XZ for Java 1.10 is available at <https://tukaani.org/xz/java.html> and
in the Maven Central (groupId = org.tukaani, artifactId = xz).
Here is an extract from the NEWS file:
* Licensing change: From version 1.10 onwards, XZ for Java is under
the BSD Zero Clause License (0BSD). 1.9 and older are in the
public domain and obviously remain so; the change only affects
the new releases.
0BSD is an extremely permissive license which doesn't require
retaining or reproducing copyright or license notices when
distributing the code, thus in practice there is extremely
little difference to public domain.
* Mark copyright and license information in the source package so
that it is compliant to the [REUSE Specification version 3.2](
<https://reuse.software/spec-3.2/>).
* Improve LZMAInputStream.enableRelaxedEndCondition():
- Error detection is slightly better.
- The input position will always be at the end of the stream
after successful decompression.
* Support .lzma files that have both a known uncompressed size and
the end marker. Such files are uncommon but valid. The same issue
was fixed in XZ Utils 5.2.6 in 2022.
* Add ARM64 and RISC-V BCJ filters.
* Speed optimizations:
- Delta filter
- LZMA/LZMA2 decoder
- LZMA/LZMA2 encoder (partially Java >= 9 only)
- CRC64 (Java >= 9 only)
* Changes that affect API/ABI compatibility:
- Change XZOutputStream constructors to not call the method
`public void updateFilters(FilterOptions[] filterOptions)`.
- In SeekableXZInputStream, change the method
`public void seekToBlock(int blockNumber)` to not call
the method `public long getBlockPos(int blockNumber)`.
- Make the filter options classes `final`:
* ARM64Options
* ARMOptions
* ARMThumbOptions
* DeltaOptions
* IA64Options
* LZMA2Options
* PowerPCOptions
* RISCVOptions
* SPARCOptions
* X86Options
* Add new system properties:
- `org.tukaani.xz.ArrayCache` sets the default ArrayCache:
`Dummy` (default) or `Basic`. See the documentation of
ArrayCache and BasicArrayCache.
- `org.tukaani.xz.MatchLengthFinder` (Java >= 9 only) sets the
byte array comparison method used for finding match lengths in
LZMA/LZMA2 encoder: `UnalignedLongLE` (default on x86-64 and
ARM64) or `Basic` (default on other systems). The former could
be worth testing on other 64-bit little endian systems that
support fast unaligned memory access.
* Build system (Apache Ant):
- Building the documentation no longer downloads `element-list`
or `package-list` file; the build is now fully offline. Such
files aren't needed with OpenJDK >= 16 whose `javadoc` can
auto-link to platform documentation on docs.oracle.com. With
older OpenJDK versions, links to platform documentation aren't
generated anymore.
- Don't require editing of build.properties to build with
OpenJDK 8. Now it's enough to use `ant -Djava8only=true`.
Older OpenJDK versions are no longer supported because
the main source tree uses Java 8 features.
- Support reproducible builds. See the notes in README.md.
- Add a new Ant target `pom` that only creates xz.pom.
- Change `ant dist` to use `git archive` to create a .zip file.
* Convert the plain text documentation in the source tree to
Markdown (CommonMark).
* The binaries of 1.10 in the Maven Central require Java 8 and
contain optimized classes for Java >= 9 as multi-release JAR.
They were built with OpenJDK 21.0.4 on GNU/Linux using the
following command:
SOURCE_DATE_EPOCH=1722262226 TZ=UTC0 ant maven
--
Lasse Collin
