// !DIAGNOSTICS: -UNUSED_VARIABLE -UNUSED_PARAMETER
// FILE: A.java

import androidx.annotation.*;

public class A<T> {
    @RecentlyNullable public String field = null;

    @RecentlyNullable
    public String foo(@RecentlyNonNull String x, @RecentlyNullable CharSequence y) {
        return "";
    }

    @RecentlyNonNull
    public String bar() {
        return "";
    }

    @RecentlyNullable
    public T baz(@RecentlyNonNull T x) { return x; }

    @RecentlyNonNull
    public T baz2(@RecentlyNullable T x) { return x; }
}

// FILE: main.kt

fun main(a: A<String>, a1: A<String?>) {
    a.foo("", null)?.length
    <!RECEIVER_NULLABILITY_MISMATCH_BASED_ON_JAVA_ANNOTATIONS("String?")!>a.foo("", null)<!>.length
    <!RECEIVER_NULLABILITY_MISMATCH_BASED_ON_JAVA_ANNOTATIONS!>a.foo(<!NULLABILITY_MISMATCH_BASED_ON_JAVA_ANNOTATIONS("String", "Nothing?")!>null<!>, "")<!>.length

    a.bar().length
    a.bar()<!UNNECESSARY_NOT_NULL_ASSERTION!>!!<!>.length

    a.field?.length
    <!RECEIVER_NULLABILITY_MISMATCH_BASED_ON_JAVA_ANNOTATIONS!>a.field<!>.length

    <!RECEIVER_NULLABILITY_MISMATCH_BASED_ON_JAVA_ANNOTATIONS!>a.baz("")<!>.length
    a.baz("")?.length
    <!RECEIVER_NULLABILITY_MISMATCH_BASED_ON_JAVA_ANNOTATIONS!>a.baz(<!NULLABILITY_MISMATCH_BASED_ON_JAVA_ANNOTATIONS!>null<!>)<!>.length

    a1.baz("")!!.length
    a1.baz(<!NULLABILITY_MISMATCH_BASED_ON_JAVA_ANNOTATIONS!>null<!>)!!.length

    a.baz2("").length
    a.baz2("")<!UNNECESSARY_SAFE_CALL!>?.<!>length
    a.baz2("")<!UNNECESSARY_NOT_NULL_ASSERTION!>!!<!>.length

    a.baz2(null).length
    a.baz2(null)<!UNNECESSARY_SAFE_CALL!>?.<!>length
    a.baz2(null)<!UNNECESSARY_NOT_NULL_ASSERTION!>!!<!>.length
}