Lachlan Roberts e98809c990 javax WebSocketMappings now stored in ContextHandler attributes
WebSocketMappings are now stored as attributes in the ContextHandler

init params can be set on the filterHolder to specify what mapping
should be used

the default mapping is stored with attribute key
WebSocketMapping.DEFAULT_KEY and ensureFilter now doesn't ensure there
is an UpgradeFilter registered at "/*" but checks that there is an
UpgradeFilter using the default mapping

Signed-off-by: Lachlan Roberts <lachlan@webtide.com>
2019-01-24 15:10:13 +11:00
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