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import org.checkerframework.checker.nullness.qual.Nullable;
class Generic<G extends @Nullable Object> {}
class MyClass extends Generic<MyClass> {}
class BoundedGeneric<B extends @Nullable CharSequence> {}
class RawTypesNullness {
Generic rawReturn() {
return new Generic();
}
Generic rawField = new Generic();
void use() {
Generic rawLocal = new Generic<>();
Generic<?> generic1 = rawReturn();
Generic<?> generic2 = rawField;
Generic<?> generic3 = rawLocal;
}
}
class TestBounded {
BoundedGeneric rawReturn() {
return new BoundedGeneric<>();
}
BoundedGeneric rawField = new BoundedGeneric();
void useWildCard() {
BoundedGeneric rawLocal = new BoundedGeneric<String>();
BoundedGeneric<?> generic1 = rawReturn();
BoundedGeneric<?> generic2 = rawField;
BoundedGeneric<?> generic3 = rawLocal;
}
void useBoundedWildCard() {
BoundedGeneric rawLocal = new BoundedGeneric<String>();
// :: warning: [unchecked] unchecked conversion
BoundedGeneric<? extends Object> generic1 = rawReturn();
// :: warning: [unchecked] unchecked conversion
BoundedGeneric<? extends Object> generic2 = rawField;
// :: warning: [unchecked] unchecked conversion
BoundedGeneric<? extends Object> generic3 = rawLocal;
}
void useBoundedWildCard2() {
BoundedGeneric rawLocal = new BoundedGeneric<String>();
// :: warning: [unchecked] unchecked conversion
BoundedGeneric<? extends CharSequence> generic1 = rawReturn();
// :: warning: [unchecked] unchecked conversion
BoundedGeneric<? extends CharSequence> generic2 = rawField;
// :: warning: [unchecked] unchecked conversion
BoundedGeneric<? extends CharSequence> generic3 = rawLocal;
}
void useTypeArg() {
BoundedGeneric rawLocal = new BoundedGeneric<String>();
// :: warning: [unchecked] unchecked conversion
BoundedGeneric<String> generic1 = rawReturn();
// :: warning: [unchecked] unchecked conversion
BoundedGeneric<String> generic2 = rawField;
// :: warning: [unchecked] unchecked conversion
BoundedGeneric<String> generic3 = rawLocal;
}
void useAnnotatedTypeArg() {
BoundedGeneric rawLocal = new BoundedGeneric<String>();
// :: warning: [unchecked] unchecked conversion
BoundedGeneric<@Nullable String> generic1 = rawReturn();
// :: warning: [unchecked] unchecked conversion
BoundedGeneric<@Nullable String> generic2 = rawField;
// :: warning: [unchecked] unchecked conversion
BoundedGeneric<@Nullable String> generic3 = rawLocal;
}
}
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