WebSphere Application Server & Liberty

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On wlp22.0.0.8 or later, a web service request started to fail with "java.net.SocketException: Unexpected end of file from server" occasionally.

  • 1.  On wlp22.0.0.8 or later, a web service request started to fail with "java.net.SocketException: Unexpected end of file from server" occasionally.

    Posted Sun August 27, 2023 09:10 PM
    The error looks like the response data is malformed, but I'm sure this is like a timing issue.

    Error Stack:
    ```
    Caused by: java.net.SocketException: Unexpected end of file from server
    at sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:884)
    at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:709)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1619)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1524)
    at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:491)
    at org.apache.cxf.transport.http.URLConnectionHTTPConduit$URLConnectionWrappedOutputStream$2.run(URLConnectionHTTPConduit.java:424)
    at org.apache.cxf.transport.http.URLConnectionHTTPConduit$URLConnectionWrappedOutputStream$2.run(URLConnectionHTTPConduit.java:420)
    at java.security.AccessController.doPrivileged(AccessController.java:747)
    at org.apache.cxf.transport.http.URLConnectionHTTPConduit$URLConnectionWrappedOutputStream.getResponseCode(URLConnectionHTTPConduit.java:420)
    at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.doProcessResponseCode(HTTPConduit.java:1659)
    at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.handleResponseInternal(HTTPConduit.java:1687)
    at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.handleResponse(HTTPConduit.java:1632)
    at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.close(HTTPConduit.java:1424)
    ... 41 more
    ```

    * Topology *
    WebService requester/wlp --- forward proxy(IHS) --- WebService provider/wlp


    ------------------------------
    Yoshiki Yamada
    IBM Japan
    ------------------------------


  • 2.  RE: On wlp22.0.0.8 or later, a web service request started to fail with "java.net.SocketException: Unexpected end of file from server" occasionally.
    Best Answer

    Posted Sun August 27, 2023 09:10 PM
    This is a known issue fixed in
    https://github.com/OpenLiberty/open-liberty/issues/25866


    ------------------------------
    Yoshiki Yamada
    IBM Japan
    ------------------------------

    Original Message