These classes allow you to switch on Apache HTTP Client “wire” level logging without filling your logs.

Set up the logger hierarchy (somewhat) like that in the example log4j.properties in this project and use the LogNoHttpResponseRetryHandler as your HttpResponseRetryHandler. Whenever a NoHttpResponseException is encountered the contents of the buffer in the InMemoryAppender will be flushed to the delegate logger you have configured.

Use LogNoHttpResponseRetryHandlerTest as an example to create your own handler, to dump the buffer on the exceptions you prefer.