Fix single-check idiom in UnmodifiableMultiValueMap #35822
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Read the respective fields only once in values, entrySet, and keySet methods. Signed-off-by: Patrick Strawderman <[email protected]>
spring-projects-issues
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status: waiting-for-triage
sbrannen
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in: core
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Read the respective fields only once in values, entrySet, and keySet methods.
See: https://javaagile.blogspot.com/2013/05/the-racy-single-check-idiom.html