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  1. Commons Net
  2. NET-594

TelnetClient._closeOutputStream unhandled exception from FilterOutputStream.close

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 3.4
    • 3.6
    • Telnet
    • None
    • Windows 7 64bit

    Description

      As part of fixing an existing bug Oracle introduced a new bug into FilterOutputStream.close:

      http://bugs.java.com/bugdatabase/view_bug.do?bug_id=8054565

      While the bug is marked as fixed the fix will not be available until Java 9 from what I can tell and is not in the latest release as of writing (1.8.91)

      This bug can also be reproduced through remote socket closure.

      Due to this bug the TelnetClient when calling disconnect() throws an unhandled exception and is unable to close the connection, if the socket was remotely closed.

      Stack Trace:

      java.net.SocketException: Socket closed
      at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:121)
      at java.net.SocketOutputStream.write(SocketOutputStream.java:147)
      at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82)
      at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140)
      at java.io.FilterOutputStream.close(FilterOutputStream.java:159)
      at org.apache.commons.net.telnet.TelnetClient._closeOutputStream(TelnetClient.java:86)
      at org.apache.commons.net.telnet.TelnetOutputStream.close(TelnetOutputStream.java:155)
      at org.apache.commons.net.telnet.TelnetClient.disconnect(TelnetClient.java:127)

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            Unassigned Unassigned
            BWorrall Brad Worrall
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            Dates

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              Updated:
              Resolved:

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