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Leonid Shalupovandintellij-monorepo-bot
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25 lines
948 B
HTML
25 lines
948 B
HTML
<html>
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<body>
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Reports <code>synchronized</code> blocks that lock on an object initialized with a literal.
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<p>
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String literals are interned and <code>Character</code>, <code>Boolean</code> and <code>Number</code> literals can be allocated from a cache.
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Because of this, it is possible that some other part of the system, which uses an object initialized with the same literal, is actually
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holding a reference to the exact same object. This can create unexpected dead-lock situations, if the lock object was thought to be private.
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</p>
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<p><b>Example:</b></p>
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<pre><code>
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class Main {
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final String mutex = "Mutex";
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void method() {
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synchronized (mutex) {
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}
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}
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}
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</code></pre>
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<!-- tooltip end -->
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<p>
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Use the <strong>Warn on all possible literals</strong> option to report any synchronization on
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<code>String</code>, <code>Character</code>, <code>Boolean</code> and <code>Number</code> objects.
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</p>
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</body>
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</html> |