fixed tests

Author: chernser

client-v2/src/test/java/com/clickhouse/client/ProxyTests.java

@@ -135,7 +135,9 @@ public void testProxyWithCookies() {
             return; // to specific setup for cloud, may be later
         }
 
-        client.set(clientBuilder(initProxy(), true).build());
+        client.set(clientBuilder(initProxy(), true)
+                .setHttpCookiesEnabled(true)
+                .build());
         final int targetPort = getServer(ClickHouseProtocol.HTTP).getPort();
 
         proxy.get().addStubMapping(post(urlMatching("/.*"))

jdbc-v2/src/test/java/com/clickhouse/jdbc/DataTypeTests.java

@@ -1071,9 +1071,11 @@ public void testJSONWritingAsString() throws SQLException {
             return; // JSON was introduced in 24.10
         }
 
+        Properties createProperties = new Properties();
+        createProperties.put(ClientConfigProperties.serverSetting("allow_experimental_json_type"), "1");
         runQuery("CREATE TABLE test_json (order Int8, "
                 + "json JSON"
-                + ") ENGINE = MergeTree ORDER BY ()");
+                + ") ENGINE = MergeTree ORDER BY ()", createProperties);
 
         // Insert random (valid) values
         long seed = System.currentTimeMillis();