toJavaObject support LocalDateTime, for issue #3091

core/src/main/java/com/alibaba/fastjson2/util/TypeUtils.java

@@ -1525,6 +1525,10 @@ public static <T> T cast(Object obj, Class<T> targetClass, ObjectReaderProvider
                     return (T) JdbcSupport.createTimestamp(millis);
                 case "java.sql.Time":
                     return (T) JdbcSupport.createTime(millis);
+                case "java.time.LocalDateTime":
+                    return (T) LocalDateTime.ofInstant(
+                            Instant.ofEpochMilli(millis),
+                            DateUtils.DEFAULT_ZONE_ID);
                 default:
                     break;
             }

core/src/test/java/com/alibaba/fastjson2/issues_3000/Issue3091.java

@@ -0,0 +1,26 @@
+package com.alibaba.fastjson2.issues_3000;
+
+import com.alibaba.fastjson2.JSONObject;
+import lombok.Data;
+import org.junit.jupiter.api.Test;
+
+import java.time.LocalDateTime;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+
+public class Issue3091 {
+    @Test
+    public void test() {
+        String json = "{\"time\":0}";
+        JSONObject jsonObject = JSONObject.parseObject(json);
+        Time2 bean = jsonObject.toJavaObject(Time2.class);
+        assertNotNull(bean.time);
+        assertEquals(1970, bean.time.getYear());
+    }
+
+    @Data
+    public static class Time2 {
+        private LocalDateTime time;
+    }
+}