Type hiding warning fix using generic name as BodyType and change in comment.

Author: Nakul Sabharwal

src/main/java/com/microsoft/graph/http/BaseCollectionRequest.java

@@ -92,12 +92,11 @@ protected T1 send() throws ClientException {
      *
      * @param serializedObject the object to serialize as the body
      * @param <T1>             the type of the callback result
-     * @param <T2>             the type of the serialized body
+     * @param <BodyType>       the type of the serialized body
      * @return the response object
      * @throws ClientException an exception occurs if there was an error while the request was sent
      */
-    @SuppressWarnings("unchecked")
-    protected <T1, T2> T1 post(final T2 serializedObject) throws ClientException {
+    protected <BodyType> T1 post(final BodyType serializedObject) throws ClientException {
         baseRequest.setHttpMethod(HttpMethod.POST);
         return (T1) baseRequest.getClient().getHttpProvider().send(this, responseClass, serializedObject);
     }