Program: 21268
Project: 21268
Buggy source:
public void onUnrarEvent(int id,UnrarWrapper wrapper){
switch (id) {
case JDUnrarConstants.WRAPPER_EXTRACTION_FAILED:
    if (wrapper.getException() != null) {
      wrapper.getDownloadLink().getLinkStatus().setStatusText("String_Node_Str" + wrapper.getException().getMessage());
      wrapper.getDownloadLink().requestGuiUpdate();
    }
 else {
      wrapper.getDownloadLink().getLinkStatus().setStatusText("String_Node_Str");
      wrapper.getDownloadLink().requestGuiUpdate();
    }
  this.onFinished(wrapper);
break;
case JDUnrarConstants.WRAPPER_FAILED_PASSWORD:
wrapper.getDownloadLink().getLinkStatus().setStatusText("String_Node_Str");
wrapper.getDownloadLink().requestGuiUpdate();
this.onFinished(wrapper);
break;
case JDUnrarConstants.WRAPPER_CRACK_PASSWORD:
wrapper.getDownloadLink().getLinkStatus().setStatusText("String_Node_Str");
wrapper.getDownloadLink().requestGuiUpdate();
break;
case JDUnrarConstants.WRAPPER_NEW_STATUS:
break;
case JDUnrarConstants.WRAPPER_START_OPEN_ARCHIVE:
wrapper.getDownloadLink().getLinkStatus().setStatusText("String_Node_Str");
wrapper.getDownloadLink().requestGuiUpdate();
break;
case JDUnrarConstants.WRAPPER_OPEN_ARCHIVE_SUCCESS:
break;
case JDUnrarConstants.WRAPPER_PASSWORD_FOUND:
wrapper.getDownloadLink().getLinkStatus().setStatusText("String_Node_Str");
wrapper.getDownloadLink().requestGuiUpdate();
break;
case JDUnrarConstants.WRAPPER_ON_PROGRESS:
wrapper.getDownloadLink().getLinkStatus().setStatusText("String_Node_Str");
if (wrapper.getDownloadLink().getPluginProgress() == null) {
wrapper.getDownloadLink().setPluginProgress(new PluginProgress(wrapper.getExtractedSize(),wrapper.getTotalSize(),Color.YELLOW.darker()));
}
 else {
wrapper.getDownloadLink().getPluginProgress().setCurrent(wrapper.getExtractedSize());
}
wrapper.getDownloadLink().requestGuiUpdate();
break;
case JDUnrarConstants.WRAPPER_START_EXTRACTION:
break;
case JDUnrarConstants.WRAPPER_STARTED:
break;
case JDUnrarConstants.WRAPPER_EXTRACTION_FAILED_CRC:
wrapper.getDownloadLink().getLinkStatus().setStatusText("String_Node_Str");
wrapper.getDownloadLink().reset();
wrapper.getDownloadLink().requestGuiUpdate();
this.onFinished(wrapper);
break;
case JDUnrarConstants.WRAPPER_PROGRESS_SINGLE_FILE_FINISHED:
break;
case JDUnrarConstants.WRAPPER_FINISHED_SUCCESSFULL:
wrapper.getDownloadLink().getLinkStatus().setStatusText("String_Node_Str");
wrapper.getDownloadLink().requestGuiUpdate();
this.onFinished(wrapper);
break;
default :
System.out.println("String_Node_Str");
}
}

Fixed version (ground truth):
public void onUnrarEvent(int id,UnrarWrapper wrapper){
switch (id) {
case JDUnrarConstants.WRAPPER_EXTRACTION_FAILED:
    if (wrapper.getException() != null) {
      wrapper.getDownloadLink().getLinkStatus().setErrorMessage("String_Node_Str" + wrapper.getException().getMessage());
      wrapper.getDownloadLink().requestGuiUpdate();
    }
 else {
      wrapper.getDownloadLink().getLinkStatus().setErrorMessage("String_Node_Str");
      wrapper.getDownloadLink().requestGuiUpdate();
    }
  this.onFinished(wrapper);
break;
case JDUnrarConstants.WRAPPER_FAILED_PASSWORD:
wrapper.getDownloadLink().getLinkStatus().setErrorMessage("String_Node_Str");
wrapper.getDownloadLink().requestGuiUpdate();
this.onFinished(wrapper);
break;
case JDUnrarConstants.WRAPPER_CRACK_PASSWORD:
wrapper.getDownloadLink().getLinkStatus().setStatusText("String_Node_Str");
wrapper.getDownloadLink().requestGuiUpdate();
break;
case JDUnrarConstants.WRAPPER_NEW_STATUS:
break;
case JDUnrarConstants.WRAPPER_START_OPEN_ARCHIVE:
wrapper.getDownloadLink().getLinkStatus().setStatusText("String_Node_Str");
wrapper.getDownloadLink().requestGuiUpdate();
break;
case JDUnrarConstants.WRAPPER_OPEN_ARCHIVE_SUCCESS:
break;
case JDUnrarConstants.WRAPPER_PASSWORD_FOUND:
wrapper.getDownloadLink().getLinkStatus().setStatusText("String_Node_Str");
wrapper.getDownloadLink().requestGuiUpdate();
break;
case JDUnrarConstants.WRAPPER_ON_PROGRESS:
wrapper.getDownloadLink().getLinkStatus().setStatusText("String_Node_Str");
if (wrapper.getDownloadLink().getPluginProgress() == null) {
wrapper.getDownloadLink().setPluginProgress(new PluginProgress(wrapper.getExtractedSize(),wrapper.getTotalSize(),Color.YELLOW.darker()));
}
 else {
wrapper.getDownloadLink().getPluginProgress().setCurrent(wrapper.getExtractedSize());
}
wrapper.getDownloadLink().requestGuiUpdate();
break;
case JDUnrarConstants.WRAPPER_START_EXTRACTION:
break;
case JDUnrarConstants.WRAPPER_STARTED:
break;
case JDUnrarConstants.WRAPPER_EXTRACTION_FAILED_CRC:
ArrayList<DownloadLink> list=this.getArchiveList(wrapper.getDownloadLink());
DownloadLink crc=list.size() >= wrapper.getCurrentVolume() ? list.get(wrapper.getCurrentVolume()) : null;
wrapper.getDownloadLink().getLinkStatus().setErrorMessage("String_Node_Str");
wrapper.getDownloadLink().requestGuiUpdate();
if (crc != null) {
crc.getLinkStatus().removeStatus(LinkStatus.FINISHED);
crc.getLinkStatus().addStatus(LinkStatus.ERROR_DOWNLOAD_FAILED);
crc.getLinkStatus().setErrorMessage("String_Node_Str");
crc.requestGuiUpdate();
}
 else {
for (DownloadLink link : list) {
if (link == null) continue;
link.getLinkStatus().setErrorMessage("String_Node_Str");
link.requestGuiUpdate();
}
}
this.onFinished(wrapper);
break;
case JDUnrarConstants.WRAPPER_PROGRESS_SINGLE_FILE_FINISHED:
break;
case JDUnrarConstants.WRAPPER_FINISHED_SUCCESSFULL:
list=this.getArchiveList(wrapper.getDownloadLink());
for (DownloadLink link : list) {
if (link == null) continue;
link.getLinkStatus().setStatusText("String_Node_Str");
link.requestGuiUpdate();
}
this.onFinished(wrapper);
break;
default :
System.out.println("String_Node_Str");
}
}