HHH-12901 Enable loading of additional JDBC drivers from a local path, rename the Oracle dependency

build.gradle

@@ -40,6 +40,13 @@ allprojects {
 			name "jboss-snapshots"
 			url "http://snapshots.jboss.org/maven2/"
 		}
+		//Allow loading additional dependencis from a local path;
+		//useful to load JDBC drivers which can not be distributed in public.
+		if (System.env['ADDITIONAL_REPO'] != null) {
+			flatDir {
+				dirs "${System.env.ADDITIONAL_REPO}"
+			}
+		}
 	}
 	apply plugin: 'idea'
 

databases/oracle/matrix.gradle

@@ -4,4 +4,6 @@
  * License: GNU Lesser General Public License (LGPL), version 2.1 or later.
  * See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
  */
-jdbcDependency 'com.oracle.ojdbc:ojdbc7:12.1.0.2.0'
+// Expected to match the jar name: drop a copy of ojdbc8.jar in a local directory,
+// then point the environment variable ADDITIONAL_REPO to that directory.
+jdbcDependency name : 'ojdbc8'