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Leonid Shalupovandintellij-monorepo-bot
40795fe787
GitOrigin-RevId: 8b2b63fc6db476ca0c2cfe5cadd84db6c4236d0f
27 lines
1.3 KiB
HTML
27 lines
1.3 KiB
HTML
<html>
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<body>
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Reports <code>clone()</code> methods that do not declare <code>throws CloneNotSupportedException</code>.
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<p>If <code>throws CloneNotSupportedException</code> is not declared, the method's subclasses will not be able to prohibit cloning
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in the standard way. This inspection does not report <code>clone()</code> methods declared <code>final</code>
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and <code>clone()</code> methods on <code>final</code> classes.</p>
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<!-- tooltip end -->
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<p>Configure the inspection:</p>
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<p>Use the <b>Only warn on 'protected' clone methods</b> option to indicate that this inspection should only warn on <code>protected clone()</code> methods.
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The <i>Effective Java</i> book (second and third edition) recommends omitting the <code>CloneNotSupportedException</code>
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declaration on <code>public</code> methods, because the methods that do not throw checked exceptions are easier to use.
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<p>Example:</p>
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<pre><code>
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<b>public class</b> Example <b>implements</b> Cloneable {
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// method doesn't declare 'throws CloneNotSupportedException'
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<b>protected</b> Object clone() {
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<b>try</b> {
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<b>return</b> <b>super</b>.clone();
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} <b>catch</b> (CloneNotSupportedException e) {
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<b>return</b> null;
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}
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}
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}
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</code></pre>
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</body>
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</html> |