Enable Oracle integration tests.

Closes #560

pom.xml

@@ -320,6 +320,13 @@
 			<scope>test</scope>
 		</dependency>
 
+		<dependency>
+			<groupId>org.awaitility</groupId>
+			<artifactId>awaitility</artifactId>
+			<version>4.0.3</version>
+			<scope>test</scope>
+		</dependency>
+
 	</dependencies>
 
 	<build>
@@ -464,7 +471,6 @@
 		<profile>
 			<id>java11</id>
 
-			<!-- enable once oracle-r2db is available from Maven Central
 			<dependencies>
 				<dependency>
 					<groupId>com.oracle.database.r2dbc</groupId>
@@ -474,7 +480,6 @@
 				</dependency>
 			</dependencies>
 
-			-->
 		</profile>
 	</profiles>