Android SDK crashing app after CSApp.close() called

[tannerpreiss]

If I create a new CSApp:

CSApp csApp = new CSApp.Builder(this, host, port, token)
            .useSSL(useSSL)
            .build();

with bad parameters (like an incorrect port), then call csApp.close(), the SDK will still continuously try to make the connection and eventually crash with:

03-28 11:59:27.180 22476-23341/com.ibm.mil.controller E/AndroidRuntime: FATAL EXCEPTION: cucumber-buffer-handler
                                                                        Process: com.ibm.mil.controller, PID: 22476
                                                                        rx.exceptions.OnErrorFailedException: Error occurred when trying to propagate error to Observer.onError
                                                                            at rx.observers.SafeSubscriber._onError(SafeSubscriber.java:201)
                                                                            at rx.observers.SafeSubscriber.onError(SafeSubscriber.java:111)
                                                                            at rx.internal.operators.OperatorSubscribeOn$1$1$1.onError(OperatorSubscribeOn.java:71)
                                                                            at rx.internal.operators.OperatorMerge$MergeSubscriber.reportError(OperatorMerge.java:239)
                                                                            at rx.internal.operators.OperatorMerge$MergeSubscriber.checkTerminate(OperatorMerge.java:774)
                                                                            at rx.internal.operators.OperatorMerge$MergeSubscriber.emitLoop(OperatorMerge.java:532)
                                                                            at rx.internal.operators.OperatorMerge$MergeSubscriber.emit(OperatorMerge.java:521)
                                                                            at rx.internal.operators.OperatorMerge$MergeSubscriber.onError(OperatorMerge.java:249)
                                                                            at rx.internal.operators.OperatorMap$1.onError(OperatorMap.java:49)
                                                                            at rx.internal.operators.OperatorCast$1.onError(OperatorCast.java:44)
                                                                            at rx.internal.operators.NotificationLite.accept(NotificationLite.java:147)
                                                                            at rx.subjects.SubjectSubscriptionManager$SubjectObserver.emitNext(SubjectSubscriptionManager.java:254)
                                                                            at rx.subjects.BehaviorSubject.onError(BehaviorSubject.java:141)
                                                                            at com.ibm.csync.internals.Command.handleResponse(Command.java:51)
                                                                            at com.ibm.csync.internals.Cucumbers.lambda$new$13(Cucumbers.java:186)
                                                                            at com.ibm.csync.internals.Cucumbers.access$lambda$4(Cucumbers.java)
                                                                            at com.ibm.csync.internals.Cucumbers$$Lambda$5.run(Unknown Source)
                                                                            at java.lang.Thread.run(Thread.java:818)
                                                                         Caused by: rx.exceptions.CompositeException: 2 exceptions occurred. 
                                                                            at rx.observers.SafeSubscriber._onError(SafeSubscriber.java:201) 
                                                                            at rx.observers.SafeSubscriber.onError(SafeSubscriber.java:111) 
                                                                            at rx.internal.operators.OperatorSubscribeOn$1$1$1.onError(OperatorSubscribeOn.java:71) 
                                                                            at rx.internal.operators.OperatorMerge$MergeSubscriber.reportError(OperatorMerge.java:239) 
                                                                            at rx.internal.operators.OperatorMerge$MergeSubscriber.checkTerminate(OperatorMerge.java:774) 
                                                                            at rx.internal.operators.OperatorMerge$MergeSubscriber.emitLoop(OperatorMerge.java:532) 
                                                                            at rx.internal.operators.OperatorMerge$MergeSubscriber.emit(OperatorMerge.java:521) 
                                                                            at rx.internal.operators.OperatorMerge$MergeSubscriber.onError(OperatorMerge.java:249) 
                                                                            at rx.internal.operators.OperatorMap$1.onError(OperatorMap.java:49) 
                                                                            at rx.internal.operators.OperatorCast$1.onError(OperatorCast.java:44) 
                                                                            at rx.internal.operators.NotificationLite.accept(NotificationLite.java:147) 
                                                                            at rx.subjects.SubjectSubscriptionManager$SubjectObserver.emitNext(SubjectSubscriptionManager.java:254) 
                                                                            at rx.subjects.BehaviorSubject.onError(BehaviorSubject.java:141) 
                                                                            at com.ibm.csync.internals.Command.handleResponse(Command.java:51) 
                                                                            at com.ibm.csync.internals.Cucumbers.lambda$new$13(Cucumbers.java:186) 
                                                                            at com.ibm.csync.internals.Cucumbers.access$lambda$4(Cucumbers.java) 
                                                                            at com.ibm.csync.internals.Cucumbers$$Lambda$5.run(Unknown Source) 
                                                                            at java.lang.Thread.run(Thread.java:818) 
                                                                         Caused by: rx.exceptions.CompositeException$CompositeExceptionCausalChain: Chain of Causes for CompositeException In Order Received =>
                                                                            at android.util.Log.getStackTraceString(Log.java:330)
                                                                            at com.android.internal.os.RuntimeInit.Clog_e(RuntimeInit.java:59)
                                                                            at com.android.internal.os.RuntimeInit.access$200(RuntimeInit.java:43)
                                                                            at com.android.internal.os.RuntimeInit$UncaughtHandler.uncaughtException(RuntimeInit.java:85)
                                                                            at java.lang.ThreadGroup.uncaughtException(ThreadGroup.java:693)
                                                                            at java.lang.ThreadGroup.uncaughtException(ThreadGroup.java:690)
                                                                         Caused by: com.ibm.csync.internals.response.ResponseException
                                                                            at com.ibm.csync.internals.Command.handleResponse(Command.java:51)
                                                                            at com.ibm.csync.internals.Cucumbers.lambda$new$13(Cucumbers.java:186)
                                                                            at com.ibm.csync.internals.Cucumbers.access$lambda$4(Cucumbers.java)
                                                                            at com.ibm.csync.internals.Cucumbers$$Lambda$5.run(Unknown Source)
                                                                            at java.lang.Thread.run(Thread.java:818)
                                                                         Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'rx.Observable com.ibm.csync.internals.Cucumbers.getAcls()' on a null object reference
                                                                            at com.ibm.csync.CSApp.refreshAcls(CSApp.java:217)
                                                                            at com.ibm.csync.CSApp.lambda$refreshAcls$8(CSApp.java:221)
                                                                            at com.ibm.csync.CSApp.access$lambda$8(CSApp.java)
                                                                            at com.ibm.csync.CSApp$$Lambda$15.call(Unknown Source)
                                                                            at rx.Observable$28.onError(Observable.java:7583)
                                                                            at rx.observers.SafeSubscriber._onError(SafeSubscriber.java:154)
                                                                            at rx.observers.SafeSubscriber.onError(SafeSubscriber.java:111)
                                                                            at rx.internal.operators.OperatorSubscribeOn$1$1$1.onError(OperatorSubscribeOn.java:71)
                                                                            at rx.internal.operators.OperatorMerge$MergeSubscriber.reportError(OperatorMerge.java:239)
                                                                            at rx.internal.operators.OperatorMerge$MergeSubscriber.checkTerminate(OperatorMerge.java:774)
                                                                            at rx.internal.operators.OperatorMerge$MergeSubscriber.emitLoop(OperatorMerge.java:532)
                                                                            at rx.internal.operators.OperatorMerge$MergeSubscriber.emit(OperatorMerge.java:521)
                                                                            at rx.internal.operators.OperatorMerge$MergeSubscriber.onError(OperatorMerge.java:249)
                                                                            at rx.internal.operators.OperatorMap$1.onError(OperatorMap.java:49)
                                                                            at rx.internal.operators.OperatorCast$1.onError(OperatorCast.java:44)
                                                                            at rx.internal.operators.NotificationLite.accept(NotificationLite.java:147)
                                                                            at rx.subjects.SubjectSubscriptionManager$SubjectObserver.emitNext(SubjectSubscriptionManager.java:254)
                                                                        	at rx.subjects.BehaviorSubject.onError(Behavi

I think calling CSApp.close() should stop attempting to make the CSync connection.