Makes it simpler to build with one JDK and run tests with another.
TEST_JDK_VERSION sets IMPALA_JDK_VERSION before running tests, so the
Impala cluster is started with that JDK. TEST_JAVA_HOME_OVERRIDE sets
IMPALA_JAVA_HOME_OVERRIDE if a non-OS version of Java is required.
Restart Kudu with original JAVA_HOME in frontend tests.
Also skips restarting Hive, Kudu, and Ranger in tests as they'll restart
with a different JDK than originally started with.
Testing:
1. built normally
2. ran "TEST_JDK_VERSION=17 run-all-tests.sh"
3. verified various logs contain "java.specification.version:17"
Change-Id: I46b5515efd9537d63b843dbc42aa93b376efce00
Reviewed-on: http://gerrit.cloudera.org:8080/20143
Reviewed-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>
Tested-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>