Essentially, like a bulletproof tank, i want my program to absord 404 errors and keep on rolling, crushing the interwebs and leaving corpses dead and bludied in its wake, or, w/e. 

I keep getting this error:

```
Exception in thread "main" org.jsoup.HttpStatusException: HTTP error fetching URL. Status=404, URL=https://en.wikipedia.org/wiki/Hudson+Township+%28disambiguation%29
at org.jsoup.helper.HttpConnection$Response.execute(HttpConnection.java:537)
at org.jsoup.helper.HttpConnection$Response.execute(HttpConnection.java:493)
at org.jsoup.helper.HttpConnection.execute(HttpConnection.java:205)
at org.jsoup.helper.HttpConnection.get(HttpConnection.java:194)
at Q.Wikipedia_Disambig_Fetcher.all_possibilities(Wikipedia_Disambig_Fetcher.java:29)
at Q.Wikidata_Q_Reader.getQ(Wikidata_Q_Reader.java:54)
at Q.Wikipedia_Disambig_Fetcher.all_possibilities(Wikipedia_Disambig_Fetcher.java:38)
at Q.Wikidata_Q_Reader.getQ(Wikidata_Q_Reader.java:54)
at Q.Runner.main(Runner.java:35)

```

But I can't understand why because I *am* checking to see if I have a valid URL before I navigate to it. What about my checking procedure is incorrect?

I tried to examine the other stack overflow questions on this subject but they're not very authoritative, plus I implemented the many of the solutions from [this one](https://stackoverflow.com/questions/2230676/how-to-check-for-a-valid-url-in-java) and [this one](https://stackoverflow.com/questions/1378199/how-to-check-if-a-url-exists-or-returns-404-with-java?lq=1), so far nothing has worked. 

I'm using the apache commons URL validator, this is the code I've been using most recently: 

```
    //get it's normal wiki disambig page
    String URL_check = "https://en.wikipedia.org/wiki/" + associated_alias;

    UrlValidator urlValidator = new UrlValidator();

    if ( urlValidator.isValid( URL_check ) ) 
    {
       Document docx = Jsoup.connect( URL_check ).get();
        //this can handle the less structured ones. 

```

and 

```
    //check the validity of the URL
    String URL_czech = "https://www.wikidata.org/wiki/Special:ItemByTitle?site=en&page=" + associated_alias + "&submit=Search";

    UrlValidator urlValidator = new UrlValidator();

    if ( urlValidator.isValid( URL_czech ) ) 
    {
        URL wikidata_page = new URL( URL_czech );
        URLConnection wiki_connection = wikidata_page.openConnection();
        BufferedReader wiki_data_pagecontent = new BufferedReader(
                                                   new InputStreamReader(
                                                        wiki_connection.getInputStream()));

```