java.lang.IllegalArgumentException

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  • java.lang.IllegalArgumentException: Host name may not be null at org.apache.http.util.Args.containsNoBlanks(Args.java:81) at org.apache.http.HttpHost.<init>(HttpHost.java:80) at org.apache.http.HttpHost.<init>(HttpHost.java:99) at com.ullink.slack.simpleslackapi.impl.SlackWebSocketSessionImpl.<init>(SlackWebSocketSessionImpl.java:224) at com.ullink.slack.simpleslackapi.impl.SlackSessionFactory.createWebSocketSlackSession(SlackSessionFactory.java:25) at com.faris.bot.SlackBot.main(SlackBot.java:201) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)

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