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ChangeLog of JZlib
====================================================================
Last modified: Mon Sep 19 15:20:05 UTC 2011
Changes since version 1.0.7:
- supported some new functionalities, which have been introduced since 'zlib' 1.2.
- JZlib#{adler32,crc32}_combine,
- JZlib can handle gzip file format(RFC1952).
- added following classes,
- DeflaterOutputStream
- InflaterInputStream
- GZIPOutputStream
- GZIPInputStream
- Inflater
- Deflater
- ZStream has been deprecated.
Use Inflater and Deflater instead of it.
- GZIPHeader
- re-implemented Z{Input,Output}Stream with {Deflater,Inflater}{I/O}Stream
- those classes have been deprecated.
Use DeflaterOutputStream and InfaterInputStream instead of them.
- com/ -> src/main/java/com/
- some tests under src/test/scala/
- pom.xml for mvn, and projects/ for sbt.
Changes since version 1.0.6:
- change: memory and performance optimisations in the inflate operation.
- change: added the nowrap argument to Z{Input,Output}?Stream.
Changes since version 1.0.5:
- ZInputStream.read(byte[], int, int) method return sometimes zero
instead of -1 at the end of stream.
- ZOutputStream.end() method should not declare IOException.
- It should be possible to call ZOutputStream.end() method more times
(because you can call close() method and after it end() method in
finally block).
- ZOutputStream.finish() method should not ignore IOException from flush().
Many thanks to Matej Kraus at seznam.cz , who pointed out above problems.
Changes since version 1.0.4:
- a minor bug fix in ZInputStream
Changes since version 1.0.3:
- fixed a bug in closing ZOutputStream.
The inflating and deflating processes were not finished successfully.
- added 'finish' and 'end' methods to ZOutputStream.java
- added 'example/test_stream_deflate_inflate.java'
Changes since version 1.0.2:
- enabled pure Java implementation of adler32 and
commented out the dependency on J2SE in Adler32.java for J2ME users.
Changes since version 1.0.1:
- fixed a bug in deflating some trivial data, for example,
large data chunk filled with zero.
- added 'version' method to JZlib class.
Changes since version 1.0.0:
- added ZInputStream and ZOutputStream classes.
- fixed a typo in LICENSE.txt.
Changes since version 0.0.9:
- fixed a bug in setting a dictionary in the inflation process.
- The license was changed to a BSD style license.
- Z{Input,Output}Stream classes were deleted.
Changes since version 0.0.8:
- fixed a bug in handling a preset dictionary in the inflation process.
Changes since version 0.0.7:
- added methods to control the window size (the size of the history
buffer) and to handle the no-wrap option (no zlib header or check),
which is the undocumented functionality of zlib.
Changes since version 0.0.6:
- updated InfBlocks.java as zlib did to fix the vulnerability related to
the 'double free'. Of course, JZlib is free from such a vulnerability
like the 'double free', but JZlib had crashed with NullPointerException
by a specially-crafted block of invalid deflated data.
Changes since version 0.0.5:
- added 'flush()' method to com.jcraft.jzlib.ZOutputStream.
- fixed to take care when occurring the buffer overflow in
com.jcraft.jzlib.ZOutputStream.
Many thanks to Tim Bendfelt at cs.wisc.edu , who pointed out above problems.
Changes since version 0.0.4:
............................
- fixed a bug in Adler32 class.
- fixed a bug in ZInputStream class
- modified ZInputStream to be extended from InputStream
instead of FileInputStream.
- modified ZOutputStream to be extended from OutputStream
instead of FileOutputStream.
- modified ZStream to be changeable wbits. Give wbits value to
the method 'deflateInit' of ZStream.
Many thanks to Bryan Keller<keller@neomar.com>, who reported bugs
and made suggestions.
Changes since version 0.0.3:
............................
- fixed a bug in the compression level 0.
- modified to be compatible with JIKES's bug.
- added Z[Input,Output]Stream written by Lapo Luchini<lapo@lapo.it>.
Changes since version 0.0.2:
............................
- fixed a critical bug, which had arisen in the deflating operation with
NO_FLUSH and DEFAULT_COMPRESSION mode.
Many thanks to Bryan Keller(keller@neomar.com), who reported this glitch.
Changes since version 0.0.1:
............................
- fixed the bad compression ratio problem, which is reported from
Martin Smith(martin@spamcop.net). The compression ratio was not so good
compared with the compression ration of zlib. Now, this problem has been
fixed and, I hope, that deflated files by JZlib and zlib are completely
same bit by bit.
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