Before the changes in 15dd24754a temporary
web resources could proliferate and consume inordinate amounts of disk
space because their directory names were generated uniquely every time
Jetty was started. However, now that they are deterministic no
proliferation is possible. Jetty will create the directories when it
starts, remove them when it stops, and if it fails to clean-up on
shutdown (e.g. crash from OOME) it will clean-up and recreate them when
it starts.
Therefore, our own house-keeping of those directories is no longer
needed and, in fact, causes problems. For example, when executing the
`restartEmbeddedWebServer` management operation the temp web resources
will actually be removed inadvertently causing the web console to fail.
This commit removes the web temp house-keeping logic as well as the
related tests. It also modifies & adds tests to ensure Jetty does this
house-keeping on its own.
5db043da0f