The base script provider in Java for several languages was throwing an exception when trying to rename an empty library. The browsenodes member variable was being lazily created when getChildNodes was called but in the case where there were no children it was being left as null which was causing a Java runtime exception. Change-Id: I0d9eac2006bc26d47c22f2e1a7a4424fd67a512f Reviewed-on: https://gerrit.libreoffice.org/c/core/+/207152 Tested-by: Jenkins Reviewed-by: Neil Roberts <nroberts@libreoffice.org>