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Java: Don't inherit methods from co-/contra-variant supertypes.

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This commit is contained in:
Anders Schack-Mulligen
2018-11-09 12:58:37 +01:00
parent 2f0e693b38
commit 411891c303
3 changed files with 15 additions and 20 deletions
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2
java/ql/test/query-tests/Naming/ConfusingOverloading.expected
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@@ -1 +1 @@
| NamingTest.java:4:17:4:22 | equals | Method NamingTest.equals(..) could be confused with overloaded method $@, since dispatch depends on static types. | NamingTest.java:3:17:3:22 | equals | equals |
| NamingTest.java:7:17:7:22 | equals | Method NamingTest.equals(..) could be confused with overloaded method $@, since dispatch depends on static types. | NamingTest.java:6:17:6:22 | equals | equals |

13
java/ql/test/query-tests/Naming/NamingTest.java
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@@ -1,8 +1,19 @@
import java.util.*;
import java.util.function.*;
import java.util.stream.*;
public class NamingTest {
public boolean equals(Object other) { return false; }
public boolean equals(NamingTest other) { return true; }
public void visit(Object node) {}
public void visit(NamingTest t) {}
public class Elem<T> {}
public Object get(List<Elem<String>> lll) {
Predicate<?> p = null;
p.test(null);
return lll.stream().map(l -> l).filter(Objects::nonNull).collect(Collectors.toList());
}
}