Diff of the two buildlogs:

--
--- b1/build.log	2023-04-09 13:07:35.369906151 +0000
+++ b2/build.log	2023-04-09 13:11:31.129998438 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Sat May 11 07:27:53 -12 2024
-I: pbuilder-time-stamp: 1715455673
+I: Current time: Mon Apr 10 03:07:39 +14 2023
+I: pbuilder-time-stamp: 1681045659
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/bookworm-reproducible-base.tgz]
 I: copying local configuration
@@ -16,7 +16,7 @@
 I: copying [./geronimo-jacc-1.1-spec_1.0.3.orig.tar.xz]
 I: copying [./geronimo-jacc-1.1-spec_1.0.3-1.debian.tar.xz]
 I: Extracting source
-gpgv: Signature made Thu Jan 21 03:19:56 2021 -12
+gpgv: Signature made Fri Jan 22 05:19:56 2021 +14
 gpgv:                using RSA key B8CE4DE21080DCF903E16C40F513C419E4B9D0AC
 gpgv:                issuer "ebourg@apache.org"
 gpgv: Can't check signature: No public key
@@ -29,11 +29,20 @@
 dpkg-source: info: applying 02-servlet-3.1-compatibility.patch
 I: using fakeroot in build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/13514/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/1053/tmp/hooks/D01_modify_environment starting
+debug: Running on codethink16-arm64.
+I: Changing host+domainname to test build reproducibility
+I: Adding a custom variable just for the fun of it...
+I: Changing /bin/sh to bash
+lrwxrwxrwx 1 root root 4 Jan  6 03:20 /bin/sh -> dash
+I: Setting pbuilder2's login shell to /bin/bash
+I: Setting pbuilder2's GECOS to second user,second room,second work-phone,second home-phone,second other
+I: user script /srv/workspace/pbuilder/1053/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/1053/tmp/hooks/D02_print_environment starting
 I: set
   BUILDDIR='/build'
-  BUILDUSERGECOS='first user,first room,first work-phone,first home-phone,first other'
-  BUILDUSERNAME='pbuilder1'
+  BUILDUSERGECOS='second user,second room,second work-phone,second home-phone,second other'
+  BUILDUSERNAME='pbuilder2'
   BUILD_ARCH='arm64'
   DEBIAN_FRONTEND='noninteractive'
   DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=8'
@@ -43,38 +52,38 @@
   IFS=' 	
   '
   LANG='C'
-  LANGUAGE='en_US:en'
+  LANGUAGE='nl_BE:nl'
   LC_ALL='C'
   MAIL='/var/mail/root'
   OPTIND='1'
-  PATH='/usr/sbin:/usr/bin:/sbin:/bin:/usr/games'
+  PATH='/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/i/capture/the/path'
   PBCURRENTCOMMANDLINEOPERATION='build'
   PBUILDER_OPERATION='build'
   PBUILDER_PKGDATADIR='/usr/share/pbuilder'
   PBUILDER_PKGLIBDIR='/usr/lib/pbuilder'
   PBUILDER_SYSCONFDIR='/etc'
-  PPID='13514'
+  PPID='1053'
   PS1='# '
   PS2='> '
   PS4='+ '
   PWD='/'
   SHELL='/bin/bash'
   SHLVL='2'
-  SUDO_COMMAND='/usr/bin/timeout -k 18.1h 18h /usr/bin/ionice -c 3 /usr/bin/nice /usr/sbin/pbuilder --build --configfile /srv/reproducible-results/rbuild-debian/r-b-build.FBiGJvxy/pbuilderrc_nIBg --distribution bookworm --hookdir /etc/pbuilder/first-build-hooks --debbuildopts -b --basetgz /var/cache/pbuilder/bookworm-reproducible-base.tgz --buildresult /srv/reproducible-results/rbuild-debian/r-b-build.FBiGJvxy/b1 --logfile b1/build.log geronimo-jacc-1.1-spec_1.0.3-1.dsc'
+  SUDO_COMMAND='/usr/bin/timeout -k 24.1h 24h /usr/bin/ionice -c 3 /usr/bin/nice -n 11 /usr/bin/unshare --uts -- /usr/sbin/pbuilder --build --configfile /srv/reproducible-results/rbuild-debian/r-b-build.FBiGJvxy/pbuilderrc_zptB --distribution bookworm --hookdir /etc/pbuilder/rebuild-hooks --debbuildopts -b --basetgz /var/cache/pbuilder/bookworm-reproducible-base.tgz --buildresult /srv/reproducible-results/rbuild-debian/r-b-build.FBiGJvxy/b2 --logfile b2/build.log --extrapackages usrmerge geronimo-jacc-1.1-spec_1.0.3-1.dsc'
   SUDO_GID='117'
   SUDO_UID='110'
   SUDO_USER='jenkins'
   TERM='unknown'
-  TZ='/usr/share/zoneinfo/Etc/GMT+12'
+  TZ='/usr/share/zoneinfo/Etc/GMT-14'
   USER='root'
   USERNAME='root'
   _='/usr/bin/systemd-run'
   http_proxy='http://192.168.101.16:3128'
 I: uname -a
-  Linux codethink11-arm64 4.15.0-208-generic #220-Ubuntu SMP Mon Mar 20 14:28:12 UTC 2023 aarch64 GNU/Linux
+  Linux i-capture-the-hostname 4.15.0-208-generic #220-Ubuntu SMP Mon Mar 20 14:28:12 UTC 2023 aarch64 GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 May  9 04:48 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/13514/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Apr  9 00:25 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/1053/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -400,7 +409,7 @@
 Get: 276 http://deb.debian.org/debian bookworm/main arm64 maven all 3.8.7-1 [18.9 kB]
 Get: 277 http://deb.debian.org/debian bookworm/main arm64 maven-repo-helper all 1.11 [142 kB]
 Get: 278 http://deb.debian.org/debian bookworm/main arm64 maven-debian-helper all 2.6.2 [108 kB]
-Fetched 413 MB in 47s (8825 kB/s)
+Fetched 413 MB in 30s (13.8 MB/s)
 debconf: delaying package configuration, since apt-utils is not installed
 Selecting previously unselected package sgml-base.
 (Reading database ... 
(Reading database ... 5%
(Reading database ... 10%
(Reading database ... 15%
(Reading database ... 20%
(Reading database ... 25%
(Reading database ... 30%
(Reading database ... 35%
(Reading database ... 40%
(Reading database ... 45%
(Reading database ... 50%
(Reading database ... 55%
(Reading database ... 60%
(Reading database ... 65%
(Reading database ... 70%
(Reading database ... 75%
(Reading database ... 80%
(Reading database ... 85%
(Reading database ... 90%
(Reading database ... 95%
(Reading database ... 100%
(Reading database ... 19616 files and directories currently installed.)
@@ -1715,10 +1724,15 @@
 Reading package lists...
 Building dependency tree...
 Reading state information...
+usrmerge is already the newest version (35).
 fakeroot is already the newest version (1.31-1.2).
 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
 I: Building the package
-I: Running cd /build/geronimo-jacc-1.1-spec-1.0.3/ && env PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games" HOME="/nonexistent/first-build" dpkg-buildpackage -us -uc -b && env PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games" HOME="/nonexistent/first-build" dpkg-genchanges -S  > ../geronimo-jacc-1.1-spec_1.0.3-1_source.changes
+I: user script /srv/workspace/pbuilder/1053/tmp/hooks/A99_set_merged_usr starting
+Re-configuring usrmerge...
+I: user script /srv/workspace/pbuilder/1053/tmp/hooks/A99_set_merged_usr finished
+hostname: Temporary failure in name resolution
+I: Running cd /build/geronimo-jacc-1.1-spec-1.0.3/ && env PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/i/capture/the/path" HOME="/nonexistent/second-build" dpkg-buildpackage -us -uc -b && env PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/i/capture/the/path" HOME="/nonexistent/second-build" dpkg-genchanges -S  > ../geronimo-jacc-1.1-spec_1.0.3-1_source.changes
 dpkg-buildpackage: info: source package geronimo-jacc-1.1-spec
 dpkg-buildpackage: info: source version 1.0.3-1
 dpkg-buildpackage: info: source distribution unstable
@@ -1790,8 +1804,8 @@
 [INFO] ------------------------------------------------------------------------
 [INFO] BUILD SUCCESS
 [INFO] ------------------------------------------------------------------------
-[INFO] Total time:  11.541 s
-[INFO] Finished at: 2024-05-11T07:30:02-12:00
+[INFO] Total time:  21.732 s
+[INFO] Finished at: 2023-04-10T03:10:34+14:00
 [INFO] ------------------------------------------------------------------------
    dh_auto_test
 	/usr/lib/jvm/default-java/bin/java -noverify -cp /usr/share/maven/boot/plexus-classworlds-2.x.jar -Dmaven.home=/usr/share/maven -Dmaven.multiModuleProjectDirectory=/build/geronimo-jacc-1.1-spec-1.0.3 -Dclassworlds.conf=/etc/maven/m2-debian.conf -Dproperties.file.manual=/build/geronimo-jacc-1.1-spec-1.0.3/debian/maven.properties org.codehaus.plexus.classworlds.launcher.Launcher -s/etc/maven/settings-debian.xml -Ddebian.dir=/build/geronimo-jacc-1.1-spec-1.0.3/debian -Dmaven.repo.local=/build/geronimo-jacc-1.1-spec-1.0.3/debian/maven-repo --batch-mode test
@@ -1833,19 +1847,19 @@
 [INFO]  T E S T S
 [INFO] -------------------------------------------------------
 [INFO] Running javax.security.jacc.HTTPMethodSpecTest
-[INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.011 s - in javax.security.jacc.HTTPMethodSpecTest
+[INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.054 s - in javax.security.jacc.HTTPMethodSpecTest
 [INFO] Running javax.security.jacc.WebRoleRefPermissionTest
-[INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0 s - in javax.security.jacc.WebRoleRefPermissionTest
+[INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.001 s - in javax.security.jacc.WebRoleRefPermissionTest
 [INFO] Running javax.security.jacc.EJBMethodPermissionTest
-[INFO] Tests run: 6, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.082 s - in javax.security.jacc.EJBMethodPermissionTest
+[INFO] Tests run: 6, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.162 s - in javax.security.jacc.EJBMethodPermissionTest
 [INFO] Running javax.security.jacc.WebResourcePermissionTest
-[INFO] Tests run: 10, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.023 s - in javax.security.jacc.WebResourcePermissionTest
+[INFO] Tests run: 10, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.057 s - in javax.security.jacc.WebResourcePermissionTest
 [INFO] Running javax.security.jacc.WebUserDataPermissionTest
-[INFO] Tests run: 7, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.009 s - in javax.security.jacc.WebUserDataPermissionTest
+[INFO] Tests run: 7, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.047 s - in javax.security.jacc.WebUserDataPermissionTest
 [INFO] Running javax.security.jacc.EJBRoleRefPermissionTest
-[INFO] Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0 s - in javax.security.jacc.EJBRoleRefPermissionTest
+[INFO] Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.001 s - in javax.security.jacc.EJBRoleRefPermissionTest
 [INFO] Running javax.security.jacc.EJBMethodPermissionCollectionTest
-[INFO] Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0 s - in javax.security.jacc.EJBMethodPermissionCollectionTest
+[INFO] Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.037 s - in javax.security.jacc.EJBMethodPermissionCollectionTest
 [INFO] 
 [INFO] Results:
 [INFO] 
@@ -1854,8 +1868,8 @@
 [INFO] ------------------------------------------------------------------------
 [INFO] BUILD SUCCESS
 [INFO] ------------------------------------------------------------------------
-[INFO] Total time:  13.435 s
-[INFO] Finished at: 2024-05-11T07:30:19-12:00
+[INFO] Total time:  17.490 s
+[INFO] Finished at: 2023-04-10T03:10:57+14:00
 [INFO] ------------------------------------------------------------------------
    create-stamp debian/debhelper-build-stamp
  fakeroot debian/rules binary
@@ -1895,8 +1909,8 @@
 [INFO] ------------------------------------------------------------------------
 [INFO] BUILD SUCCESS
 [INFO] ------------------------------------------------------------------------
-[INFO] Total time:  2.506 s
-[INFO] Finished at: 2024-05-11T07:30:24-12:00
+[INFO] Total time:  6.052 s
+[INFO] Finished at: 2023-04-10T03:11:11+14:00
 [INFO] ------------------------------------------------------------------------
 	mh_resolve_dependencies --non-interactive --offline --build -plibgeronimo-jacc-1.1-spec-java --base-directory=/build/geronimo-jacc-1.1-spec-1.0.3 --non-explore
 Analysing pom.xml...
@@ -1922,12 +1936,14 @@
 dpkg-buildpackage: info: binary-only upload (no source included)
 dpkg-genchanges: info: including full source code in upload
 I: copying local configuration
+I: user script /srv/workspace/pbuilder/1053/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/1053/tmp/hooks/B01_cleanup finished
 I: unmounting dev/ptmx filesystem
 I: unmounting dev/pts filesystem
 I: unmounting dev/shm filesystem
 I: unmounting proc filesystem
 I: unmounting sys filesystem
 I: cleaning the build env 
-I: removing directory /srv/workspace/pbuilder/13514 and its subdirectories
-I: Current time: Sat May 11 07:30:34 -12 2024
-I: pbuilder-time-stamp: 1715455834
+I: removing directory /srv/workspace/pbuilder/1053 and its subdirectories
+I: Current time: Mon Apr 10 03:11:30 +14 2023
+I: pbuilder-time-stamp: 1681045890