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From Kristian Waagan <kristian.waa...@oracle.com>
Subject Re: [VOTE] release
Date Mon, 04 Jun 2012 15:08:52 GMT
On 01.06.12 00:10, Rick Hillegas wrote:
> Please test-drive the candidate, then vote on whether to accept
> it as a Derby release. The candidate lives at:
> http://people.apache.org/~rhillegas/

Thanks for driving the release process of 10.9, Rick!

As one step of the testing, I decided to check if I can verify that you 
have actually provided the bits from the 10.9 branch. There are two 
things that need to be ascertained:
  o That the sources are indeed the sources for
  o That the class files have actually been built from correct sources.

The very first thing I did was to verify the checksums and the 
signatures for the files I downloaded.

For the first part I simply compared the contents of the source bundle 
with the 10.9 repository at the relevant revision. All files except 
STATUS matched, but here the only difference was a localized timestamp. 
This is a result of the variable substitution feature in Subversion, and 
can be safely ignored:
< Last modified at [$Date: 2012-05-23 14:34:52 -0700 (Wed, 23 May 2012) 
$] by $Author: rhillegas $.
 > Last modified at [$Date: 2012-05-23 23:34:52 +0200 (Wed, 23 May 2012) 
$] by $Author: rhillegas $.
^^^^^^ ./STATUS

I also discovered that the following files exist in the repository, but 
not in the source bundle (for brevity I've removed the directory 
listings and only included actual files):
< ./.gitignore
< ./releaseSummary.xml
< ./tools/l10n/build.xml
< ./tools/l10n/LocCompare.java
< ./tools/l10n/README
< ./tools/release/jirasoap/pom.xml
< ./tools/release/jirasoap/src/main/wsdl/jirasoapservice-v2.wsdl
< ./tools/release/notices/felix.txt
< ./tools/release/notices/initialgrant.txt
< ./tools/release/notices/jdbcstubs.txt
< ./tools/release/notices/nisttestgrant.txt
< ./tools/release/notices/preamble.txt
< ./tools/release/notices/separator.txt
< ./tools/release/notices/xalan.txt
< ./tools/release/templates/releaseNote.html
< ./tools/release/templates/releaseSummaryTemplate.xml

Is this as expected?

Things got a little more interesting for step two. Simply comparing the 
JARs won't work, for instance there are some meta data in there that 
will make them look different unless certain parts of the build 
environments match. Also, I suspect the SVN revision number must be set 
somehow if building from the source bundle (i.e. "exported" vs actual 
revision number).
I ended up extracting the files in the JARs, and comparing them 
one-by-one. I tried simple diff, but ended up disassembling the class 
files and comparing the resulting output.
Overall things looked ok, but for some reason the following class files 

Given such a small number of differences with this approach, I dug a 
little deeper. My findings:
  o ClassSizeCatalog: different ordering
  o ResultSetColumnList: one extra checkcast instruction in my class
  o HashTableResultSet: two extra checkcast instructions in my class
  o IndexRowToBaseRowResultSet: one extra checkcast instruction in my class
  o WindowsResultSet: one extra checkcast instruction in my class
  o ProjectRestrictResultSet: one extra checkcast instruction in my class

I don't know what causes these differences, but Rick built the RC on OS 
X with a Java 6 compiler, whereas I built the sources on Solaris 11 with 
a Java 7 compiler. As a third data point I checked this with Java 7u4 on 
Linux, and here too I got an extra checkcast instruction compared to the 
RC. So this seems to be a difference between the Java 6 and Java 7 
compilers used.

In any case, it looks like the release candidate is indeed produced by 
building the sources from the 10.9 branch at revision 1344872 :)


> The polls close at 5:00 pm San Francisco time on Thursday, June 21.
> is a feature release, described in greater detail here:
> http://wiki.apache.org/db-derby/DerbyTenNineOneRelease
> Thanks to everyone who contributed to this release.
> Regards,
> -Rick

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