netty4-http increase max content length

[Mark]

I am trying to create a Camel based REST endpoint that will need to consume
file uploads greater than the default 1 MB limit.  I created my REST
configuration using the following code:

restConfiguration()
    .component("netty4-http")
    .bindingMode(RestBindingMode.off)
    .contextPath("whatever")
    .componentProperty("chunkedMaxContentLength", "8388608")
    .componentProperty("maxHeaderSize", "8388608")
    .host("0.0.0.0")
    .port("{{port}}")
;

Even when I send a file less than 8 MB and greater than 1 MB I still get
the exception:

2017-11-28 11:12:47,474 | WARN  | entExecutorGroup | NettyHttpConsumer
          | 267 - org.apache.camel.camel-netty4-http - 2.16.2 |
HttpServerChannelHandler is not found as attachment to handle exception,
send 404 back to the client.
io.netty.handler.codec.TooLongFrameException: HTTP content length exceeded
1048576 bytes.
at
io.netty.handler.codec.http.HttpObjectAggregator.decode(HttpObjectAggregator.java:218)[255:io.netty.codec-http:4.0.41.Final]
at
io.netty.handler.codec.http.HttpObjectAggregator.decode(HttpObjectAggregator.java:57)[255:io.netty.codec-http:4.0.41.Final]
at
io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:88)[287:io.netty.codec:4.0.41.Final]


Is there some other way that I'm supposed to be configuring the REST
endpoint or am I doing this wrong?  Secondly, should I use a different REST
component to get better performance out of large file uploading?

Thanks in advance.