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https://issues.apache.org/jira/browse/MSHADE-420?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17696126#comment-17696126
]
Niels Basjes commented on MSHADE-420:
-------------------------------------
Some basic investigation
{code:bash}
$ unzip -l
m2/repository/com/fasterxml/woodstox/woodstox-core/6.2.7/woodstox-core-6.2.7.jar
| fgrep com/ctc/wstx/api/WriterConfig.class
16366 2021-11-21 02:25 com/ctc/wstx/api/WriterConfig.class
{code}
{code:bash}
$ unzip -l
content/org/apache/tika/buildcache/tika/target/reference/tika-parser-nlp-package-2.4.0.jar
| fgrep com/ctc/wstx/api/WriterConfig.class
16366 2021-11-20 20:25 com/ctc/wstx/api/WriterConfig.class
{code}
{code:bash}
$ unzip -l
content/org/apache/tika/buildcache/tika/tika-parsers/tika-parsers-ml/tika-parser-nlp-package/target/tika-parser-nlp-package-2.4.0.jar
| fgrep com/ctc/wstx/api/WriterConfig.class
16366 2021-11-21 01:25 com/ctc/wstx/api/WriterConfig.class
{code}
I then used a shell in the rebuild docker image and only rebuilt this specific
jar file.
{code:bash}
$ mvn -Papache-release clean package -DskipTests -Dmaven.javadoc.skip
-Dgpg.skip -Dossindex.skip -Duser.home=/var/maven/
{code}
Check:
{code:bash}
$ unzip -l
content/org/apache/tika/buildcache/tika/tika-parsers/tika-parsers-ml/tika-parser-nlp-package/target/tika-parser-nlp-package-2.4.0.jar
| fgrep com/ctc/wstx/api/WriterConfig.class
16366 2021-11-21 01:25 com/ctc/wstx/api/WriterConfig.class
{code}
Ok, still the same.
{code:bash}
$ export TZ=America/New_York
$ mvn -Papache-release clean package -DskipTests -Dmaven.javadoc.skip
-Dgpg.skip -Dossindex.skip -Duser.home=/var/maven/
{code}
Check again:
{code:bash}
$ unzip -l
content/org/apache/tika/buildcache/tika/tika-parsers/tika-parsers-ml/tika-parser-nlp-package/target/tika-parser-nlp-package-2.4.0.jar
| fgrep com/ctc/wstx/api/WriterConfig.class
16366 2021-11-20 20:25 com/ctc/wstx/api/WriterConfig.class
{code}
Ok, looks good.
{code:bash}
$ diffoscope
content/org/apache/tika/buildcache/tika/target/reference/tika-parser-nlp-package-2.4.0.jar
content/org/apache/tika/buildcache/tika/tika-parsers/tika-parsers-ml/tika-parser-nlp-package/target/tika-parser-nlp-package-2.4.0.jar
{code}
and no output !
{code:bash}
$ md5sum
content/org/apache/tika/buildcache/tika/target/reference/tika-parser-nlp-package-2.4.0.jar
content/org/apache/tika/buildcache/tika/tika-parsers/tika-parsers-ml/tika-parser-nlp-package/target/tika-parser-nlp-package-2.4.0.jar
5840fe7dbbbfb1b2ebb5973733621955
content/org/apache/tika/buildcache/tika/target/reference/tika-parser-nlp-package-2.4.0.jar
5840fe7dbbbfb1b2ebb5973733621955
content/org/apache/tika/buildcache/tika/tika-parsers/tika-parsers-ml/tika-parser-nlp-package/target/tika-parser-nlp-package-2.4.0.jar
{code}
So using {{export TZ=America/New_York}} this specific file is fully
reproducible.
The docker image at hand is configured to having UTC as the timezone.
My current assessment is tika has 2 problems I see right now:
# It must explicitly be reproduced under {{export TZ=America/New_York}}
# The used bundle plugin does not guarantee ordering of the Exports
Most importantly: I say this is not a maven-shade-plugin problem !
> Reproducible Builds timestamp issue in some cases
> -------------------------------------------------
>
> Key: MSHADE-420
> URL: https://issues.apache.org/jira/browse/MSHADE-420
> Project: Maven Shade Plugin
> Issue Type: Bug
> Affects Versions: 3.2.4
> Reporter: Herve Boutemy
> Priority: Major
>
> seen in Tika
> https://github.com/jvm-repo-rebuild/reproducible-central/blob/master/content/org/apache/tika/tika-2.4.0.diffoscope
> maven-shade-plugin 3.2.4 has an issue with timestamps in unexplained
> circumstances:
> why does 21-Nov-20 20:25 from reference become 21-Nov-21 01:25 in rebuild?
> why does 20-May-14 07:15 from reference become 20-May-14 11:15 in rebuild?
> could be related to the timezone of the rebuilder?
> {noformat}
> 21 / 44 target/reference/tika-parser-nlp-package-2.4.0.jar
> tika-parsers/tika-parsers-ml/tika-parser-nlp-package/target/tika-parser-nlp-package-2.4.0.jar
> --- target/reference/tika-parser-nlp-package-2.4.0.jar
> +++
> tika-parsers/tika-parsers-ml/tika-parser-nlp-package/target/tika-parser-nlp-package-2.4.0.jar
> ├── zipinfo {}
> │ @@ -9868,1231 +9868,1231 @@
> │ -rw---- 2.0 fat 2653 bl defN 22-Apr-08 17:41
> schemas/wsdl/ws-addr-wsdl.xsd
> │ -rw---- 2.0 fat 5591 bl defN 22-Apr-08 17:41
> schemas/wsdl/ws-addr.xsd
> │ -rw---- 2.0 fat 1606 bl defN 22-Apr-08 17:41 schemas/wsdl/wsdl.xjb
> │ -rw---- 2.0 fat 12126 bl defN 22-Apr-08 17:41 schemas/wsdl/wsdl.xsd
> │ -rw---- 2.0 fat 8198 bl defN 22-Apr-08 17:41 schemas/wsdl/wsrm.xsd
> │ -rw---- 2.0 fat 932 bl defN 22-Apr-08 17:41 schemas/wsdl/xmime.xsd
> │ -rw---- 2.0 fat 5840 bl defN 22-Apr-08 17:41 schemas/wsdl/xml.xsd
> │ --rw---- 2.0 fat 0 bl defN 21-Nov-20 20:25
> META-INF/maven/com.fasterxml.woodstox/
> │ --rw---- 2.0 fat 0 bl defN 21-Nov-20 20:25
> META-INF/maven/com.fasterxml.woodstox/woodstox-core/
> │ --rw---- 2.0 fat 70 bl defN 21-Nov-20 20:25
> META-INF/maven/com.fasterxml.woodstox/woodstox-core/pom.properties
> │ --rw---- 2.0 fat 15917 bl defN 21-Nov-20 20:25
> META-INF/maven/com.fasterxml.woodstox/woodstox-core/pom.xml
> │ --rw---- 2.0 fat 0 bl defN 21-Nov-20 20:25 com/ctc/
> │ --rw---- 2.0 fat 0 bl defN 21-Nov-20 20:25 com/ctc/wstx/
> │ --rw---- 2.0 fat 0 bl defN 21-Nov-20 20:25 com/ctc/wstx/api/
> ...
> │ --rw---- 2.0 fat 722 bl defN 20-May-14 07:15
> org/codehaus/stax2/validation/XMLValidationSchema.class
> │ --rw---- 2.0 fat 7795 bl defN 20-May-14 07:15
> org/codehaus/stax2/validation/XMLValidationSchemaFactory.class
> │ --rw---- 2.0 fat 1801 bl defN 20-May-14 07:15
> org/codehaus/stax2/validation/XMLValidator.class
> │ +-rw---- 2.0 fat 0 bl defN 21-Nov-21 01:25
> META-INF/maven/com.fasterxml.woodstox/
> │ +-rw---- 2.0 fat 0 bl defN 21-Nov-21 01:25
> META-INF/maven/com.fasterxml.woodstox/woodstox-core/
> │ +-rw---- 2.0 fat 70 bl defN 21-Nov-21 01:25
> META-INF/maven/com.fasterxml.woodstox/woodstox-core/pom.properties
> │ +-rw---- 2.0 fat 15917 bl defN 21-Nov-21 01:25
> META-INF/maven/com.fasterxml.woodstox/woodstox-core/pom.xml
> │ +-rw---- 2.0 fat 0 bl defN 21-Nov-21 01:25 com/ctc/
> │ +-rw---- 2.0 fat 0 bl defN 21-Nov-21 01:25 com/ctc/wstx/
> │ +-rw---- 2.0 fat 0 bl defN 21-Nov-21 01:25 com/ctc/wstx/api/
> ...
> │ +-rw---- 2.0 fat 722 bl defN 20-May-14 11:15
> org/codehaus/stax2/validation/XMLValidationSchema.class
> │ +-rw---- 2.0 fat 7795 bl defN 20-May-14 11:15
> org/codehaus/stax2/validation/XMLValidationSchemaFactory.class
> │ +-rw---- 2.0 fat 1801 bl defN 20-May-14 11:15
> org/codehaus/stax2/validation/XMLValidator.class
> │ -rw---- 2.0 fat 0 bl defN 21-Sep-14 14:41
> META-INF/maven/org.apache.ws.xmlschema/
> │ -rw---- 2.0 fat 0 bl defN 21-Sep-14 14:41
> META-INF/maven/org.apache.ws.xmlschema/xmlschema-core/
> │ -rw---- 2.0 fat 146 bl defN 21-Sep-14 14:41
> META-INF/maven/org.apache.ws.xmlschema/xmlschema-core/pom.properties
> │ -rw---- 2.0 fat 6857 bl defN 21-Sep-14 14:41
> META-INF/maven/org.apache.ws.xmlschema/xmlschema-core/pom.xml
> │ -rw---- 2.0 fat 0 bl defN 21-Sep-14 14:41 org/apache/ws/
> │ -rw---- 2.0 fat 0 bl defN 21-Sep-14 14:41 org/apache/ws/commons/
> │ -rw---- 2.0 fat 0 bl defN 21-Sep-14 14:41
> org/apache/ws/commons/schema/
> {noformat}
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