Java 8

Author: Paultagoras

client-v2/src/main/java/com/clickhouse/client/api/internal/HttpAPIClientHelper.java

@@ -604,7 +604,7 @@ public static Map<String, String> parseUrlParameters(URL url) {
             String path = url.getPath();
             path = path.substring(path.indexOf('/') + 1);
             LOG.debug("path: {}", path);
-            if (!path.isBlank()) {
+            if (!path.trim().isEmpty()) {
                 params.put("database", path);
             } else {
                 params.put("database", "default");