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20 lines
693 B
HTML
20 lines
693 B
HTML
<html>
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Reports cases in which an <code>instanceof</code> expression is used for testing the type of a parameter in a <code>catch</code> block.
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<p>Testing the type of <code>catch</code> parameters is usually better done by having separate
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<code>catch</code> blocks instead of using <code>instanceof</code>.</p>
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<p><b>Example:</b></p>
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<pre><code>
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void foo(Runnable runnable) {
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try {
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runnable.run();
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} catch (Throwable throwable) {
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if (throwable instanceof NoClassDefFoundError) { // warning: 'instanceof' on 'catch' parameter 'throwable'
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System.out.println("Class not found!");
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}
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}
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}
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</code></pre>
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