Jan 29, 8:09 AM on app version 36 LGE LG G5 (h1), Android 8.0 java.lang.IllegalStateException: at rx.internal.schedulers.ScheduledAction.run (ScheduledAction.java:57) at java.util.concurrent.Executors$RunnableAdapter.call (Executors.java:457) at java.util.concurrent.FutureTask.run (FutureTask.java:266) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run (ScheduledThreadPoolExecutor.java:301) at java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1162) at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:636) at java.lang.Thread.run (Thread.java:764) Caused by: rx.exceptions.OnErrorNotImplementedException: at rx.internal.util.InternalObservableUtils$ErrorNotImplementedAction.call (InternalObservableUtils.java:386) at rx.internal.util.InternalObservableUtils$ErrorNotImplementedAction.call (InternalObservableUtils.java:383) at rx.internal.util.ActionSubscriber.onError (ActionSubscriber.java:44) at rx.observers.SafeSubscriber._onError (SafeSubscriber.java:153) at rx.observers.SafeSubscriber.onError (SafeSubscriber.java:115) at rx.subjects.PublishSubject$PublishSubjectProducer.onError (PublishSubject.java:315) at rx.subjects.PublishSubject$PublishSubjectState.onError (PublishSubject.java:230) at rx.subjects.PublishSubject.onError (PublishSubject.java:77) at org.xwiki.android.sync.rest.XWikiHttp$2.call (XWikiHttp.java:116) at org.xwiki.android.sync.rest.XWikiHttp$2.call (XWikiHttp.java:113) at rx.internal.util.ActionSubscriber.onError (ActionSubscriber.java:44) at rx.observers.SafeSubscriber._onError (SafeSubscriber.java:153) at rx.observers.SafeSubscriber.onError (SafeSubscriber.java:115) at rx.internal.operators.OperatorSubscribeOn$SubscribeOnSubscriber.onError (OperatorSubscribeOn.java:80) at retrofit2.adapter.rxjava.CallArbiter.emitError (CallArbiter.java:141) at retrofit2.adapter.rxjava.CallExecuteOnSubscribe.call (CallExecuteOnSubscribe.java:43) at retrofit2.adapter.rxjava.CallExecuteOnSubscribe.call (CallExecuteOnSubscribe.java:24) at rx.Observable.unsafeSubscribe (Observable.java:10256) at rx.internal.operators.OperatorSubscribeOn$SubscribeOnSubscriber.call (OperatorSubscribeOn.java:100) at rx.internal.schedulers.ScheduledAction.run (ScheduledAction.java:55) Caused by: javax.net.ssl.SSLHandshakeException: at com.android.org.conscrypt.NativeCrypto.SSL_do_handshake (Native Method) at com.android.org.conscrypt.OpenSSLSocketImpl.startHandshake (OpenSSLSocketImpl.java:351) at okhttp3.internal.connection.RealConnection.connectTls (RealConnection.java:281) at okhttp3.internal.connection.RealConnection.establishProtocol (RealConnection.java:251) at okhttp3.internal.connection.RealConnection.connect (RealConnection.java:151) at okhttp3.internal.connection.StreamAllocation.findConnection (StreamAllocation.java:192) at okhttp3.internal.connection.StreamAllocation.findHealthyConnection (StreamAllocation.java:121) at okhttp3.internal.connection.StreamAllocation.newStream (StreamAllocation.java:100) at okhttp3.internal.connection.ConnectInterceptor.intercept (ConnectInterceptor.java:42) at okhttp3.internal.http.RealInterceptorChain.proceed (RealInterceptorChain.java:92) at okhttp3.internal.http.RealInterceptorChain.proceed (RealInterceptorChain.java:67) at okhttp3.internal.cache.CacheInterceptor.intercept (CacheInterceptor.java:93) at okhttp3.internal.http.RealInterceptorChain.proceed (RealInterceptorChain.java:92) at okhttp3.internal.http.RealInterceptorChain.proceed (RealInterceptorChain.java:67) at okhttp3.internal.http.BridgeInterceptor.intercept (BridgeInterceptor.java:93) at okhttp3.internal.http.RealInterceptorChain.proceed (RealInterceptorChain.java:92) at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept (RetryAndFollowUpInterceptor.java:120) at okhttp3.internal.http.RealInterceptorChain.proceed (RealInterceptorChain.java:92) at okhttp3.internal.http.RealInterceptorChain.proceed (RealInterceptorChain.java:67) at okhttp3.logging.HttpLoggingInterceptor.intercept (HttpLoggingInterceptor.java:211) at okhttp3.internal.http.RealInterceptorChain.proceed (RealInterceptorChain.java:92) at okhttp3.internal.http.RealInterceptorChain.proceed (RealInterceptorChain.java:67) at org.xwiki.android.sync.rest.XWikiInterceptor.intercept (XWikiInterceptor.java:83) at okhttp3.internal.http.RealInterceptorChain.proceed (RealInterceptorChain.java:92) at okhttp3.internal.http.RealInterceptorChain.proceed (RealInterceptorChain.java:67) at okhttp3.RealCall.getResponseWithInterceptorChain (RealCall.java:185) at okhttp3.RealCall.execute (RealCall.java:69) at retrofit2.OkHttpCall.execute (OkHttpCall.java:174) at retrofit2.adapter.rxjava.CallExecuteOnSubscribe.call (CallExecuteOnSubscribe.java:40)