java.net.ConnectException: Connection refused: connect

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Connection refused: connect
java.net.ConnectException: Connection refused: connect
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:305)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:171)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:158)
at java.net.Socket.connect(Socket.java:426)
at java.net.Socket.connect(Socket.java:376)
at sun.net.NetworkClient.doConnect(NetworkClient.java:139)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:386)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:602)
at sun.net.www.http.HttpClient.(HttpClient.java:303)
at sun.net.www.http.HttpClient.(HttpClient.java:264)
at sun.net.www.http.HttpClient.New(HttpClient.java:336)
at sun.net.www.http.HttpClient.New(HttpClient.java:317)
at sun.net.www.http.HttpClient.New(HttpClient.java:312)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:481)
at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:472)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:574)
at java.net.URL.openStream(URL.java:960)
at undefined.Example.(Example.java:9)
at undefined.Example.main(Example.java:16)

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