add testcase for issue #715

core/src/test/java/com/alibaba/fastjson2/issues/Issue715.java

@@ -0,0 +1,63 @@
+package com.alibaba.fastjson2.issues;
+
+import com.alibaba.fastjson2.JSONB;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+public class Issue715 {
+    @Test
+    public void test() {
+        Student student = new Student("bin", 12, "湖北");
+        byte[] bytes = JSONB.toBytes(student);
+        Student student2 = JSONB.parseObject(bytes, Student.class);
+        assertEquals(student.address, student2.address);
+        assertEquals(student.sge, student2.sge);
+        assertEquals(student.address, student2.address);
+    }
+
+    public class Student {
+        private String name;
+        private int sge;
+        private String address;
+
+        public Student(String name, int sge, String address) {
+            this.name = name;
+            this.sge = sge;
+            this.address = address;
+        }
+
+        public String getName() {
+            return name;
+        }
+
+        public void setName(String name) {
+            this.name = name;
+        }
+
+        public int getSge() {
+            return sge;
+        }
+
+        public void setSge(int sge) {
+            this.sge = sge;
+        }
+
+        public String getAddress() {
+            return address;
+        }
+
+        public void setAddress(String address) {
+            this.address = address;
+        }
+
+        @Override
+        public String toString() {
+            return "Student{" +
+                    "name='" + name + '\'' +
+                    ", sge=" + sge +
+                    ", address='" + address + '\'' +
+                    '}';
+        }
+    }
+}