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Reply-To: <pawanraj@elitecore.com>
From: "Pawanraj Sadhwani" <pawanraj@elitecore.com>
To: "'Ant Users List'" <user@ant.apache.org>
Subject: RE: unzip Task Throws Java Exception on Valid Files
Date: Wed, 21 Apr 2004 20:04:01 +0530
Message-ID: <005301c427ad$b2e82400$8801a8c0@elitecore86>
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hi

This is a newbie solution, but it might work! :-)

Try using gunzip or bunzip2 task of Ant. Maybe they are zipped in that
format?

Pawan

-----Original Message-----
From: EJ Ciramella [mailto:eciramella@upromise.com]
Sent: Wednesday, April 21, 2004 7:44 PM
To: Ant Users List
Subject: RE: unzip Task Throws Java Exception on Valid Files


Can you open them with winzip?  I saw something similar when I was making
tar files not too long ago.  I created a tar file with compression of gzip
turned on and the file named something.tar.  Winzip puked but when I changed
the extension to tgz, Winzip could properly extract the tar file inside.
Turn on verbose and debug just for giggles.

-----Original Message-----
From: David F. White [mailto:dwhite@opentext.com]
Sent: Wednesday, April 21, 2004 10:12 AM
To: user@ant.apache.org
Subject: unzip Task Throws Java Exception on Valid Files


I have several zip files that I can use with the WinZip application without 
any problems.  However, the Ant "unzip" task cannot perform the extract 
operation on these files without throwing the following exception:

getData:
      [echo] Extracting data files from C:/Downloads/TSNData...
     [unzip] Expanding: C:\Downloads\TSNData\ctx0409i.zip into 
C:\Utilities\Tracker\csvdata

BUILD FAILED
java.lang.IllegalArgumentException: invalid compression method
         at java.util.zip.ZipEntry.setMethod(ZipEntry.java:209)
         at 
org.apache.tools.zip.ZipFile.populateFromCentralDirectory(ZipFile.java:255)
         at org.apache.tools.zip.ZipFile.<init>(ZipFile.java:143)
         at org.apache.tools.ant.taskdefs.Expand.expandFile(Expand.java:121)
         at org.apache.tools.ant.taskdefs.Expand.execute(Expand.java:108)
         at 
org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:269)
         at org.apache.tools.ant.Task.perform(Task.java:364)
         at org.apache.tools.ant.Target.execute(Target.java:301)
         at org.apache.tools.ant.Target.performTasks(Target.java:328)
         at org.apache.tools.ant.Project.executeTarget(Project.java:1215)
         at org.apache.tools.ant.Project.executeTargets(Project.java:1063)
         at org.apache.tools.ant.Main.runBuild(Main.java:632)
         at org.apache.tools.ant.Main.startAnt(Main.java:183)
         at org.apache.tools.ant.launch.Launcher.run(Launcher.java:197)
         at org.apache.tools.ant.launch.Launcher.main(Launcher.java:56)

Total time: 0 seconds
java.lang.IllegalArgumentException: invalid compression method
         at java.util.zip.ZipEntry.setMethod(ZipEntry.java:209)
         at 
org.apache.tools.zip.ZipFile.populateFromCentralDirectory(ZipFile.java:255)
         at org.apache.tools.zip.ZipFile.<init>(ZipFile.java:143)
         at org.apache.tools.ant.taskdefs.Expand.expandFile(Expand.java:121)
         at org.apache.tools.ant.taskdefs.Expand.execute(Expand.java:108)
         at 
org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:269)
         at org.apache.tools.ant.Task.perform(Task.java:364)
         at org.apache.tools.ant.Target.execute(Target.java:301)
         at org.apache.tools.ant.Target.performTasks(Target.java:328)
         at org.apache.tools.ant.Project.executeTarget(Project.java:1215)
         at org.apache.tools.ant.Project.executeTargets(Project.java:1063)
         at org.apache.tools.ant.Main.runBuild(Main.java:632)
         at org.apache.tools.ant.Main.startAnt(Main.java:183)
         at org.apache.tools.ant.launch.Launcher.run(Launcher.java:197)
         at org.apache.tools.ant.launch.Launcher.main(Launcher.java:56) 
invalid compression method

Has anybody encountered this error before and is there a solution?

Thanks...

Dave White


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