Object (@Nullable PsiExpression expression, boolean throwConstantEvaluationOverflowException) { if (expression == null) { return null; } final Project project = expression.getProject(); final JavaPsiFacade psiFacade = JavaPsiFacade.getInstance(project); final PsiConstantEvaluationHelper constantEvaluationHelper = psiFacade.getConstantEvaluationHelper(); return constantEvaluationHelper.computeConstantExpression(expression, throwConstantEvaluationOverflowException); }