Program: 127939
Project: 127939
Buggy source:
public void validateRegistration(){
  if (isProductRegistered()) {
    return;
  }
  URL registURL=null;
  try {
    IBrandingService brandingService=(IBrandingService)GlobalServiceRegister.getDefault().getService(IBrandingService.class);
    String uniqueId=DefaultTokenCollector.calcUniqueId();
    uniqueId=uniqueId.replace("String_Node_Str","String_Node_Str");
    uniqueId=uniqueId.replace("String_Node_Str","String_Node_Str");
    uniqueId=uniqueId.replace("String_Node_Str","String_Node_Str");
    uniqueId=uniqueId.replace("String_Node_Str","String_Node_Str");
    uniqueId=uniqueId.replace("String_Node_Str","String_Node_Str");
    uniqueId=uniqueId.replace("String_Node_Str","String_Node_Str");
    uniqueId=uniqueId.replace("String_Node_Str","String_Node_Str");
    uniqueId=uniqueId.replace("String_Node_Str","String_Node_Str");
    uniqueId=uniqueId.replace("String_Node_Str","String_Node_Str");
    uniqueId=uniqueId.replace("String_Node_Str","String_Node_Str");
    registURL=new URL("String_Node_Str" + uniqueId + "String_Node_Str"+ brandingService.getAcronym());
    PlatformUI.getWorkbench().getBrowserSupport().getExternalBrowser().openURL(registURL);
  }
 catch (  PartInitException e) {
    try {
      Runtime.getRuntime().exec("String_Node_Str" + registURL.toString());
    }
 catch (    IOException e2) {
      if (PlatformUI.getWorkbench().getBrowserSupport().isInternalWebBrowserAvailable()) {
        IWebBrowser browser;
        try {
          browser=PlatformUI.getWorkbench().getBrowserSupport().createBrowser("String_Node_Str");
          browser.openURL(registURL);
        }
 catch (        PartInitException e1) {
          ExceptionHandler.process(e);
        }
      }
 else {
        ExceptionHandler.process(e);
      }
    }
  }
catch (  MalformedURLException e) {
    ExceptionHandler.process(e);
  }
}

Fixed version (ground truth):
public void validateRegistration(){
  IBrandingService brandingService=(IBrandingService)GlobalServiceRegister.getDefault().getService(IBrandingService.class);
  if (!brandingService.getBrandingConfiguration().isUseProductRegistration()) {
    return;
  }
  ConnectionUserPerReader read=ConnectionUserPerReader.getInstance();
  boolean install_done=read.isInstallDone();
  if (install_done) {
    return;
  }
  read.setInstallDone();
  URL registURL=null;
  try {
    String uniqueId=DefaultTokenCollector.calcUniqueId();
    uniqueId=uniqueId.replace("String_Node_Str","String_Node_Str");
    uniqueId=uniqueId.replace("String_Node_Str","String_Node_Str");
    uniqueId=uniqueId.replace("String_Node_Str","String_Node_Str");
    uniqueId=uniqueId.replace("String_Node_Str","String_Node_Str");
    uniqueId=uniqueId.replace("String_Node_Str","String_Node_Str");
    uniqueId=uniqueId.replace("String_Node_Str","String_Node_Str");
    uniqueId=uniqueId.replace("String_Node_Str","String_Node_Str");
    uniqueId=uniqueId.replace("String_Node_Str","String_Node_Str");
    uniqueId=uniqueId.replace("String_Node_Str","String_Node_Str");
    uniqueId=uniqueId.replace("String_Node_Str","String_Node_Str");
    registURL=new URL("String_Node_Str" + uniqueId + "String_Node_Str"+ brandingService.getAcronym());
    PlatformUI.getWorkbench().getBrowserSupport().getExternalBrowser().openURL(registURL);
  }
 catch (  PartInitException e) {
    try {
      Runtime.getRuntime().exec("String_Node_Str" + registURL.toString());
    }
 catch (    IOException e2) {
      if (PlatformUI.getWorkbench().getBrowserSupport().isInternalWebBrowserAvailable()) {
        IWebBrowser browser;
        try {
          browser=PlatformUI.getWorkbench().getBrowserSupport().createBrowser("String_Node_Str");
          browser.openURL(registURL);
        }
 catch (        PartInitException e1) {
          ExceptionHandler.process(e);
        }
      }
 else {
        ExceptionHandler.process(e);
      }
    }
  }
catch (  MalformedURLException e) {
    ExceptionHandler.process(e);
  }
}