in TeamCity.BitBucketIssues-server/src/main/java/jetbrains/buildServer/issueTracker/bitbucket/auth/BitBucketAuthenticator.java [26:33]
public BitBucketAuthenticator(@NotNull final Map<String, String > properties) {
final String authType = properties.get(PARAM_AUTH_TYPE);
if (AUTH_LOGIN_PASSWORD.equals(authType)) {
final String username = properties.get(PARAM_USERNAME);
final String password = properties.get(PARAM_PASSWORD);
myCredentials = new UsernamePasswordCredentials(username, password);
}
}