Second java process with -client

[zyxxyz]

ps -AF | grep java

shows me 2 java processes, one of them - java with all server parameters equal to result of zmlocalconfig mailboxd_java_options
another one - aswell java but with other parameters:

/opt/zimbra/java/bin/java -XX:ErrorFile=/opt/zimbra/log -client -Xmx256m -Dzimbra.home=/opt/zimbra -Djava.library.path=/opt/zimbra/lib -Djava.ext.dirs=/opt/zimbra/java/jre/lib/ext:/opt/zimbra/lib/jars:/opt/zimbra/lib/ext-common:/opt/zimbra/lib/ext/clamscanner -Djava.io.tmpdir=/opt/zimbra/data/tmp -Dpython.cachedir=/opt/zimbra/data/tmp/jython-cachedir org.python.util.jython /opt/zimbra/libexec/zmconfigd

I thought it's web admin console but closing it changed nothing, process is still working and its memory usage is growing.
Repeating after restart.

Is that normal? What it responsible for?