[Jazzlib-developers] Patch to fix various bugs and provide enhancements

[Christian S. <chr...@sc...>]

Hi Jochen,

I have finally completed my bug fixes and enhancements and run a lot of
tests with several thousand files and some gigabytes of data in order to
ensure maximum stability. Please find enclosed the context diff on the
source tree as you have suggested - it is compressed using the package, of
course... ;-) (I have masqueraded it as a .jar file to force sourceforge's
mailing list daemon to accept it).

In summary I have fixed the following bugs:

+ ZIP file sizes up to 4GB are now supported - this is the maximum with the
ZIP32 file format.

+ Fixed the time conversion bug which made it impossible to use the last
modification time.

+ Implemented fail-fast-behaviour in the ZipFile class constructors for
compatibility with JDK

In addition, the following enhancements were made. More detail on those can
be found in the package description which I've added:

+ Added public constructors to ZipInputStream, ZipOutputStream and ZipFile
to specify other character sets for entry names and comments than UTF-8.
E.g. CP437 is most widely used on Windows.

+ Added protected constructors and methods to ZipInputStream,
ZipOutputStream and ZipFile to specify a different compression/decompression
engine or a different configuration than the defaults of this package. E.g.
on platforms where the JDK uses native methods for the
Inflater/Deflater/CRC32 classes it is very beneficial to use java.util.zip.*
instead of the classes in this package for increased performance
(compression performs better than factor two on Windows!).

+ Slight performance increases with ZipFile, ZipInputStream, ZipOutputStream
and ZipEntry.

Please have a look at my modifications and incorporate them into the
package.

With best regards,
Christian Schlichtherle
---
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10707 Berlin
 
Mobil: 0173 / 27 12 470
mailto:chr...@sc...
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