/*+
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 * @test /nodynamiccopyright/+
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 * @bug 4881267+
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 * @summary improve diagnostic for "instanceof T" for type parameter T+
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 * @compile/fail/ref=T4881267.out -XDrawDiagnostics T4881267.java+
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 */+
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+
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class T4881267 {+
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    <T> void m(Object o) {+
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        boolean b = o instanceof T;+
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    }+
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}+
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