HiveConf static initialization fails when the jar URI is opaque, for example when it's embedded as a fat jar in a spring boot application. Then initialization of the HiveConf static block fails and the HiveConf class does not get classloaded. The opaque URI in my case looks like this _jar:file:/usr/local/server/some-service-jar.jar!/BOOT-INF/lib/hive-common-2.3.7.jar!/_
HiveConf#findConfigFile should be able to handle `IllegalArgumentException` when the jar `URI` provided to `File` throws the exception.
To surface this issue three conditions need to be met.
1. hive-site.xml should not be on the classpath
2. hive-site.xml should not be on "HIVE_CONF_DIR"
3. hive-site.xml should not be on "HIVE_HOME"