Program: 29992
Project: 29992
Buggy source:
/** 
 * Note: This method is not synchronized, we are assuming that the synchronization will happen at the Log Handler.publish( ) method.
 */
private String uniformLogFormat(LogRecord record){
  try {
    SimpleDateFormat dateFormatter=new SimpleDateFormat(getRecordDateFormat() != null ? getRecordDateFormat() : RFC_3339_DATE_FORMAT);
    StringBuilder recordBuffer=new StringBuilder(getRecordBeginMarker() != null ? getRecordBeginMarker() : RECORD_BEGIN_MARKER);
    date.setTime(record.getMillis());
    recordBuffer.append(dateFormatter.format(date));
    recordBuffer.append(getRecordFieldSeparator() != null ? getRecordFieldSeparator() : FIELD_SEPARATOR);
    recordBuffer.append(record.getLevel()).append(getRecordFieldSeparator() != null ? getRecordFieldSeparator() : FIELD_SEPARATOR);
    recordBuffer.append(getProductId()).append(getRecordFieldSeparator() != null ? getRecordFieldSeparator() : FIELD_SEPARATOR);
    recordBuffer.append(record.getLoggerName()).append(getRecordFieldSeparator() != null ? getRecordFieldSeparator() : FIELD_SEPARATOR);
    recordBuffer.append("String_Node_Str").append(NV_SEPARATOR);
    recordBuffer.append(record.getThreadID()).append(NVPAIR_SEPARATOR);
    recordBuffer.append("String_Node_Str").append(NV_SEPARATOR);
    recordBuffer.append(Thread.currentThread().getName());
    recordBuffer.append(NVPAIR_SEPARATOR);
    Level level=record.getLevel();
    if (LOG_SOURCE_IN_KEY_VALUE || (level.intValue() <= Level.FINE.intValue())) {
      recordBuffer.append("String_Node_Str").append(NV_SEPARATOR);
      recordBuffer.append(record.getSourceClassName());
      recordBuffer.append(NVPAIR_SEPARATOR);
      recordBuffer.append("String_Node_Str").append(NV_SEPARATOR);
      recordBuffer.append(record.getSourceMethodName());
      recordBuffer.append(NVPAIR_SEPARATOR);
    }
    if (RECORD_NUMBER_IN_KEY_VALUE) {
      recordBuffer.append("String_Node_Str").append(NV_SEPARATOR);
      recordBuffer.append(recordNumber++).append(NVPAIR_SEPARATOR);
    }
    if (_delegate != null) {
      _delegate.format(recordBuffer,level);
    }
    recordBuffer.append(getRecordFieldSeparator() != null ? getRecordFieldSeparator() : FIELD_SEPARATOR);
    String logMessage=record.getMessage();
    if (logMessage == null || logMessage.trim().equals("String_Node_Str")) {
      if (record.getThrown() != null) {
        StringWriter sw=new StringWriter();
        PrintWriter pw=new PrintWriter(sw);
        record.getThrown().printStackTrace(pw);
        pw.close();
        recordBuffer.append(sw.toString());
        sw.close();
      }
 else {
        logMessage="String_Node_Str";
        recordBuffer.append(logMessage);
      }
    }
 else {
      if (logMessage.indexOf("String_Node_Str") >= 0 && record.getParameters() != null) {
        logMessage=java.text.MessageFormat.format(logMessage,record.getParameters());
      }
 else {
        ResourceBundle rb=getResourceBundle(record.getLoggerName());
        if (rb != null) {
          try {
            logMessage=MessageFormat.format(rb.getString(logMessage),record.getParameters());
          }
 catch (          java.util.MissingResourceException e) {
          }
        }
      }
      recordBuffer.append(logMessage);
      if (record.getThrown() != null) {
        recordBuffer.append(LINE_SEPARATOR);
        StringWriter sw=new StringWriter();
        PrintWriter pw=new PrintWriter(sw);
        record.getThrown().printStackTrace(pw);
        pw.close();
        recordBuffer.append(sw.toString());
        sw.close();
      }
    }
    recordBuffer.append(getRecordEndMarker() != null ? getRecordEndMarker() : RECORD_END_MARKER).append(LINE_SEPARATOR).append(LINE_SEPARATOR);
    return recordBuffer.toString();
  }
 catch (  Exception ex) {
    new ErrorManager().error("String_Node_Str",ex,ErrorManager.FORMAT_FAILURE);
    return "String_Node_Str";
  }
}

Fixed version (ground truth):
/** 
 * Note: This method is not synchronized, we are assuming that the synchronization will happen at the Log Handler.publish( ) method.
 */
private String uniformLogFormat(LogRecord record){
  try {
    SimpleDateFormat dateFormatter=new SimpleDateFormat(getRecordDateFormat() != null ? getRecordDateFormat() : RFC_3339_DATE_FORMAT);
    StringBuilder recordBuffer=new StringBuilder(getRecordBeginMarker() != null ? getRecordBeginMarker() : RECORD_BEGIN_MARKER);
    date.setTime(record.getMillis());
    recordBuffer.append(dateFormatter.format(date));
    recordBuffer.append(getRecordFieldSeparator() != null ? getRecordFieldSeparator() : FIELD_SEPARATOR);
    recordBuffer.append(record.getLevel()).append(getRecordFieldSeparator() != null ? getRecordFieldSeparator() : FIELD_SEPARATOR);
    recordBuffer.append(getProductId()).append(getRecordFieldSeparator() != null ? getRecordFieldSeparator() : FIELD_SEPARATOR);
    recordBuffer.append(record.getLoggerName()).append(getRecordFieldSeparator() != null ? getRecordFieldSeparator() : FIELD_SEPARATOR);
    recordBuffer.append("String_Node_Str").append(NV_SEPARATOR);
    recordBuffer.append(record.getThreadID()).append(NVPAIR_SEPARATOR);
    recordBuffer.append("String_Node_Str").append(NV_SEPARATOR);
    recordBuffer.append(Thread.currentThread().getName());
    recordBuffer.append(NVPAIR_SEPARATOR);
    Level level=record.getLevel();
    if (LOG_SOURCE_IN_KEY_VALUE || (level.intValue() <= Level.FINE.intValue())) {
      recordBuffer.append("String_Node_Str").append(NV_SEPARATOR);
      recordBuffer.append(record.getSourceClassName());
      recordBuffer.append(NVPAIR_SEPARATOR);
      recordBuffer.append("String_Node_Str").append(NV_SEPARATOR);
      recordBuffer.append(record.getSourceMethodName());
      recordBuffer.append(NVPAIR_SEPARATOR);
    }
    if (RECORD_NUMBER_IN_KEY_VALUE) {
      recordBuffer.append("String_Node_Str").append(NV_SEPARATOR);
      recordBuffer.append(recordNumber++).append(NVPAIR_SEPARATOR);
    }
    if (_delegate != null) {
      _delegate.format(recordBuffer,level);
    }
    recordBuffer.append(getRecordFieldSeparator() != null ? getRecordFieldSeparator() : FIELD_SEPARATOR);
    String logMessage=record.getMessage();
    if (logMessage == null || logMessage.trim().equals("String_Node_Str")) {
      if (record.getThrown() != null) {
        StringWriter sw=new StringWriter();
        PrintWriter pw=new PrintWriter(sw);
        record.getThrown().printStackTrace(pw);
        pw.close();
        recordBuffer.append(sw.toString());
        sw.close();
      }
 else {
        logMessage="String_Node_Str";
        recordBuffer.append(logMessage);
      }
    }
 else {
      if (logMessage.indexOf("String_Node_Str") >= 0 && logMessage.contains("String_Node_Str") && record.getParameters() != null) {
        logMessage=java.text.MessageFormat.format(logMessage,record.getParameters());
      }
 else {
        ResourceBundle rb=getResourceBundle(record.getLoggerName());
        if (rb != null) {
          try {
            logMessage=MessageFormat.format(rb.getString(logMessage),record.getParameters());
          }
 catch (          java.util.MissingResourceException e) {
          }
        }
      }
      recordBuffer.append(logMessage);
      if (record.getThrown() != null) {
        recordBuffer.append(LINE_SEPARATOR);
        StringWriter sw=new StringWriter();
        PrintWriter pw=new PrintWriter(sw);
        record.getThrown().printStackTrace(pw);
        pw.close();
        recordBuffer.append(sw.toString());
        sw.close();
      }
    }
    recordBuffer.append(getRecordEndMarker() != null ? getRecordEndMarker() : RECORD_END_MARKER).append(LINE_SEPARATOR).append(LINE_SEPARATOR);
    return recordBuffer.toString();
  }
 catch (  Exception ex) {
    new ErrorManager().error("String_Node_Str",ex,ErrorManager.FORMAT_FAILURE);
    return "String_Node_Str";
  }
}