So I did further testing with Openfire and here is an error that actually occurs. I don’t know what it means exactly but my guess is the encoded text is too large to parse. I checked cropped file is 3MB. It is not a small size but I’m not sure why is it too large for XMPP.
Here is the log
2020.04.26 22:04:12 WARN [socket_c2s-thread-3]: org.jivesoftware.openfire.nio.ConnectionHandler - Closing connection due to exception in session: (0x00000007: nio socket, server, /192.168.1.103:42064 => /192.168.1.101:5222)
org.apache.mina.filter.codec.ProtocolDecoderException: Stopped parsing never ending stanza (Hexdump: (redacted hex dump of never ending stanza))
at org.jivesoftware.openfire.nio.XMLLightweightParser.read(XMLLightweightParser.java:192) ~[xmppserver-4.5.1.jar:4.5.1]
at org.jivesoftware.openfire.nio.XMPPDecoder.doDecode(XMPPDecoder.java:38) ~[xmppserver-4.5.1.jar:4.5.1]
at org.apache.mina.filter.codec.CumulativeProtocolDecoder.decode(CumulativeProtocolDecoder.java:180) ~[mina-core-2.1.3.jar:?]
at org.apache.mina.filter.codec.ProtocolCodecFilter.messageReceived(ProtocolCodecFilter.java:254) [mina-core-2.1.3.jar:?]
at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:650) [mina-core-2.1.3.jar:?]
at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1300(DefaultIoFilterChain.java:49) [mina-core-2.1.3.jar:?]
at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:1128) [mina-core-2.1.3.jar:?]
at org.apache.mina.core.filterchain.IoFilterEvent.fire(IoFilterEvent.java:106) [mina-core-2.1.3.jar:?]
at org.apache.mina.core.session.IoEvent.run(IoEvent.java:89) [mina-core-2.1.3.jar:?]
at org.apache.mina.filter.executor.OrderedThreadPoolExecutor$Worker.runTask(OrderedThreadPoolExecutor.java:766) [mina-core-2.1.3.jar:?]
at org.apache.mina.filter.executor.OrderedThreadPoolExecutor$Worker.runTasks(OrderedThreadPoolExecutor.java:758) [mina-core-2.1.3.jar:?]
at org.apache.mina.filter.executor.OrderedThreadPoolExecutor$Worker.run(OrderedThreadPoolExecutor.java:697) [mina-core-2.1.3.jar:?]
at java.lang.Thread.run(Thread.java:832) [?:?]