修复pmd错误

designer_base/src/com/fr/design/editor/editor/ColumnSelectedEditor.java

@@ -36,13 +36,13 @@ public class ColumnSelectedEditor extends Editor<SimpleDSColumn> {
 
 			@Override
 			public void itemStateChanged(ItemEvent e) {
-				TableDataWrapper tableDataWrapper = tableDataComboBox.getSelectedItem();
-				if (tableDataWrapper == null) {
-					return;
-				}
-				//这边需要重新初始化columnNames, 否则nameList长度和columnNames长度不同导致出錯。
-				List<String> nameList = tableDataComboBox.getSelectedItem().calculateColumnNameList();
-				columnNames = new String[nameList.size()];
+                TableDataWrapper tableDataWrapper = tableDataComboBox.getSelectedItem();
+                if (tableDataWrapper == null) {
+                    return;
+                }
+                //这边需要重新初始化columnNames, 否则nameList长度和columnNames长度不同导致出錯。
+                List<String> nameList = tableDataWrapper.calculateColumnNameList();
+                columnNames = new String[nameList.size()];
 				columnNames = tableDataComboBox.getSelectedItem().calculateColumnNameList().toArray(columnNames);
 				columnNameComboBox.removeAllItems();
 				for (int i = 0; i < columnNames.length; i++) {