Try `java.lang.Void.TYPE`. To format code in Slack...

# announcements

[aslan]

Try java.lang.Void.TYPE.
To format code in Slack, wrap it into three backticks.
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miha-x64: thanks! now there is another question )
it perfectly works this way

lookup.findStatic(c, "showHello", mtype).invokeWithArguments()

but couldn't find out how to make it work with simple "invoke()" method.