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From Stefan Bodewig <bode...@apache.org>
Subject [ANN] Apache Commons Compress 1.15 Released
Date Tue, 17 Oct 2017 17:55:23 GMT
Hash: SHA1

The Apache Commons Team is pleased to announce the release of Apache
Commons Compress 1.15.

The Apache Commons Compress Library defines an API for working with
compression and archive formats.  These include: bzip2, gzip, pack200,
lzma, xz, Snappy, traditional Unix Compress, DEFLATE, LZ4, Brotli and
ar, cpio, jar, tar, zip, dump, 7z, arj.

Compress 1.15 contains big fixes and small improvements for the tar and
zip formats. In addition the jar's manifest file now contains an
Automatic-Module-Name entry that ensures the name will be
org.apache.commons.compress when the jar is used as an automatic module
in Java9.

TarArchiveOutputStream now ensures record size is 512 and block size is
a multiple of 512 as any other value would create invalid tar
archives. This may break compatibility for code that deliberately
wanted to create such files.

Source and binary distributions are available for download from the
Apache Commons download site:


When downloading, please verify signatures using the KEYS file available
at the above location when downloading the release.

Changes in this version include:

New features:

o Added magic MANIFEST entry Automatic-Module-Name so the module
  name will be org.apache.commons.compress when the jar is used
  as an automatic module in Java9.
  Issue: COMPRESS-397.

o Added a new utility class FixedLengthBlockOutputStream that
  can be used to ensure writing always happens in blocks of a
  given size.
  Issue: COMPRESS-405. Thanks to Simon Spero.

o It is now possible to specify/read custom PAX headers when
  writing/reading tar archives.
  Issue: COMPRESS-400. Thanks to Simon Spero.

Fixed Bugs:

o Make sure "version needed to extract" in local file header and
  central directory of a ZIP archive agree with each other.
  Also ensure the version is set to 2.0 if DEFLATE is used.
  Issue: COMPRESS-394.

o Don't use a data descriptor in ZIP archives when copying a raw
  entry that already knows its size and CRC information.
  Issue: COMPRESS-395.

o Travis build redundantly repeats compilation and tests redundantly
  GitHub Pull Request #43. Thanks to Simon Spero.
  Issue: COMPRESS-413

o The MANIFEST of 1.14 lacks an OSGi Import-Package for XZ for
  Issue: COMPRESS-396.

o BUILDING.md now passes the RAT check.
  Issue: COMPRESS-406. Thanks to Simon Spero.

o Made sure ChecksumCalculatingInputStream receives valid
  checksum and input stream instances via the constructor.
  Issue: COMPRESS-412. Thanks to Michael Hausegger.

o TarArchiveOutputStream now verifies the block and record sizes
  specified at construction time are compatible with the tar
  specification. In particular 512 is the only record size
  accepted and the block size must be a multiple of 512.
  Issue: COMPRESS-407. Thanks to Simon Spero.

o Fixed class names of CpioArchiveEntry and
  CpioArchiveInputStream in various Javadocs.
  Issue: COMPRESS-415.

o The code of the extended timestamp zip extra field incorrectly
  assumed the time was stored as unsigned 32-bit int and thus
  created incorrect results for years after 2037.
  Issue: COMPRESS-416. Thanks to Simon Spero.

o Removed ZipEncoding code that became obsolete when we started
  to require Java 5 as baseline long ago.
  Issue: COMPRESS-410. Thanks to Simon Spero.

o The tar package will no longer try to parse the major and
  minor device numbers unless the entry represents a character
  or block special file.
  Issue: COMPRESS-417.

o When reading tar headers with name fields containing embedded
  NULs, the name will now be terminated at the first NUL byte.
  Issue: COMPRESS-421. Thanks to Roel Spilker.

o Simplified TarArchiveOutputStream by replacing the internal
  buffering with new class FixedLengthBlockOutputStream.
  Issue: COMPRESS-409.

For complete information on Commons Compress, including instructions
on how to submit bug reports, patches, or suggestions for improvement,
see the Apache Commons Compress website:


Stefan Bodewig, on behalf of the Apache Commons community
Version: GnuPG v1


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