Package `@DefaultQualifier` overrides class `@DefaultQualifier`

Sample:

package-info.java

@DefaultQualifier(value = NonNull.class, locations = TypeUseLocation.FIELD)
@DefaultQualifier(value = NonNull.class, locations = TypeUseLocation.PARAMETER)
@DefaultQualifier(value = NonNull.class, locations = TypeUseLocation.RETURN)
package org.apache.calcite.util;

import org.checkerframework.checker.nullness.qual.NonNull;
import org.checkerframework.framework.qual.DefaultQualifier;
import org.checkerframework.framework.qual.TypeUseLocation;

Glossary.java

package org.apache.calcite.util;

import org.checkerframework.checker.nullness.qual.Nullable;
import org.checkerframework.framework.qual.DefaultQualifier;
import org.checkerframework.framework.qual.TypeUseLocation;

@DefaultQualifier(
    value = Nullable.class,
    locations = TypeUseLocation.ALL
)
public interface Glossary {
  Glossary PATTERN = null;
  Glossary SQL2003 = null;
}

Error:

core/src/main/java/org/apache/calcite/util/Glossary.java:331: error: [assignment.type.incompatible] incompatible types in assignment.
  Glossary PATTERN = null;
                     ^
  found   : null
  required: @Initialized @NonNull Glossary