in sources/java-incremental-compilation/jvm-inc-builder/src/com/intellij/tools/build/bazel/org/jdom/Verifier.java [760:789]
private static String checkNamespaceCollision(Namespace namespace, List<?> list, final int ignoreAtt) {
if (list == null) {
return null;
}
String reason = null;
final Iterator<?> i = list.iterator();
int cnt = -1;
while ((reason == null) && i.hasNext()) {
final Object obj = i.next();
cnt++;
if (obj instanceof Attribute) {
if (cnt == ignoreAtt) {
continue;
}
reason = checkNamespaceCollision(namespace, (Attribute)obj);
}
else if (obj instanceof Element) {
reason = checkNamespaceCollision(namespace, (Element)obj);
}
else if (obj instanceof Namespace) {
reason = checkNamespaceCollision(namespace, (Namespace)obj);
if (reason != null) {
reason += " with an additional namespace declared" +
" by the element";
}
}
}
return reason;
}