Program: 68997
Project: 68997
Buggy source:
public EndpointsButton(final Component view,final IBurpExtenderCallbacks callbacks,int mode){
  this.mode=mode;
  setText(getButtonText());
  addActionListener(new java.awt.event.ActionListener(){
    @Override public void actionPerformed(    java.awt.event.ActionEvent e){
      boolean configured=ConfigurationDialogs.show(view,getDialogMode());
      boolean makeReqs=true;
      boolean completed=false;
      java.util.List<String> nodes=new ArrayList<>();
      if (configured) {
        if (BurpPropertiesManager.getBurpPropertiesManager().getConfigFile() != null)         callbacks.loadConfigFromJson(getBurpConfigAsString());
        try {
          EndpointDecorator[] endpoints=getEndpoints(view);
          EndpointDecorator[] comparePoints=null;
          if (BurpPropertiesManager.getBurpPropertiesManager().getOldSourceFolder() != null && !BurpPropertiesManager.getBurpPropertiesManager().getOldSourceFolder().trim().isEmpty() && mode == 0)           comparePoints=getComparePoints(view);
 else           if (BurpPropertiesManager.getBurpPropertiesManager().getOldSerializationFile() != null && !BurpPropertiesManager.getBurpPropertiesManager().getOldSerializationFile().trim().isEmpty() && mode == 1)           comparePoints=getComparePoints(view);
          if (endpoints.length == 0)           JOptionPane.showMessageDialog(view,getNoEndpointsMessage(),"String_Node_Str",JOptionPane.WARNING_MESSAGE);
 else {
            if (comparePoints != null && comparePoints.length != 0)             endpoints=compareEndpoints(endpoints,comparePoints,view);
            fillEndpointsToTable(endpoints);
            for (            EndpointDecorator decorator : endpoints) {
              if (decorator != null) {
                Endpoint.Info endpoint=decorator.getEndpoint();
                String endpointPath=endpoint.getUrlPath();
                if (endpointPath.startsWith("String_Node_Str"))                 endpointPath=endpointPath.substring(1);
                endpointPath=endpointPath.replaceAll(GENERIC_INT_SEGMENT,"String_Node_Str");
                nodes.add(endpointPath);
                for (                Map.Entry<String,RouteParameter> parameter : endpoint.getParameters().entrySet())                 nodes.add(endpointPath + "String_Node_Str" + parameter.getKey()+ "String_Node_Str"+ parameter.getValue());
              }
            }
            String url=UrlDialog.show(view);
            if (url != null) {
              try {
                if (!url.substring(url.length() - 1).equals("String_Node_Str"))                 url=url + "String_Node_Str";
                for (                String node : nodes) {
                  URL nodeUrl=new URL(url + node);
                  callbacks.includeInScope(nodeUrl);
                  if (BurpPropertiesManager.getBurpPropertiesManager().getAutoSpider())                   callbacks.sendToSpider(nodeUrl);
                }
                buildRequests(view,callbacks,endpoints,url);
                completed=true;
              }
 catch (              MalformedURLException e1) {
                JOptionPane.showMessageDialog(view,"String_Node_Str","String_Node_Str",JOptionPane.WARNING_MESSAGE);
              }
              if (completed)               JOptionPane.showMessageDialog(view,getCompletedMessage());
            }
 else             makeReqs=false;
          }
          if (makeReqs) {
            if (BurpPropertiesManager.getBurpPropertiesManager().getAutoScan())             sendToScanner(callbacks,UrlDialog.show(view));
            RequestMakerThread rmt=new RequestMakerThread(callbacks,view);
            new Thread(rmt).start();
          }
        }
 catch (        Exception ex) {
          JOptionPane.showMessageDialog(view,"String_Node_Str");
        }
      }
 else       JOptionPane.showMessageDialog(view,"String_Node_Str","String_Node_Str",JOptionPane.WARNING_MESSAGE);
    }
  }
);
}

Fixed version (ground truth):
public EndpointsButton(final Component view,final IBurpExtenderCallbacks callbacks,int mode){
  this.mode=mode;
  setText(getButtonText());
  addActionListener(new java.awt.event.ActionListener(){
    @Override public void actionPerformed(    java.awt.event.ActionEvent e){
      boolean configured=false;
      if (mode == 0)       configured=ConfigurationDialogs.showSource(view,getDialogMode());
 else       if (mode == 1)       configured=ConfigurationDialogs.showJson(view,getDialogMode());
      boolean makeReqs=true;
      boolean completed=false;
      java.util.List<String> nodes=new ArrayList<>();
      if (configured) {
        if (BurpPropertiesManager.getBurpPropertiesManager().getConfigFile() != null)         callbacks.loadConfigFromJson(getBurpConfigAsString());
        try {
          EndpointDecorator[] endpoints=getEndpoints(view);
          EndpointDecorator[] comparePoints=null;
          if (BurpPropertiesManager.getBurpPropertiesManager().getOldSourceFolder() != null && !BurpPropertiesManager.getBurpPropertiesManager().getOldSourceFolder().trim().isEmpty() && mode == 0)           comparePoints=getComparePoints(view);
 else           if (BurpPropertiesManager.getBurpPropertiesManager().getOldSerializationFile() != null && !BurpPropertiesManager.getBurpPropertiesManager().getOldSerializationFile().trim().isEmpty() && mode == 1)           comparePoints=getComparePoints(view);
          if (endpoints.length == 0)           JOptionPane.showMessageDialog(view,getNoEndpointsMessage(),"String_Node_Str",JOptionPane.WARNING_MESSAGE);
 else {
            if (comparePoints != null && comparePoints.length != 0)             endpoints=compareEndpoints(endpoints,comparePoints,view);
            fillEndpointsToTable(endpoints);
            for (            EndpointDecorator decorator : endpoints) {
              if (decorator != null) {
                Endpoint.Info endpoint=decorator.getEndpoint();
                String endpointPath=endpoint.getUrlPath();
                if (endpointPath.startsWith("String_Node_Str"))                 endpointPath=endpointPath.substring(1);
                endpointPath=endpointPath.replaceAll(GENERIC_INT_SEGMENT,"String_Node_Str");
                nodes.add(endpointPath);
                for (                Map.Entry<String,RouteParameter> parameter : endpoint.getParameters().entrySet())                 nodes.add(endpointPath + "String_Node_Str" + parameter.getKey()+ "String_Node_Str"+ parameter.getValue());
              }
            }
            String url=UrlDialog.show(view);
            if (url != null) {
              try {
                if (!url.substring(url.length() - 1).equals("String_Node_Str"))                 url=url + "String_Node_Str";
                for (                String node : nodes) {
                  URL nodeUrl=new URL(url + node);
                  callbacks.includeInScope(nodeUrl);
                  if (BurpPropertiesManager.getBurpPropertiesManager().getAutoSpider())                   callbacks.sendToSpider(nodeUrl);
                }
                buildRequests(view,callbacks,endpoints,url);
                completed=true;
              }
 catch (              MalformedURLException e1) {
                JOptionPane.showMessageDialog(view,"String_Node_Str","String_Node_Str",JOptionPane.WARNING_MESSAGE);
              }
              if (completed)               JOptionPane.showMessageDialog(view,getCompletedMessage());
            }
 else             makeReqs=false;
          }
          if (makeReqs) {
            if (BurpPropertiesManager.getBurpPropertiesManager().getAutoScan())             sendToScanner(callbacks,UrlDialog.show(view));
            RequestMakerThread rmt=new RequestMakerThread(callbacks,view);
            new Thread(rmt).start();
          }
        }
 catch (        Exception ex) {
          JOptionPane.showMessageDialog(view,"String_Node_Str");
        }
      }
 else       JOptionPane.showMessageDialog(view,"String_Node_Str","String_Node_Str",JOptionPane.WARNING_MESSAGE);
    }
  }
);
}