java-topology/test/langtools/tools/javac/patterns/ReifiableOld.java
russell@unturf.com 0a580b313d undefect. CWE-407 — 63 sites patched across 27 ecosystems
Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com

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2026-03-26 17:11:57 -04:00

23 lines
860 B
Java

/*
* @test /nodynamiccopyright/
* @bug 8231827
* @summary Verify behavior w.r.t. non-reifiable types in instanceof
* @compile/fail/ref=ReifiableOld-old.out --release 15 -XDrawDiagnostics ReifiableOld.java
* @compile/fail/ref=ReifiableOld.out -XDrawDiagnostics ReifiableOld.java
*/
public class ReifiableOld implements ReifiableOldI {
private static boolean test(Object o, List<ReifiableOld> l1, List<String> l2) {
return o instanceof ListImpl<ReifiableOld> &&
l1 instanceof ListImpl<ReifiableOld> &&
l2 instanceof ListImpl<ReifiableOld> &&
l2 instanceof ListImpl<String> &&
l1 instanceof Unrelated<ReifiableOld>;
}
public class List<T> {}
public class ListImpl<T extends ReifiableOldI> extends List<T> {}
public class Unrelated<T> {}
}
interface ReifiableOldI {}