Set empty HttpEntity if request body is null.

Mihhail Verhovtsov · Adrian Cole · commit 431b32823781 · 2017-08-02T08:54:53.000+08:00
Otherwise RequestBuilder will create HttpEntity from query parameters.
diff --git a/httpclient/src/main/java/feign/httpclient/ApacheHttpClient.java b/httpclient/src/main/java/feign/httpclient/ApacheHttpClient.java
@@ -145,6 +145,8 @@ HttpUriRequest toHttpUriRequest(Request request, Request.Options options) throws
       }
 
       requestBuilder.setEntity(entity);
+    } else {
+      requestBuilder.setEntity(new ByteArrayEntity(new byte[0]));
     }
 
     return requestBuilder.build();

Original file line number	Diff line number	Diff line change
`@@ -145,6 +145,8 @@ HttpUriRequest toHttpUriRequest(Request request, Request.Options options) throws`
`145`	`145`	`}`
`146`	`146`
`147`	`147`	`requestBuilder.setEntity(entity);`
	`148`	`+ } else {`
	`149`	`+ requestBuilder.setEntity(new ByteArrayEntity(new byte[0]));`
`148`	`150`	`}`
`149`	`151`
`150`	`152`	`return requestBuilder.build();`