GroupingTerminal (@NotNull TerminalBlock tb, @Nullable List<PsiVariable> nonFinalVariables) { PsiStatement[] statements = tb.getStatements(); if (statements.length == 1) { if(nonFinalVariables != null && !nonFinalVariables.isEmpty()) return null; PsiMethodCallExpression call = tb.getSingleExpression(PsiMethodCallExpression.class); return tryExtractJava8Style(tb, call); } if (statements.length == 2) { if(nonFinalVariables != null && !nonFinalVariables.isEmpty()) return null; return tryExtractWithIntermediateVariable(tb); } return tryExtractJava7Style(tb, statements, nonFinalVariables); }