Adding issue #2245 test (#2296)

* Adding issue #2245 test

* Adding to readVersionFromResource the ability to load from a different classloader for those cases when the thread is running in a different classloader

Author: mzitnik

clickhouse-client/src/main/java/com/clickhouse/client/config/ClickHouseClientOption.java

@@ -532,7 +532,17 @@ public static String readVersionFromResource(String resourceFilePath) {
                 tmpVersion = tmp;
             }
         } catch (Exception e) {
-            // ignore
+            try(InputStream in = ClickHouseClientOption.class.getClassLoader().getResourceAsStream(resourceFilePath)) {
+                Properties p = new Properties();
+                p.load(in);
+
+                String tmp = p.getProperty("version");
+                if (tmp != null && !tmp.isEmpty() && !tmp.equals("${revision}")) {
+                    tmpVersion = tmp;
+                }
+            } catch (Exception ee) {
+                // ignore
+            }
         }
         return tmpVersion;
     }

jdbc-v2/src/test/java/com/clickhouse/jdbc/metadata/DatabaseMetaDataTest.java

@@ -24,11 +24,7 @@
 import java.util.Properties;
 import java.util.Set;
 
-import static org.testng.Assert.assertEquals;
-import static org.testng.Assert.assertFalse;
-import static org.testng.Assert.assertNull;
-import static org.testng.Assert.assertTrue;
-
+import static org.testng.Assert.*;
 
 
 public class DatabaseMetaDataTest extends JdbcIntegrationTest {
@@ -315,4 +311,13 @@ public void testGetClientInfoProperties() throws Exception {
             }
         }
     }
+
+    @Test(groups = { "integration" })
+    public void testGetDriverVersion() throws Exception {
+        try (Connection conn = getJdbcConnection()) {
+            DatabaseMetaData dbmd = conn.getMetaData();
+            String version = dbmd.getDriverVersion();
+            assertNotEquals(version, "unknown");
+        }
+    }
 }