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https://issues.apache.org/jira/browse/COMPRESS-177?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13212631#comment-13212631
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Sebb commented on COMPRESS-177:
-------------------------------
Looks like the archive might be using the Joerg Schilling STAR format [1] for
numeric fields:
Star implements a vendor specific (and thus non-POSIX)
extension to put bigger numbers into the numeric fields.
This is done by using a base 256 coding. The top bit of the
first character in the appropriate 8 character or 12 charac-
ter field is set to flag non octal coding.
The value certainly makes sense in that context.
As to the exception that is thrown, IAE makes sense in the context of the
TarUtils.parseOctal() method.
Maybe that should be converted to IOE by one of the higher level methods.
[1] http://cdrecord.berlios.de/private/man/star/star.4.html
> TarArchiveInputStream throws IllegalArgumentException on valid TAR file
> -----------------------------------------------------------------------
>
> Key: COMPRESS-177
> URL: https://issues.apache.org/jira/browse/COMPRESS-177
> Project: Commons Compress
> Issue Type: Bug
> Components: Archivers
> Affects Versions: 1.3
> Reporter: Gili
>
> Issue originally reported at http://java.net/jira/browse/TRUEZIP-219
> # Download
> http://sourceforge.net/projects/boost/files/boost/1.48.0/boost_1_48_0.tar.gz?use_mirror=autoselect
> # I invoke Files.newDirectoryStream() on a TPath pointing to the resulting
> .tar.gz file
> # The following exception is thrown:
> {code}
> java.lang.IllegalArgumentException: Invalid byte -1 at offset 7 in '<some
> bytes>' len=8
> at
> org.apache.commons.compress.archivers.tar.TarUtils.parseOctal(TarUtils.java:86)
> at
> org.apache.commons.compress.archivers.tar.TarArchiveEntry.parseTarHeader(TarArchiveEntry.java:790)
> at
> org.apache.commons.compress.archivers.tar.TarArchiveEntry.<init>(TarArchiveEntry.java:308)
> at
> org.apache.commons.compress.archivers.tar.TarArchiveInputStream.getNextTarEntry(TarArchiveInputStream.java:198)
> at
> org.apache.commons.compress.archivers.tar.TarArchiveInputStream.getNextEntry(TarArchiveInputStream.java:380)
> at
> de.schlichtherle.truezip.fs.archive.tar.TarInputShop.<init>(TarInputShop.java:91)
> at
> de.schlichtherle.truezip.fs.archive.tar.TarDriver.newTarInputShop(TarDriver.java:159)
> at
> de.schlichtherle.truezip.fs.archive.tar.TarGZipDriver.newTarInputShop(TarGZipDriver.java:82)
> at
> de.schlichtherle.truezip.fs.archive.tar.TarDriver.newInputShop(TarDriver.java:151)
> at
> de.schlichtherle.truezip.fs.archive.tar.TarDriver.newInputShop(TarDriver.java:47)
> at
> de.schlichtherle.truezip.fs.archive.FsDefaultArchiveController.mount(FsDefaultArchiveController.java:170)
> at
> de.schlichtherle.truezip.fs.archive.FsFileSystemArchiveController$ResetFileSystem.autoMount(FsFileSystemArchiveController.java:98)
> at
> de.schlichtherle.truezip.fs.archive.FsFileSystemArchiveController.autoMount(FsFileSystemArchiveController.java:47)
> at
> de.schlichtherle.truezip.fs.archive.FsArchiveController.autoMount(FsArchiveController.java:129)
> at
> de.schlichtherle.truezip.fs.archive.FsArchiveController.getEntry(FsArchiveController.java:160)
> at
> de.schlichtherle.truezip.fs.archive.FsContextController.getEntry(FsContextController.java:117)
> at
> de.schlichtherle.truezip.fs.FsDecoratingController.getEntry(FsDecoratingController.java:76)
> at
> de.schlichtherle.truezip.fs.FsDecoratingController.getEntry(FsDecoratingController.java:76)
> at
> de.schlichtherle.truezip.fs.FsConcurrentController.getEntry(FsConcurrentController.java:164)
> at
> de.schlichtherle.truezip.fs.FsSyncController.getEntry(FsSyncController.java:108)
> at
> de.schlichtherle.truezip.fs.FsFederatingController.getEntry(FsFederatingController.java:156)
> at
> de.schlichtherle.truezip.nio.file.TFileSystem.newDirectoryStream(TFileSystem.java:348)
> at
> de.schlichtherle.truezip.nio.file.TPath.newDirectoryStream(TPath.java:963)
> at
> de.schlichtherle.truezip.nio.file.TFileSystemProvider.newDirectoryStream(TFileSystemProvider.java:344)
> at java.nio.file.Files.newDirectoryStream(Files.java:400)
> at
> com.googlecode.boostmavenproject.GetSourcesMojo.convertToJar(GetSourcesMojo.java:248)
> at
> com.googlecode.boostmavenproject.GetSourcesMojo.download(GetSourcesMojo.java:221)
> at
> com.googlecode.boostmavenproject.GetSourcesMojo.execute(GetSourcesMojo.java:111)
> at
> org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)
> ... 20 more
> {code}
> Christian Schlichtherle (the TrueZip author) is expecting the Commons
> Compress to throw IOException instead of IllegalArgumentException. I am
> expecting no exception to be thrown because as far as I can tell the TAR file
> is valid (opens up in WinRar and Ubuntu's built-in Archiver).
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