void (@NotNull PsiThrowStatement statement) { super.visitThrowStatement(statement); final PsiExpression exception = PsiUtil.skipParenthesizedExprDown(statement.getException()); if (!(exception instanceof PsiLiteralExpression)) { return; } final PsiType type = exception.getType(); if (!PsiTypes.nullType().equals(type)) { return; } registerError(exception); }