fix ErrorOnNoneSerializable error on GenericType, for issue #3499

Author: wenshao

core/src/main/java/com/alibaba/fastjson2/reader/FieldReaderObject.java

@@ -182,7 +182,9 @@ public void readFieldValueJSONB(JSONReader jsonReader, T object) {
                 jsonReader.skipValue();
                 return;
             } else if ((contextFeatures & JSONReader.Feature.ErrorOnNoneSerializable.mask) != 0) {
-                throw new JSONException("not support none-Serializable");
+                if (fieldClass != Object.class || (jsonReader.isObject() || jsonReader.isArray())) {
+                    throw new JSONException("not support none-Serializable");
+                }
             }
         }
 

core/src/test/java/com/alibaba/fastjson2/issues_3400/Issue3499.java

@@ -0,0 +1,44 @@
+package com.alibaba.fastjson2.issues_3400;
+
+import com.alibaba.fastjson2.JSONB;
+import com.alibaba.fastjson2.JSONReader;
+import com.alibaba.fastjson2.JSONWriter;
+import com.alibaba.fastjson2.filter.ContextAutoTypeBeforeHandler;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+import org.junit.jupiter.api.Test;
+
+import java.io.Serializable;
+
+public class Issue3499 {
+    @Test
+    public void test() {
+        Message<String> obj = new Message<>("Hello");
+        byte[] bytes = JSONB.toBytes(obj, JSONWriter.Feature.WriteClassName,
+                JSONWriter.Feature.FieldBased,
+                JSONWriter.Feature.ErrorOnNoneSerializable,
+                JSONWriter.Feature.ReferenceDetection,
+                JSONWriter.Feature.WriteNulls,
+                JSONWriter.Feature.NotWriteDefaultValue,
+                JSONWriter.Feature.NotWriteHashMapArrayListClassName,
+                JSONWriter.Feature.WriteNameAsSymbol);
+        ContextAutoTypeBeforeHandler handler = new ContextAutoTypeBeforeHandler(true, obj.getClass());
+        Object result = JSONB.parseObject(bytes, obj.getClass(), handler,
+                JSONReader.Feature.UseDefaultConstructorAsPossible,
+                JSONReader.Feature.ErrorOnNoneSerializable,
+                JSONReader.Feature.IgnoreAutoTypeNotMatch,
+                JSONReader.Feature.UseNativeObject,
+                JSONReader.Feature.FieldBased);
+    }
+
+    @Getter
+    @Setter
+    @NoArgsConstructor
+    @AllArgsConstructor
+    static class Message<T>
+            implements Serializable {
+        T msg;
+    }
+}