populateRequestMetadata when doing preflight

Author: jeffreykzli

pom.xml

@@ -4,7 +4,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.qcloud</groupId>
     <artifactId>cos_api</artifactId>
-    <version>5.6.238.2</version>
+    <version>5.6.238.3</version>
     <packaging>jar</packaging>
     <name>cos-java-sdk</name>
     <description>java sdk for qcloud cos</description>

src/main/java/com/qcloud/cos/COSClient.java

@@ -5550,8 +5550,9 @@ private void preflightObj(PutObjectRequest putObjectRequest) throws CosClientExc
                 request.setEndpoint(putObjectRequest.getFixedEndpointAddr());
             }
             request.addParameter("preflight", null);
+            ObjectMetadata metadata = putObjectRequest.getMetadata();
+            populateRequestMetadata(request, metadata);
             request.addHeader("x-cos-next-action", "PutObject");
-
             invoke(request, voidCosResponseHandler);
         }
     }