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18 lines
518 B
HTML
18 lines
518 B
HTML
<html>
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<body>
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Reports redundant operations on empty collections, maps or arrays.
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<p>
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Iterating, removing elements, sorting,
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and some other operations on empty collections have no effect and can be removed. Also, they may be a signal of a bug.</p>
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<p><b>Example:</b></p>
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<pre><code>
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if (numbers.isEmpty()){
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//error due to the missed negation
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int max = numbers.stream().max(Comparator.naturalOrder()).get();
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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><small>New in 2019.1</small></p>
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</body>
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</html> |