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https://issues.apache.org/jira/browse/MSHADE-420?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17696476#comment-17696476
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Herve Boutemy commented on MSHADE-420:
--------------------------------------
digging into the case: it seems the issue comes from entries that are stored in
original jar file not with basic xdostime but with mtime from extra field data:
shade plugin gets the extra field then stores as xdostime, where the timezone
shift is added...
it seems we'll need to reuse original ZipEntry to benefit from its full
configuration instead of creating a new ZipEntry where we explicitely set the
time...
> 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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