import org.checkerframework.checker.nullness.qual.*; public final class MonotonicNonNullTest { public static @MonotonicNonNull Boolean new_decl_format = null; static final class SerialFormat { public boolean new_decl_format = false; @RequiresNonNull("MonotonicNonNullTest.new_decl_format") public SerialFormat() { this.new_decl_format = MonotonicNonNullTest.new_decl_format; } } }