public java.lang.String getRelativeUrl() {
      java.lang.Object ref = relativeUrl_;
      if (!(ref instanceof java.lang.String)) {
        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
        java.lang.String s = bs.toStringUtf8();
        relativeUrl_ = s;
        return s;
      } else {
        return (java.lang.String) ref;
      }
    }
<pre>
The relative URL.

The relative URL must begin with "/" and must be a valid HTTP relative URL.
It can contain a path and query string arguments.
If the relative URL is empty, then the root path "/" will be used.
No spaces are allowed, and the maximum length allowed is 2083 characters.
</pre>

<code>string relative_url = 3;</code>

@return The relativeUrl.
java-tasks/proto-google-cloud-tasks-v2beta2/src/main/java/com/google/cloud/tasks/v2beta2/AppEngineHttpRequest.java