but after we removed content, it will no longer exist, so ```get``` method will throw exception inside because ```HTTP Status-Code``` is 400 (Not found) instead of ```HTTP_OK```
```
public Content get(
        @NotNull(message = "path can't be NULL") final String path,
        @NotNull(message = "ref can't be NULL") final String ref
    )
        throws IOException {
        final JsonStructure json = Json.createObjectBuilder()
            .add("path", path)
            .add("ref", ref)
            .build();
        return new RtContent(
            this.entry, this.owner,
            this.request.method(Request.GET)
                .uri().path(path).back()
                .body().set(json).back()
                .fetch()
                .as(RestResponse.class)
                .assertStatus(HttpURLConnection.HTTP_OK)
                .as(JsonResponse.class)
                .json().readObject().getString("path")
        );
    }
```