ok2c commented on code in PR #606:
URL: 
https://github.com/apache/httpcomponents-core/pull/606#discussion_r2787950725


##########
httpcore5-h2/src/main/java/org/apache/hc/core5/http2/impl/nio/AbstractH2StreamMultiplexer.java:
##########


Review Comment:
   @arturobernalg It has to be massively simpler 
   
   In `AbstractH2StreamMultiplexer` at the line 522 do the following
   
   ```
   if (hasBeenIdleTooLong && ioSession.hasCommands() && pingHandlers.isEmpty()) 
{
   
       ioSession.setSocketTimeout(Timeout.ofSeconds(5));
       executePing(new PingCommand(new BasicPingHandler(new Callback<Boolean>() 
{
   
           @Override
           public void execute(final Boolean result) {
               // restore timeout
               ioSession.setSocketTimeout(...);
               if (result) {
                   // proceed with command execution
                   requestSessionOutput();
               } else {
                   ioSession.enqueue(new ShutdownCommand(CloseMode.GRACEFUL), 
Command.Priority.NORMAL);
               }
           }
   
       })));
       return;
   }
   ```
   
   Add idle time tracking, and that _should_ be all it takes.
   
   



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