sijie commented on a change in pull request #5123: Modify the schema decode 
method can decode ByteBuf
URL: https://github.com/apache/pulsar/pull/5123#discussion_r322404253
 
 

 ##########
 File path: 
pulsar-client/src/main/java/org/apache/pulsar/client/impl/schema/ByteBufferSchema.java
 ##########
 @@ -68,6 +77,22 @@ public ByteBuffer decode(byte[] data) {
         }
     }
 
+    @Override
+    public ByteBuffer decode(ByteBuf byteBuf) {
+        if (null == byteBuf) {
+            return null;
+        } else {
+            int size = byteBuf.readableBytes();
 
 Review comment:
   since we are returning a `ByteBuffer` back to the user, we shouldn't use a 
shared byte[]. You have to copy the bytes from ByteBuf and create ByteBuffer 
from the copied bytes.

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