While working on reproducible builds for openSUSE, I found that
our java-20-openjdk package fails to compile in 2034

to reproduce:
osc co openSUSE:Factory/java-20-openjdk && cd $_
osc build --clean --noservice -j1 --vm-type=kvm \
 --build-opt=--vm-custom-opt="-rtc base=2034-02-02T00:00:00" \
 standard x86_64


[  284s] /usr/lib64/jvm/java/bin/java -XX:+UseSerialGC -Xms32M -Xmx512M -XX:TieredStopAtLevel=1 -Duser.language=en -Duser.country=US  -XX:+UnlockDiagnosticVMOptions -XX:-VerifySharedSpaces -XX:SharedArchiveFile=/home/abuild/rpmbuild/BUILD/jdk20u-jdk-20.0.1-9/build/configure-support/classes.jsa -Xshare:auto  -cp /home/abuild/rpmbuild/BUILD/jdk20u-jdk-20.0.1-9/build/buildtools/jdk_tools_classes build.tools.generatecharacter.CharacterName /home/abuild/rpmbuild/BUILD/jdk20u-jdk-20.0.1-9/src/java.base/share/data/unicodedata/UnicodeData.txt /home/abuild/rpmbuild/BUILD/jdk20u-jdk-20.0.1-9/build/jdk/modules/java.base/java/lang/uniName.dat
[  284s] /usr/bin/rm -f /home/abuild/rpmbuild/BUILD/jdk20u-jdk-20.0.1-9/build/jdk/modules/java.base/java/util/currency.data
[  284s] /usr/lib64/jvm/java/bin/java -XX:+UseSerialGC -Xms32M -Xmx512M -XX:TieredStopAtLevel=1 -Duser.language=en -Duser.country=US  -XX:+UnlockDiagnosticVMOptions -XX:-VerifySharedSpaces -XX:SharedArchiveFile=/home/abuild/rpmbuild/BUILD/jdk20u-jdk-20.0.1-9/build/configure-support/classes.jsa -Xshare:auto  -cp /home/abuild/rpmbuild/BUILD/jdk20u-jdk-20.0.1-9/build/buildtools/jdk_tools_classes build.tools.generatecurrencydata.GenerateCurrencyData -o /home/abuild/rpmbuild/BUILD/jdk20u-jdk-20.0.1-9/build/jdk/modules/java.base/java/util/currency.data.tmp -i /home/abuild/rpmbuild/BUILD/jdk20u-jdk-20.0.1-9/src/java.base/share/data/currency/CurrencyData.properties
[  285s] Error: time is more than 10 years from present: 1672527600000
[  285s] java.lang.RuntimeException: time is more than 10 years from present: 1672527600000
[  285s]        at build.tools.generatecurrencydata.GenerateCurrencyData.makeSpecialCaseEntry(GenerateCurrencyData.java:315)
[  285s]        at build.tools.generatecurrencydata.GenerateCurrencyData.buildMainAndSpecialCaseTables(GenerateCurrencyData.java:254)
[  285s]        at build.tools.generatecurrencydata.GenerateCurrencyData.main(GenerateCurrencyData.java:185)
[  285s] gmake[3]: *** [Gendata.gmk:55: /home/abuild/rpmbuild/BUILD/jdk20u-jdk-20.0.1-9/build/jdk/modules/java.base/java/util/currency.data] Error 1
[  285s] gmake[2]: *** [make/Main.gmk:147: java.base-gendata] Error 2