Program: 158764
Project: 158764
Buggy source:
private Map<String,String> getSetLinks(String cardSet){
  Map<String,String> setLinks=new HashMap<>();
  try {
    String setNames=setsAliases.get(cardSet.toLowerCase());
    Set<String> aliasesStart=cardNameAliasesStart.get(cardSet);
    if (setNames == null) {
      setNames=cardSet.toLowerCase();
    }
    Preferences prefs=MageFrame.getPreferences();
    Connection.ProxyType proxyType=Connection.ProxyType.valueByText(prefs.get("String_Node_Str","String_Node_Str"));
    for (    String setName : setNames.split("String_Node_Str")) {
      String URLSetName=URLEncoder.encode(setName,"String_Node_Str");
      String baseUrl="String_Node_Str" + URLSetName + "String_Node_Str";
      String urlDocument;
      Document doc;
      if (proxyType.equals(ProxyType.NONE)) {
        urlDocument=baseUrl;
        doc=Jsoup.connect(urlDocument).get();
      }
 else {
        String proxyServer=prefs.get("String_Node_Str","String_Node_Str");
        int proxyPort=Integer.parseInt(prefs.get("String_Node_Str","String_Node_Str"));
        URL url=new URL(baseUrl);
        Proxy proxy=new Proxy(Proxy.Type.HTTP,new InetSocketAddress(proxyServer,proxyPort));
        HttpURLConnection uc=(HttpURLConnection)url.openConnection(proxy);
        uc.connect();
        String line;
        StringBuffer tmp=new StringBuffer();
        BufferedReader in=new BufferedReader(new InputStreamReader(uc.getInputStream()));
        while ((line=in.readLine()) != null) {
          tmp.append(line);
        }
        doc=Jsoup.parse(String.valueOf(tmp));
      }
      Elements cardsImages=doc.select("String_Node_Str");
      if (!aliasesStart.isEmpty()) {
        for (        String text : aliasesStart) {
          cardsImages.addAll(doc.select("String_Node_Str" + text + "String_Node_Str"));
        }
      }
      if (cardsImages.isEmpty()) {
        break;
      }
      for (      Element cardsImage : cardsImages) {
        String cardLink=cardsImage.attr("String_Node_Str");
        String cardName=null;
        if (cardLink.startsWith("String_Node_Str") && cardLink.endsWith("String_Node_Str")) {
          cardName=cardLink.substring(6,cardLink.length() - 4);
        }
 else         if (aliasesStart.contains(cardLink)) {
          cardName=cardLink.substring(0,cardLink.length() - 4);
          ;
        }
        if (cardName != null && !cardName.isEmpty()) {
          if (cardNameAliases.containsKey(cardSet + "String_Node_Str" + cardName)) {
            cardName=cardNameAliases.get(cardSet + "String_Node_Str" + cardName);
          }
          if (cardName.endsWith("String_Node_Str") || cardName.endsWith("String_Node_Str") || cardName.endsWith("String_Node_Str")|| cardName.endsWith("String_Node_Str")|| cardName.endsWith("String_Node_Str")) {
            if (!cardName.startsWith("String_Node_Str") && !cardName.startsWith("String_Node_Str") && !cardName.startsWith("String_Node_Str")&& !cardName.startsWith("String_Node_Str")&& !cardName.startsWith("String_Node_Str")) {
              cardName=cardName.substring(0,cardName.length() - 1);
            }
          }
          setLinks.put(cardName,baseUrl + cardLink);
        }
      }
    }
  }
 catch (  IOException ex) {
    System.out.println("String_Node_Str" + ex.getMessage());
  }
  return setLinks;
}

Fixed version (ground truth):
private Map<String,String> getSetLinks(String cardSet){
  Map<String,String> setLinks=new HashMap<>();
  try {
    String setNames=setsAliases.get(cardSet.toLowerCase());
    Set<String> aliasesStart=new HashSet<>();
    if (cardNameAliasesStart.containsKey(cardSet)) {
      aliasesStart.addAll(cardNameAliasesStart.get(cardSet));
    }
    if (setNames == null) {
      setNames=cardSet.toLowerCase();
    }
    Preferences prefs=MageFrame.getPreferences();
    Connection.ProxyType proxyType=Connection.ProxyType.valueByText(prefs.get("String_Node_Str","String_Node_Str"));
    for (    String setName : setNames.split("String_Node_Str")) {
      String URLSetName=URLEncoder.encode(setName,"String_Node_Str");
      String baseUrl="String_Node_Str" + URLSetName + "String_Node_Str";
      String urlDocument;
      Document doc;
      if (proxyType.equals(ProxyType.NONE)) {
        urlDocument=baseUrl;
        doc=Jsoup.connect(urlDocument).get();
      }
 else {
        String proxyServer=prefs.get("String_Node_Str","String_Node_Str");
        int proxyPort=Integer.parseInt(prefs.get("String_Node_Str","String_Node_Str"));
        URL url=new URL(baseUrl);
        Proxy proxy=new Proxy(Proxy.Type.HTTP,new InetSocketAddress(proxyServer,proxyPort));
        HttpURLConnection uc=(HttpURLConnection)url.openConnection(proxy);
        uc.connect();
        String line;
        StringBuffer tmp=new StringBuffer();
        BufferedReader in=new BufferedReader(new InputStreamReader(uc.getInputStream()));
        while ((line=in.readLine()) != null) {
          tmp.append(line);
        }
        doc=Jsoup.parse(String.valueOf(tmp));
      }
      Elements cardsImages=doc.select("String_Node_Str");
      if (!aliasesStart.isEmpty()) {
        for (        String text : aliasesStart) {
          cardsImages.addAll(doc.select("String_Node_Str" + text + "String_Node_Str"));
        }
      }
      if (cardsImages.isEmpty()) {
        break;
      }
      for (      Element cardsImage : cardsImages) {
        String cardLink=cardsImage.attr("String_Node_Str");
        String cardName=null;
        if (cardLink.startsWith("String_Node_Str") && cardLink.endsWith("String_Node_Str")) {
          cardName=cardLink.substring(6,cardLink.length() - 4);
        }
 else         if (aliasesStart.contains(cardLink)) {
          cardName=cardLink.substring(0,cardLink.length() - 4);
          ;
        }
        if (cardName != null && !cardName.isEmpty()) {
          if (cardNameAliases.containsKey(cardSet + "String_Node_Str" + cardName)) {
            cardName=cardNameAliases.get(cardSet + "String_Node_Str" + cardName);
          }
          if (cardName.endsWith("String_Node_Str") || cardName.endsWith("String_Node_Str") || cardName.endsWith("String_Node_Str")|| cardName.endsWith("String_Node_Str")|| cardName.endsWith("String_Node_Str")) {
            if (!cardName.startsWith("String_Node_Str") && !cardName.startsWith("String_Node_Str") && !cardName.startsWith("String_Node_Str")&& !cardName.startsWith("String_Node_Str")&& !cardName.startsWith("String_Node_Str")) {
              cardName=cardName.substring(0,cardName.length() - 1);
            }
          }
          setLinks.put(cardName,baseUrl + cardLink);
        }
      }
    }
  }
 catch (  IOException ex) {
    System.out.println("String_Node_Str" + ex.getMessage());
  }
  return setLinks;
}