Twitter4j throws 401 authentication errors

I am getting the following authentication error when trying to access Twitter using my own credentials. Can someone tell what the problem could be?

401:Authentication credentials (https://dev.twitter.com/docs/auth) were missing or incorrect. Ensure that you have set valid conumer key/secret, access token/secret, and the system clock in in sync.

Tests run: 6, Failures: 0, Errors: 5, Skipped: 0, Time elapsed: 4.953 sec <<< FAILURE!
showStatusTes开发者_开发问答t(com.mycompany.twitter.test.TwitterClientTest)  Time elapsed: 0.672 sec  <<< ERROR!
401:Authentication credentials (https://dev.twitter.com/docs/auth) were missing or incorrect. Ensure that you have set valid conumer key/secret, access token/secret, and the system clock in in sync.
TwitterException{exceptionCode=[6b80c41c-1bd1da85], statusCode=401, retryAfter=-1, rateLimitStatus=null, featureSpecificRateLimitStatus=null, version=2.2.5-SNAPSHOT(build: 5f9c44cd0e0c1972f8d17653a226b9b6a3392ac2)}
    at twitter4j.internal.http.HttpClientImpl.request(HttpClientImpl.java:185)
    at twitter4j.internal.http.HttpClientWrapper.request(HttpClientWrapper.java:65)
    at twitter4j.internal.http.HttpClientWrapper.get(HttpClientWrapper.java:93)
    at twitter4j.TwitterImpl.get(TwitterImpl.java:1869)
    at twitter4j.TwitterImpl.showStatus(TwitterImpl.java:445)

401:Authentication credentials (https://dev.twitter.com/docs/auth) were missing or incorrect. Ensure that you have set valid conumer key/secret, access token/secret, and the system clock in in sync.

The above exception was solved by setting the appropriate system clock in sync.

Have you supplied correct consumer keys and access tokens in the application..? Read here