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2024.3

Synchronization on variable initialized with literal

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Last modified: 03 December 2024

Reports synchronized blocks which lock on an object which is initialized with a literal.

String literals are interned and Number literals can be allocated from a cache. Because of this, it is possible that some other part of the system which uses an object initialized with the same literal, is actually holding a reference to the exact same object. This can create unexpected dead-lock situations, if the string was thought to be private.