Miscellaneous improvements to "jar".
Martin Buchholz
martinrb at google.com
Thu Jun 25 19:00:32 UTC 2009
I have an updated version of this fix, with these changes:
- Documented the turkish i problem
/**
* Compares two strings for equality, ignoring case. The second
* argument must contain only upper-case ASCII characters.
* We don't want case comparison to be locale-dependent (else we
* have the notorious "turkish i bug").
*/
private boolean equalsIgnoreCase(String s, String upper) {
- Refactored code so that updateEntry now also sets the method to STORED.
/**
* Updates a ZipEntry which describes the data read by this
* output stream, in STORED mode.
*/
public void updateEntry(ZipEntry e) {
e.setMethod(ZipEntry.STORED);
e.setSize(n);
e.setCrc(crc.getValue());
}
- addIndex was never updating the size in the ZipEntry (as required),
which was not previously noticed because closeEntry was never called.
private void addIndex(JarIndex index, ZipOutputStream zos)
throws IOException
{
ZipEntry e = new ZipEntry(INDEX_NAME);
e.setTime(System.currentTimeMillis());
if (flag0) {
CRC32OutputStream os = new CRC32OutputStream(crc32);
index.write(os);
os.updateEntry(e);
}
zos.putNextEntry(e);
index.write(zos);
zos.closeEntry();
}
http://cr.openjdk.java.net/~martin/jar-misc/
Previous webrev:
http://cr.openjdk.java.net/~martin/jar-misc.0/
Martin
On Wed, Jun 24, 2009 at 19:34, Martin Buchholz <martinrb at google.com> wrote:
> Hi jar team,
>
> I have a bunch of minor improvements to
> src/share/classes/sun/tools/jar/Main.java
>
> Toby and Xueming, please review.
>
> Warning: the index code has not been maintained for many years.
>
> Xueming, please file a bug.
>
> Synopsis: Miscellaneous improvements to "jar".
> Description:
> - Use standard jdk coding style for javadoc
> - Don't create a temp file for jar index in STORED mode.
> - Don't use synchronized collections.
> - Fix javac warnings.
> - Don't define new names for things like INDEX_NAME;
> use static import instead.
> - more efficiently compare special file names in update mode.
> Update mode should be measurably faster.
> - make CRC32OutputStream a nested class.
> refactor crc32.reset and updating entry into CRC32OutputStream.
> - Fix apparently benign bug updating n in CRC32OutputStream.write(byte[],
> int, int)
>
> Evaluation: Yep.
>
> http://cr.openjdk.java.net/~martin/jar-misc/<http://cr.openjdk.java.net/%7Emartin/jar-misc/>
>
> Thanks,
>
> Martin
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.openjdk.java.net/pipermail/core-libs-dev/attachments/20090625/e13a5733/attachment.html>
More information about the core-libs-dev
mailing list