersion.of(new byte[0]);
+    }
+
     @Override
     public String toString() {
-        if (schemaMap.containsKey(SchemaVersion.Latest)
-                && schemaMap.get(SchemaVersion.Latest).getSchemaInfo() != null) {
-            return "AUTO_CONSUME(schematype=" + schemaMap.get(SchemaVersion.Latest).getSchemaInfo().getType() + ")";
-        } else {
+        if (schemaMap.isEmpty()) {
             return "AUTO_CONSUME(uninitialized)";
         }
+        StringBuilder sb = new StringBuilder("AUTO_CONSUME(");
+        for (Map.Entry<SchemaVersion, Schema<?>> entry : schemaMap.entrySet()) {
+            sb.append("{schemaVersion=").append(entry.getKey())
+                    .append(",schemaType=").append(entry.getValue().getSchemaInfo().getType())
+                    .append("}");
+        }
+        sb.append(")");
+        return sb.toString();
     }
+
 }
diff --git a/pulsar-client/src/test/java/org/apache/pulsar/client/impl/TypedMessageBuilderImplTest.java b/pulsar-client/src/test/java/org/apache/pulsar/client/impl/TypedMessageBuilderImplTest.java
index 789565f2b81d6..5fa0da2ca33e8 100644
--- a/pulsar-client/src/test/java/org/apache/pulsar/client/impl/TypedMessageBuilderImplTest.java
+++ b/pulsar-client/src/test/java/org/apache/pulsar/client/impl/TypedMessageBuilderImplTest.java
@@ -20,6 +20,7 @@
 
 import org.apache.pulsar.client.api.Schema;
 import org.apache.pulsar.client.api.schema.SchemaDefinition;
+import org.apache.pulsar.client.impl.schema.AutoConsumeSchema;
 import org.apache.pulsar.client.impl.schema.AvroSchema;
 import org.apache.pulsar.client.impl.schema.SchemaTestUtils;
 import org.apache.pulsar.common.schema.KeyValue;
@@ -225,5 +226,4 @@ public void testSetKeyBytesEncodingTypeSeparated() {
         }
     }
 
-
 }
diff --git a/pulsar-client/src/test/java/org/apache/pulsar/client/impl/schema/AutoConsumeSchemaTest.java b/pulsar-client/src/test/java/org/apache/pulsar/client/impl/schema/AutoConsumeSchemaTest.java
new file mode 100644
index 0000000000000..4ed2ffdbb7aeb
--- /dev/null
+++ b/pulsar-client/src/test/java/org/apache/pulsar/client/impl/schema/AutoConsumeSchemaTest.java
@@ -0,0 +1,47 @@
+/**
+ * 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.pulsar.client.impl.schema;
+
+import java.nio.ByteBuffer;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.pulsar.client.api.Schema;
+import org.apache.pulsar.client.api.schema.GenericRecord;
+import org.apache.pulsar.client.impl.MessageImpl;
+import org.apache.pulsar.common.api.proto.MessageMetadata;
+import org.junit.Assert;
+import org.testng.annotations.Test;
+
+/**
+ * AutoConsumeSchema test.
+ */
+@Slf4j
+public class AutoConsumeSchemaTest {
+
+    @Test
+    public void decodeDataWithNullSchemaVersion() {
+        Schema<GenericRecord> autoConsumeSchema = new AutoConsumeSchema();
+        byte[] bytes = "bytes data".getBytes();
+        MessageImpl<GenericRecord> message = MessageImpl.create(
+                new MessageMetadata(), ByteBuffer.wrap(bytes), autoConsumeSchema);
+        Assert.assertNull(message.getSchemaVersion());
+        GenericRecord genericRecord = message.getValue();
+        Assert.assertEquals(genericRecord.getNativeObject(), bytes);
+    }
+
+}