Andreas Haufler created FTPSERVER-438:
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Summary: Server logs a lot of warnings (Releasing unreserved
passive port: ...) when using passive mode
Key: FTPSERVER-438
URL: https://issues.apache.org/jira/browse/FTPSERVER-438
Project: FtpServer
Issue Type: Bug
Components: Core
Affects Versions: 1.0.6
Reporter: Andreas Haufler
Priority: Minor
When using passive mode without specifiying any port or port range a lot of
warning are output like this:
[ WARN] 2012-11-27 20:50:56,717 [admin] [127.0.0.1] Releasing unreserved
passive port: 53835
This is caused by PassivePorts#reserveNextPort() which always returns 0. But
then, PassivePorts#releasePort(int) is confused about the given port which is
not contained in the usedList.
Maybe this warning should be disabled when the usedList only contains "0".
To recreate this "bug" simply download the 1.0.6 version and start the server
with the typical config. Fire up an ftp client, switch to passive mode and put
a file. The log now contains the described error message.
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