refactor(studio): improve date parsing error handling

spring-ai-alibaba-studio/spring-ai-alibaba-studio-server/spring-ai-alibaba-studio-server-core/src/main/java/com/alibaba/cloud/ai/studio/core/utils/common/DateUtils.java

@@ -25,13 +25,18 @@
 import java.util.Date;
 import java.util.Locale;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 /**
  * Utility class for date and time operations.
  *
  * @since 1.0.0.3
  */
 public class DateUtils extends org.apache.commons.lang3.time.DateUtils {
 
+	private static final Logger logger = LoggerFactory.getLogger(DateUtils.class);
+
 	// Date format patterns
 	public static final String DATE_JFP_STR = "yyyyMM";
 
@@ -208,15 +213,13 @@ public static Date parseDate(Object str) {
 	 */
 	public static Date parseDateString(String time) {
 		SimpleDateFormat sdf = new SimpleDateFormat("EEE MMM dd HH:mm:ss zzz yyyy", Locale.ENGLISH);
-		Date d = new Date();
 		try {
-			d = sdf.parse(time);
+			return sdf.parse(time);
 		}
 		catch (ParseException e) {
-			// TODO Auto-generated catch block
-			e.printStackTrace();
+			logger.warn("Failed to parse date string: {}", time, e);
+			return null;
 		}
-		return d;
 	}
 
 	/**

spring-ai-alibaba-studio/spring-ai-alibaba-studio-server/spring-ai-alibaba-studio-server-core/src/test/java/com/alibaba/cloud/ai/studio/core/utils/common/DateUtilsTests.java

@@ -0,0 +1,44 @@
+/*
+ * Copyright 2025 the original author or authors.
+ *
+ * Licensed 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
+ *
+ *      https://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 com.alibaba.cloud.ai.studio.core.utils.common;
+
+import org.junit.jupiter.api.Test;
+
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.Locale;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Tests for {@link DateUtils}.
+ */
+class DateUtilsTests {
+
+	@Test
+	void parseDateStringReturnsDateWhenFormatMatches() throws Exception {
+		String time = "Wed Sep 11 12:00:00 GMT 2024";
+		Date expected = new SimpleDateFormat("EEE MMM dd HH:mm:ss zzz yyyy", Locale.ENGLISH).parse(time);
+		assertThat(DateUtils.parseDateString(time)).isEqualTo(expected);
+	}
+
+	@Test
+	void parseDateStringReturnsNullOnParseFailure() {
+		assertThat(DateUtils.parseDateString("invalid-date")).isNull();
+	}
+
+}