*/
    public String getId() {
        return new StringBuilder(128)
            .append((getGroupId() == null) ? "[unknown-group-id]" : getGroupId())
            .append(":")
            .append((getArtifactId() == null) ? "[unknown-artifact-id]" : getArtifactId())
            .append(":")
            .append((getVersion() == null) ? "[unknown-version]" : getVersion())

ull Creates a matcher that matches if examined object is null. nullValue(Class<T>) - Static method in class org.hamcrest.core.IsNull Creates a matcher that matches if examined object is null. nullValue() - Static method in class org.hamcrest.CoreMatchers Creates a matcher that matches if examined object is null. nullValue(Class<T>) - Static method in class org.hamcrest.CoreMatchers Creates a matcher that matches if examined object is null. O or(Matcher<? super X>) - Method in class org.hamcrest....