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commit 181fadb4337496e79b1d230ef302568a6f82955c
Author: Benoit Tellier <[email protected]>
AuthorDate: Wed May 11 14:13:40 2022 +0700

    JAMES-3737 ImapRequestFrameDecoder: remove buggy code
    
    Unneeded, the cumulation cary over when disabling framing do not need it.
    
    Buggy: next handler do not expect a ByteBuf
    
    java.lang.ClassCastException: class io.netty.buffer.PooledDuplicatedByteBuf 
cannot be cast to class org.apache.james.imap.api.ImapMessage 
(io.netty.buffer.PooledDuplicatedByteBuf and 
org.apache.james.imap.api.ImapMessage are in unnamed module of loader 'app')
---
 .../org/apache/james/imapserver/netty/ImapRequestFrameDecoder.java   | 5 -----
 1 file changed, 5 deletions(-)

diff --git 
a/server/protocols/protocols-imap4/src/main/java/org/apache/james/imapserver/netty/ImapRequestFrameDecoder.java
 
b/server/protocols/protocols-imap4/src/main/java/org/apache/james/imapserver/netty/ImapRequestFrameDecoder.java
index 43ad58a086..88e3b9fb78 100644
--- 
a/server/protocols/protocols-imap4/src/main/java/org/apache/james/imapserver/netty/ImapRequestFrameDecoder.java
+++ 
b/server/protocols/protocols-imap4/src/main/java/org/apache/james/imapserver/netty/ImapRequestFrameDecoder.java
@@ -153,11 +153,6 @@ public class ImapRequestFrameDecoder extends 
ByteToMessageDecoder implements Net
 
         // SwitchableDelimiterBasedFrameDecoder added further to JAMES-1436.
         disableFraming(ctx);
-        if (in.readableBytes() > 0) {
-            ByteBuf spareBytes = in.retainedDuplicate();
-            internalBuffer().clear();
-            ctx.fireChannelRead(spareBytes);
-        }
         in.readerIndex(readerIndex);
     }
 


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