After ZBX-8839 in startup.sh script these lines were added:

if [ -n "$TIMEOUT" ]; then
	ZABBIX_OPTIONS="$ZABBIX_OPTIONS -Dzabbix.timeout=$TIMEOUT -Dsun.rmi.transport.tcp.responseTimeout=${TIMEOUT}000"
fi

but they were not included to init script in all official packages at http://repo.zabbix.com/ disregarding that zabbix_java_gateway.conf was updated correctly.

It means that the customized Timeout parameter in configuration file actually doesn't have affect if gateway was installed from packages.

Default timeout in java code is 3 seconds and will be applied, but it's related to "threads handling" only.

Affected version - are versions from Fixed in the ZBX-8839