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29 lines
1.1 KiB
HTML
29 lines
1.1 KiB
HTML
<html>
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<body>
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Reports comparisons where left and right operand represent the identical expression.
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While sometimes comparing an expression with itself could be intended, in most cases they are the result of an oversight.
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<p>Example:</p>
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<pre><code>
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// Probably left.getLength() == right.getLength() was intended
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boolean result = left.getLength() == left.getLength();
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</code></pre>
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<!-- tooltip end -->
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<p>
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To ignore comparisons that may produce side effects, use the <b>Ignore conditions with side effects</b> option.
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Disabling this option may lead to false-positives, for example, when the same method returns different values on subsequent invocations.
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</p>
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<p>Example:</p>
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<pre><code>
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native int unknownMethod();
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...
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if (unknownMethod() > unknownMethod()) {
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System.out.println("Got it");
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}
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</code></pre>
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<p>Due to possible side effects of <code>unknownMethod()</code> (on the example), the warning will only be
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triggered if the <b>Ignore conditions with side effects</b> option is disabled.</p>
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<p><small>New in 2024.2</small></p>
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</body>
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</html> |