public void validate()

in src/main/java/org/apache/maven/resolver/internal/ant/types/Exclusion.java [47:56]


    public void validate(Task task) {
        if (isReference()) {
            getRef().validate(task);
        } else {
            if (groupId == null && artifactId == null && classifier == null && extension == null) {
                throw new BuildException(
                        "You must specify at least one of " + "'groupId', 'artifactId', 'classifier' or 'extension'");
            }
        }
    }