java.lang.UnsupportedOperationException: null

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java.lang.UnsupportedOperationException: null
at java.util.AbstractMap.put(AbstractMap.java:209)
at io.vertx.core.impl.AddressResolver.(AddressResolver.java:115)
at io.vertx.core.impl.VertxImpl.(VertxImpl.java:152)
at io.vertx.core.impl.VertxImpl.(VertxImpl.java:119)
at io.vertx.core.impl.VertxImpl.(VertxImpl.java:115)
at io.vertx.core.impl.VertxFactoryImpl.vertx(VertxFactoryImpl.java:34)
at io.vertx.core.Vertx.vertx(Vertx.java:80)
at com.something.something.Main.main(Main.java:108)

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