WIP JDK 19

[risdenk]

https://issues.apache.org/jira/browse/SOLR-XXXXX

[HoustonPutman]

Why JDK19/20 over JDK 17?

[risdenk]

Mostly just testing it out to see if it works. I know there are some float issues with JDK 19 and errorprone - https://issues.apache.org/jira/browse/SOLR-16431 you can see it in the test above:

> Task :solr:core:forbiddenApisMain
/home/runner/work/solr/solr/solr/core/src/test/org/apache/solr/legacy/TestLegacyNumericUtils.java:269: warning: [FloatingPointLiteralPrecision] Floating point literal loses precision

          -9.9999999E+14f,
           ^
    (see https://errorprone.info/bugpattern/FloatingPointLiteralPrecision)
  Did you mean '-1.0E+15f,'?
/home/runner/work/solr/solr/solr/core/src/test/org/apache/solr/legacy/TestLegacyNumericUtils.java:278: warning: [FloatingPointLiteralPrecision] Floating point literal loses precision
          9.9999999E+14f,
          ^
    (see https://errorprone.info/bugpattern/FloatingPointLiteralPrecision)
  Did you mean '1.0E+15f,'?
error: warnings found and -Werror specified

so not excluding JDK 17 by any means was just curious

[risdenk]

Closing since main is on jdk 21 now