Java Get an exception while calling a web service but the Exception is empty

Question

I am calling a web service using the following code

public static ServResponse enGenderAndSentiment(String url, Tweet t) {

        HttpClient httpClient = new DefaultHttpClient();
        String responseBody = "";
        ServResponse holder = null;

        try {
            # calling a web service here
        } catch (Exception ex) {
            logger.debug("Exception while calling api for : " + t.getId());
            logger.debug(ex);
        } finally {
            httpClient.getConnectionManager().shutdown();
        }       

        return holder;

    }

An exception is thrown while executing the previous code and when I check the log file, I found the message Exception while calling ... but I the exception itself is not logged.

What could be the problem here? why the second logging statement is not printing anything in the log file?

Answer 1

Use logger.error(ex,ex); instead of logger.debug(ex); to log also the stacktrace (with optional cause exceptions)...