druid中hsql驱动问题

fine-druid/src/com/fr/third/alibaba/druid/util/JdbcUtils.java

@@ -407,6 +407,13 @@ public final class JdbcUtils implements JdbcConstants {
             } catch (Throwable ignore) {
                 return "org.hsqldb.jdbcDriver";
             }
+        } else if (rawUrl.startsWith("emb:jdbc:hsqldb:")) {
+            try {
+                Class.forName("com.fr.third.org.hsqldb.jdbcDriver");
+                return "com.fr.third.org.hsqldb.jdbcDriver";
+            } catch (Throwable ignore) {
+                return "org.hsqldb.jdbcDriver";
+            }
         } else if (rawUrl.startsWith("jdbc:db2:")) {
             return DB2_DRIVER;
         } else if (rawUrl.startsWith("jdbc:sqlite:")) {