List<VirtualFile> (PsiFile file, MavenDomProjectModel model) { Set<VirtualFile> virtualFiles = new HashSet<>(); VirtualFile virtualFile = file.getVirtualFile(); if (virtualFile != null) { virtualFiles.add(virtualFile); } XmlElement xmlElement = model.getXmlElement(); if (xmlElement != null) { VirtualFile vf = xmlElement.getContainingFile().getVirtualFile(); if (vf != null) virtualFiles.add(vf); } return new ArrayList<>(virtualFiles); }