Yield `UnsupportedMessageException` when context isn't accessible #29764

Job	Run time
Cancel Previous Runs	2s
Engine (GraalVM CE) (linux, amd64)	18m 55s
Engine (GraalVM CE) (macos, amd64)	39m 12s
Engine (GraalVM CE) (windows, amd64)	16m 55s
JVM Tests (GraalVM CE) (linux, amd64)	27m 9s
JVM Tests (GraalVM CE) (macos, amd64)	1h 0m 55s
JVM Tests (GraalVM CE) (windows, amd64)	39m 57s
Standard Library Tests (GraalVM CE) (linux, amd64)	19m 38s
Standard Library Tests (GraalVM CE) (macos, amd64)	47m 41s
Standard Library Tests (GraalVM CE) (windows, amd64)	21m 26s
Verify License Packages (linux, amd64)	52s
	4h 52m 42s

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