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import org.checkerframework.checker.nullness.qual.*;
/* Test case that illustrated an unsoundness in the unification of
* type variables with non-type variables. The error did not previously
* get raised, leading to a missed NPE.
*/
// :: error: (initialization.fields.uninitialized)
public class NullableLUB<T extends @Nullable Object> {
T t;
@Nullable T nt;
T m(boolean b, T p) {
T r1 = b ? p : null;
nt = r1;
// :: error: (assignment.type.incompatible)
t = r1;
// :: error: (return.type.incompatible)
return r1;
}
public static void main(String[] args) {
new NullableLUB<@NonNull Object>().m(false, new Object()).toString();
}
T m2(boolean b, T p) {
T r1 = b ? null : p;
nt = r1;
// :: error: (assignment.type.incompatible)
t = r1;
// :: error: (return.type.incompatible)
return r1;
}
}
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