Corrected failing ubuntu tests

 - java.lang.AbstractMethodError: org.hsqldb.jdbc.jdbcConnection.isValid(I)Z
 - moved definition of connection test query to common method for unit tests

Author: chrjohn

quickfixj-core/src/test/java/quickfix/JdbcLogTest.java

@@ -133,7 +133,6 @@ private void setUpJdbcLog(boolean filterHeartbeats, DataSource dataSource) throw
         if (filterHeartbeats) {
             settings.setBool(JdbcSetting.SETTING_JDBC_LOG_HEARTBEATS, false);
         }
-        settings.setString(sessionID, JdbcSetting.SETTING_JDBC_CONNECTION_TEST_QUERY, "SELECT COUNT(1) FROM INFORMATION_SCHEMA.SYSTEM_USERS WHERE 1 = 0;");
         JdbcTestSupport.setHypersonicSettings(settings);
         initializeTableDefinitions(connection);
         logFactory = new JdbcLogFactory(settings);

quickfixj-core/src/test/java/quickfix/JdbcTestSupport.java

@@ -43,6 +43,8 @@ public static void setHypersonicSettings(SessionSettings settings) {
         settings.setString(JdbcSetting.SETTING_JDBC_CONNECTION_URL, HSQL_CONNECTION_URL);
         settings.setString(JdbcSetting.SETTING_JDBC_USER, HSQL_USER);
         settings.setString(JdbcSetting.SETTING_JDBC_PASSWORD, "");
+        // HSQL doesn't support JDBC4 which means that test query has to be supplied to HikariCP
+        settings.setString(JdbcSetting.SETTING_JDBC_CONNECTION_TEST_QUERY, "SELECT COUNT(1) FROM INFORMATION_SCHEMA.SYSTEM_USERS WHERE 1 = 0;");
     }
 
     public static Connection getConnection() throws ClassNotFoundException, SQLException {