fix: call ResponseMetadataHanlder#onTrailers before calling onClose (#1549)

mutianf · web-flow · commit 19a77a4f6c62 · 2021-11-03T11:05:37.000-04:00
diff --git a/gax-grpc/src/main/java/com/google/api/gax/grpc/GrpcMetadataHandlerInterceptor.java b/gax-grpc/src/main/java/com/google/api/gax/grpc/GrpcMetadataHandlerInterceptor.java
@@ -73,8 +73,8 @@ public void onHeaders(Metadata headers) {
 
               @Override
               public void onClose(Status status, Metadata trailers) {
-                super.onClose(status, trailers);
                 metadataHandler.onTrailers(trailers);
+                super.onClose(status, trailers);
               }
             };
         super.start(forwardingResponseListener, headers);

Original file line number	Diff line number	Diff line change
`@@ -73,8 +73,8 @@ public void onHeaders(Metadata headers) {`
`73`	`73`
`74`	`74`	`@Override`
`75`	`75`	`public void onClose(Status status, Metadata trailers) {`
`76`		`- super.onClose(status, trailers);`
`77`	`76`	`metadataHandler.onTrailers(trailers);`
	`77`	`+ super.onClose(status, trailers);`
`78`	`78`	`}`
`79`	`79`	`};`
`80`	`80`	`super.start(forwardingResponseListener, headers);`