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;; I'm trying to use https://github.com/cathive/fx-dbus

user=> (import [org.freedesktop.dbus Message$MethodArgument Message$StringMethodArgument Message])
org.freedesktop.dbus.Message
user=> (def msg (Message/newMethodCall "org.freedesktop.Notifications" "/org/freedesktop/Notifications" "org.freedesktop.Notifications" "Notify"))
#'user/msg
user=> (def app-name (Message$MethodArgument/stringParam ""))
#'user/app_name

user=> (.addArguments msg app-name)

ClassCastException Cannot cast org.freedesktop.dbus.Message$StringMethodArgument to [Lorg.freedesktop.dbus.Message$MethodArgument;  java.lang.Class.cast (Class.java:3258)

user=> (.addArguments msg (.cast Message$MethodArgument app-name))

ClassCastException Cannot cast org.freedesktop.dbus.Message$StringMethodArgument to [Lorg.freedesktop.dbus.Message$MethodArgument;  java.lang.Class.cast (Class.java:3258)

user=> (ancestors (class app-name))
#{org.freedesktop.dbus.Message$MethodArgument java.lang.Object}

;; classes are defined like this:
;; public static final class StringMethodArgument extends MethodArgument<String>
;; public static abstract class MethodArgument<T>

;; method signature is:
;; public void addArguments(final MethodArgument... arguments)