test/nashorn/src/META-INF/services/jdk.dynalink.linker.GuardingDynamicLinkerExporter
8218554: HttpServer: allow custom handlers to request that the connection be closed after the exchange.
Summary: custom handler code can supply `Connection: close` to response headers in order to force connection close after the exchange terminates.
Reviewed-by: chegar
jdk.dynalink.test.UntrustedGuardingDynamicLinkerExporter
jdk.dynalink.test.TrustedGuardingDynamicLinkerExporter
jdk.dynalink.test.TrustedUnderscoreNameLinkerExporter