void (PsiElement element) { PsiExpressionStatement expressionStatement = tryCast(element, PsiExpressionStatement.class); if (expressionStatement == null) return; PsiMethodCallExpression call = tryCast(expressionStatement.getExpression(), PsiMethodCallExpression.class); if (call == null) return; PsiExpression arg = ArrayUtil.getFirstElement(call.getArgumentList().getExpressions()); PsiLambdaExpression lambdaExpression = tryCast(arg, PsiLambdaExpression.class); if (lambdaExpression == null) return; LambdaRefactoringUtil.simplifyToExpressionLambda(lambdaExpression); }