@Nullable private String extractReturnType() { final String ARROW = "->"; final StructuredDocString structuredDocString = getStructuredDocString(); if (structuredDocString != null) { return structuredDocString.getReturnType(); } final String docString = getDocStringValue(); if (docString != null && docString.contains(ARROW)) { final List<String> lines = StringUtil.split(docString, "\n"); while (lines.size() > 0 && lines.get(0).trim().length() == 0) { lines.remove(0); } if (lines.size() > 1 && lines.get(1).trim().length() == 0) { String firstLine = lines.get(0); int pos = firstLine.lastIndexOf(ARROW); if (pos >= 0) { return firstLine.substring(pos + 2).trim(); } } } return null; }