TimeoutException during running tests on Play2.5

I am running tests under Play Framework 2.5 with Sentry integrated.
Each time tests is running I have following exception:

java.util.concurrent.TimeoutException: null
at java.util.concurrent.FutureTask.get(FutureTask.java:205)
at com.getsentry.raven.event.EventBuilder$HostnameCache.updateCache(EventBuilder.java:620)
at com.getsentry.raven.event.EventBuilder$HostnameCache.getHostname(EventBuilder.java:606)
at com.getsentry.raven.event.EventBuilder.autoSetMissingValues(EventBuilder.java:90)
at com.getsentry.raven.event.EventBuilder.build(EventBuilder.java:360)
at com.getsentry.raven.logback.SentryAppender.buildEvent(SentryAppender.java:269)
at com.getsentry.raven.logback.SentryAppender.append(SentryAppender.java:178)
at com.getsentry.raven.logback.SentryAppender.append(SentryAppender.java:35)
at ch.qos.logback.core.AppenderBase.doAppend(AppenderBase.java:82)
at ch.qos.logback.core.spi.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:48)

Please suggest where is the problem, and how to fix it.