fix boolean field annotation not work, for issue #2795

Author: wenshao

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

@@ -1339,6 +1339,8 @@ public static Field getField(Class objectClass, Method method) {
                     } else if (fieldName.regionMatches(0, methodName, prefix, fieldNameLength)) {
                         fields[1] = field;
                     }
+                } else if (boolean.class == field.getType() && methodName.equals(fieldName)) {
+                    fields[0] = field;
                 }
             });
         }

core/src/test/java/com/alibaba/fastjson2/issues_2700/Issue2795.java

@@ -0,0 +1,25 @@
+package com.alibaba.fastjson2.issues_2700;
+
+import com.alibaba.fastjson.annotation.JSONField;
+import com.alibaba.fastjson2.JSONObject;
+import lombok.Builder;
+import lombok.Data;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+public class Issue2795 {
+    @Builder
+    @Data
+    public static class Student {
+        @JSONField(name = "is_judge")
+        private boolean isJudge;
+    }
+
+    @Test
+    public void testFastJson() {
+        Student student = Student.builder().isJudge(true).build();
+        System.out.println(com.alibaba.fastjson.JSON.toJSONString(student));
+        assertEquals("{\"is_judge\":true}", JSONObject.toJSONString(student));
+    }
+}