java.net.ConnectException: Connection refused: connect

GitHub | JapuDCret | 1 year ago
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Root Cause Analysis

  1. java.net.ConnectException

    Connection refused: connect

    at java.net.DualStackPlainSocketImpl.waitForConnect()
  2. Java RT
    HttpURLConnection.getInputStream
    1. java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    2. java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:85)
    3. java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:345)
    4. java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    5. java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    6. java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
    7. java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    8. java.net.Socket.connect(Socket.java:589)
    9. sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    10. sun.net.www.http.HttpClient.openServer(HttpClient.java:432)
    11. sun.net.www.http.HttpClient.openServer(HttpClient.java:527)
    12. sun.net.www.http.HttpClient.<init>(HttpClient.java:211)
    13. sun.net.www.http.HttpClient.New(HttpClient.java:308)
    14. sun.net.www.http.HttpClient.New(HttpClient.java:326)
    15. sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1168)
    16. sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1104)
    17. sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:998)
    18. sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:932)
    19. sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1512)
    20. sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1440)
    20 frames
  3. Commons IO
    FileUtils.copyURLToFile
    1. org.apache.commons.io.FileUtils.copyURLToFile(FileUtils.java:1489)
    1 frame
  4. Unknown
    CreateInstanceWindow.lambda$init$4
    1. InstanceContainer.initScript(InstanceContainer.java:152)
    2. InstanceContainer.init(InstanceContainer.java:61)
    3. CreateInstanceWindow.lambda$init$4(CreateInstanceWindow.java:176)
    3 frames