// propagate headers as HTTP headers
for (String headerName : in.getHeaders().keySet()) {
String headerValue = in.getHeader(headerName, String.class);
if (strategy != null && !strategy.applyFilterToCamelHeaders(headerName, headerValue, exchange)) {
method.addRequestHeader(headerName, headerValue);
}
}
// lets store the result in the output message.
try {