getStackTrace

private String getStackTrace(Throwable throwable){
        StringWriter sw = new StringWriter();
        try(PrintWriter pw = new PrintWriter(sw)){
            throwable.printStackTrace(pw);
            return sw.toString();
        }
    }

            StringBuffer sb = new StringBuffer();
            sb.append(e.getMessage().concat("\n"));
            Arrays.stream(e.getStackTrace())
                    .filter(t->t.toString().contains("com.xxx"))
                    .forEach(t->sb.append(t.toString().concat("\n")));
            String errorStack = sb.toString();