Investigate why jdk21u x64Linux Rebuild_Same_JDK_Reproducibility_Test_0 is not 100%

[andrew-m-leonard]

Rebuild_Same_JDK_Reproducibility_Test_0 is failing: https://trss.adoptium.net/output/test?id=66ff358cd24e1b006e7c02fc

[2024-10-03T11:38:22.543Z] Comparing jdk-21.0.5+9 with tarJDK/jdk-21.0.5+9 ... output to file: reprotest.diff
[2024-10-03T11:38:33.311Z] Files jdk-21.0.5+9/jmods/expanded_java.base.jmod/lib/classlist and tarJDK/jdk-21.0.5+9/jmods/expanded_java.base.jmod/lib/classlist differ
[2024-10-03T11:38:33.311Z] Files jdk-21.0.5+9/lib/classlist and tarJDK/jdk-21.0.5+9/lib/classlist differ
[2024-10-03T11:38:33.311Z] Files jdk-21.0.5+9/lib/server/classes.jsa and tarJDK/jdk-21.0.5+9/lib/server/classes.jsa differ
[2024-10-03T11:38:33.312Z] Files jdk-21.0.5+9/lib/server/classes_nocoops.jsa and tarJDK/jdk-21.0.5+9/lib/server/classes_nocoops.jsa differ
[2024-10-03T11:38:33.312Z] Number of differences: 4
[2024-10-03T11:38:33.312Z] ReproduciblePercent = 99.99 %

I highly suspect this is due to either:

• Test rebuild env not using Timezone UTC
• Test rebuild env does not have the same ipv6 network enablement/disablement as the original
  Q: The "diff" of classlist will show which...??