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openide/java/java-impl/resources/inspectionDescriptions/CastToIncompatibleInterface.html
2025-02-05 04:43:28 +00:00

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Reports type cast expressions where
the casted expression has a class/interface type that neither
extends/implements the cast class/interface type, nor has subclasses that do.
<p>
Such a construct is likely erroneous, and will
throw a <code>java.lang.ClassCastException</code> at runtime.
</p>
<p><b>Example:</b></p>
<pre><code>
interface A {}
interface Z {}
static class C {}
void x(C c) {
if (c instanceof Z) {
A a = ((A)c); // cast to incompatible interface 'A'
}
}
</code></pre>
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