getPreNoticeList(..) 결과가 null일 때 오류 수정

src/main/java/cokr/xit/interfaces/sntris/service/bean/SntrisBean.java

@@ -1,6 +1,7 @@
 package cokr.xit.interfaces.sntris.service.bean;
 
 import java.io.InputStream;
+import java.util.Collections;
 import java.util.Date;
 import java.util.List;
 import java.util.Map;
@@ -116,7 +117,8 @@ public class SntrisBean extends AbstractBean {
 
 	public List<Ye22NoticeInfoDTO> getPreNoticeList(Ye22InputDTO input) {
 		try {
-			return List.of(fileOfferWS.webGwaseInfo007(input));
+			Ye22NoticeInfoDTO[] result = fileOfferWS.webGwaseInfo007(input);
+			return !isEmpty(result) ? List.of(fileOfferWS.webGwaseInfo007(input)) : Collections.emptyList();
 		} catch (Exception e) {
 			throw runtimeException(e);
 		}