[Bugfix][Connector-v2] fix file sink isPartitionFieldWriteInFile oc…

…curred exception when no columns are give for the sink

seatunnel-connectors-v2/connector-file/connector-file-base/src/main/java/org/apache/seatunnel/connectors/seatunnel/file/sink/config/FileSinkConfig.java

@@ -32,6 +32,7 @@
 import lombok.Data;
 import lombok.NonNull;
 
+import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.HashMap;
@@ -83,7 +84,8 @@ public FileSinkConfig(@NonNull Config config, @NonNull SeaTunnelRowType seaTunne
 
         // if the config sink_columns is empty, all fields in SeaTunnelRowTypeInfo will being write
         if (CollectionUtils.isEmpty(this.sinkColumnList)) {
-            this.sinkColumnList = Arrays.asList(seaTunnelRowTypeInfo.getFieldNames());
+            this.sinkColumnList =
+                    new ArrayList<>(Arrays.asList(seaTunnelRowTypeInfo.getFieldNames()));
         }
 
         if (config.hasPath(BaseSinkConfig.PARTITION_BY.key())) {

seatunnel-connectors-v2/connector-file/connector-file-base/src/test/java/org/apache/seatunnel/connectors/seatunnel/file/writer/FileSinkConfigTest.java

@@ -0,0 +1,50 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.seatunnel.connectors.seatunnel.file.writer;
+
+import org.apache.seatunnel.shade.com.typesafe.config.Config;
+import org.apache.seatunnel.shade.com.typesafe.config.ConfigFactory;
+
+import org.apache.seatunnel.api.table.type.BasicType;
+import org.apache.seatunnel.api.table.type.SeaTunnelDataType;
+import org.apache.seatunnel.api.table.type.SeaTunnelRowType;
+import org.apache.seatunnel.connectors.seatunnel.file.sink.config.FileSinkConfig;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+import java.io.File;
+import java.net.URL;
+import java.nio.file.Paths;
+
+public class FileSinkConfigTest {
+
+    @Test
+    public void testConfigInit() throws Exception {
+        URL conf = OrcReadStrategyTest.class.getResource("/test_write_hdfs.conf");
+        Assertions.assertNotNull(conf);
+        String confPath = Paths.get(conf.toURI()).toString();
+        Config config = ConfigFactory.parseFile(new File(confPath));
+
+        SeaTunnelRowType rowType =
+                new SeaTunnelRowType(
+                        new String[] {"data", "ts"},
+                        new SeaTunnelDataType[] {BasicType.STRING_TYPE, BasicType.STRING_TYPE});
+        Assertions.assertDoesNotThrow(() -> new FileSinkConfig(config, rowType));
+    }
+}

seatunnel-connectors-v2/connector-file/connector-file-base/src/test/resources/test_write_hdfs.conf

@@ -0,0 +1,11 @@
+{
+      fs.defaultFS = "hdfs://hadoop01:9000"
+      have_partition = true
+      partition_by = ["ts"]
+      partition_dir_expression = "${v0}"
+      is_partition_field_write_in_file = false
+      path = "/data/test"
+      file_format_type = "json"
+      batch_size=10
+}
+