import com.android.dx.cf.attrib.AttRuntimeVisibleAnnotations; //导入依赖的package包/类
/**
 * Helper method for {@link #getAnnotations} which just gets the
 * existing annotations, per se.
 *
 * @param attribs {@code non-null;} the attributes list to search in
 * @return {@code non-null;} the set of annotations, which may be empty
 */
private static Annotations getAnnotations0(AttributeList attribs) {
    AttRuntimeVisibleAnnotations visible =
        (AttRuntimeVisibleAnnotations)
        attribs.findFirst(AttRuntimeVisibleAnnotations.ATTRIBUTE_NAME);
    AttRuntimeInvisibleAnnotations invisible =
        (AttRuntimeInvisibleAnnotations)
        attribs.findFirst(AttRuntimeInvisibleAnnotations.ATTRIBUTE_NAME);

    if (visible == null) {
        if (invisible == null) {
            return Annotations.EMPTY;
        }
        return invisible.getAnnotations();
    }

    if (invisible == null) {
        return visible.getAnnotations();
    }

    // Both are non-null, so combine them.

    return Annotations.combine(visible.getAnnotations(),
            invisible.getAnnotations());
}
 

import com.android.dx.cf.attrib.AttRuntimeVisibleAnnotations; //导入依赖的package包/类
/**
 * Parses a {@code RuntimeVisibleAnnotations} attribute.
 */
private Attribute runtimeVisibleAnnotations(DirectClassFile cf,
        int offset, int length, ParseObserver observer) {
    if (length < 2) {
        throwSeverelyTruncated();
    }

    AnnotationParser ap =
        new AnnotationParser(cf, offset, length, observer);
    Annotations annotations =
        ap.parseAnnotationAttribute(AnnotationVisibility.RUNTIME);

    return new AttRuntimeVisibleAnnotations(annotations, length);
}
 

import com.android.dx.cf.attrib.AttRuntimeVisibleAnnotations; //导入依赖的package包/类
private boolean hasRuntimeVisibleAnnotation(HasAttribute element) {
    Attribute att = element.getAttributes().findFirst(
            AttRuntimeVisibleAnnotations.ATTRIBUTE_NAME);
    return (att != null && ((AttRuntimeVisibleAnnotations)att).getAnnotations().size()>0);
}