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From: Hermann.Pruem@f-it.de
To: commons-user@jakarta.apache.org
Subject: [NET FTPClient] MalformedPatternException when trying to listFile
	s()
Date: Fri, 28 May 2004 11:46:24 +0200
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Hello All, 

I am having problems with the FTPClient class of commons.net (1.2.1). When I
do 

FTPFile[] f = ftpClient.listFiles(filename);

a runtime exception is thrown (the file really exists on the server, the ftp
connection is working correctly).


java.lang.NoClassDefFoundError:
org/apache/oro/text/regex/MalformedPatternException
	at
org.apache.commons.net.ftp.parser.DefaultFTPFileEntryParserFactory.createUni
xFTPEntryParser(DefaultFTPFileEntryParserFactory.java:121)
	at
org.apache.commons.net.ftp.parser.DefaultFTPFileEntryParserFactory.createFil
eEntryParser(DefaultFTPFileEntryParserFactory.java:84)
	at
org.apache.commons.net.ftp.FTPClient.initiateListParsing(FTPClient.java:2306
)
	at
org.apache.commons.net.ftp.FTPClient.listFiles(FTPClient.java:2055)
	at
org.apache.commons.net.ftp.FTPClient.listFiles(FTPClient.java:2106)
	at
de.freudenberg.it.ssts.liet.FTPConnection.getFileSize(FTPConnection.java:80)
	at
de.freudenberg.it.ssts.liet.ProcessingThread.processOutFile(ProcessingThread
.java:184)
	at
de.freudenberg.it.ssts.liet.ProcessingThread.run(ProcessingThread.java:131)
	at java.lang.Thread.run(Thread.java:484)



I have managed to trace this down as follows: Obviously, a
UnixFTPEntryParser is created (the server is identified as "UNIX Type: L8
Version: BSD-44"). On this creation, a RegexFTPFileEntryParserImpl is
created with a regex pattern given in the libraries source code. A
Perl5Matcher and a Perl5Compiler() are created and the regex pattern is used
to compile(). 

And now things are getting weird:
Problem 1: compile() throws a MalformedPatternException in case the regex
pattern is not correct. Here, compile() tries to throw it, so there seems to
be something wrong with the pattern. Is this a known issue?
Or am I really the first one to have this problem? Or have I simply done
something wrong?

Problem 2: compile() does not even manage to throw this exception, so there
must be some library files missing. I am a bit at a loss with this.

Can anybody help?

Hermann

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