If you get the following exception when using Sonar for Bitbucket Server when using a plug-in version < 1.5.0 together with SonarQube >= 5.2

ThrowableExceptionMapper Uncaught exception thrown by REST service: JSONObject["pages"]

then you have to upgrade to a plug-in version >= 1.5.0 because older versions are not compatible with SonarQube versions >= 5.2.