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https://issues.apache.org/jira/browse/NET-217?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13011802#comment-13011802
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Bogdan Drozdowski commented on NET-217:
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I had a similar problem with TCP Sockets - they remained in a non-closed state
(like TIMED_WAIT, CLOSE_WAIT or whatever) despite having been closed and thus
they couldn't be immediatly reopened. My solution was to set the Sockets to
null (which you're doing already) and to manually force garbage collection by
calling System.gc(), which you're not doing. Since TFTPServer is in test, and
not in the main source package, I think that garbage collection could be added
to shutdown() or after the call to shutdown() in TFTPServerPathTest. This might
not be the problem, but I'm just saying what I've observed on my programs.
TFTPServerPathTest fails in testWriteOutsideHome
Key: NET-217
URL: https://issues.apache.org/jira/browse/NET-217
Project: Commons Net
Issue Type: Bug
Components: TFTP
Affects Versions: 2.0
Environment: $ mvn -v
Maven version: 2.0.8
Java version: 1.6.0_06
OS name: linux version: 2.6.24-16-generic arch: i386 Family: unix
Reporter: Niklas Gustavsson
The TFTPServerPathTest fails in the testWriteOutsideHome method with the
following stack trace:
Tests run: 3, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 0.045 sec
FAILURE!
testWriteOutsideHome(org.apache.commons.net.tftp.TFTPServerPathTest) Time
elapsed: 0.003 sec ERROR!
java.net.BindException: Address already in use
at java.net.PlainDatagramSocketImpl.bind0(Native Method)
at
java.net.PlainDatagramSocketImpl.bind(PlainDatagramSocketImpl.java:82)
at java.net.DatagramSocket.bind(DatagramSocket.java:368)
at java.net.DatagramSocket.init(DatagramSocket.java:210)
at java.net.DatagramSocket.init(DatagramSocket.java:261)
at java.net.DatagramSocket.init(DatagramSocket.java:234)
at
org.apache.commons.net.DefaultDatagramSocketFactory.createDatagramSocket(DefaultDatagramSocketFactory.java:59)
at
org.apache.commons.net.DatagramSocketClient.open(DatagramSocketClient.java:119)
at org.apache.commons.net.tftp.TFTPServer.launch(TFTPServer.java:239)
at org.apache.commons.net.tftp.TFTPServer.init(TFTPServer.java:161)
at
org.apache.commons.net.tftp.TFTPServerPathTest.testWriteOutsideHome(TFTPServerPathTest.java:137)
This breaks are build for FtpServer as we currently bring in commons-net as
there are no snapshots available.
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