StefanoBelli commented on issue #4503:
URL: https://github.com/apache/bookkeeper/issues/4503#issuecomment-2357974132

   A workaround is setting the correct initial capacity for the destination 
ByteBuf (e.g. in testing class, the method overload allocBuf() should be 
modified to accept an integer and pass it as initial capacity for 
ByteBufAllocator.DEFAULT.buffer()).
   
   Having proper checks (even at the beginning of the BufferedChannel.read 
method) will of course fix this issue definitively, or you may specify this 
requirement in javadoc (to explicitly set the dest ByteBuf's *initial* 
capacity), or even let BufferedChannel's read to expand the destination ByteBuf 
object's capacity according to the "length" (e.g. if length > destBufLength 
then exceed capacity by length - destBufLength) actual value passed to 
BufferedChannel.read's parameter.


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