fix: Eliminate intermittent deadlock on agent startup. (#2183) #2184
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Description
This PR changes how the agent is initialized when running on the .NET Standard 2.0 build target so that it uses the same "deferred" initialization pattern that the .NET Framework build target currently uses. This will eliminate an intermittent deadlock that has been observed at agent startup which has the unfortunate side effect of freezing the customer application.
A new integration test was added that verifies the agent does not deadlock. This test was run against the agent from the current
main
branch and failed; the same test was run against this PR branch and succeeded.Fixes #2183