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Attempt to invoke virtual method 'boolean java.lang.Boolean.booleanValue()' on a null object reference
java.lang.NullPointerException: Attempt to invoke virtual method 'boolean java.lang.Boolean.booleanValue()' on a null object reference	at com.buildware.widget.indeterm.IndeterminateCheckBox.onSaveInstanceState(IndeterminateCheckBox.java:218)	at android.view.View.dispatchSaveInstanceState(View.java:13550)	at android.view.ViewGroup.dispatchSaveInstanceState(ViewGroup.java:2865)	at android.view.ViewGroup.dispatchSaveInstanceState(ViewGroup.java:2865)	at android.view.ViewGroup.dispatchSaveInstanceState(ViewGroup.java:2865)	at android.view.ViewGroup.dispatchSaveInstanceState(ViewGroup.java:2865)	at android.view.View.saveHierarchyState(View.java:13533)	at android.support.v4.app.FragmentManagerImpl.saveFragmentViewState(FragmentManager.java:1850)	at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1180)	at android.support.v4.app.FragmentManagerImpl.removeFragment(FragmentManager.java:1387)	at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:758)	at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1677)	at android.support.v4.app.FragmentManagerImpl$1.run(FragmentManager.java:536)	at android.os.Handler.handleCallback(Handler.java:739)	at android.os.Handler.dispatchMessage(Handler.java:95)	at android.os.Looper.loop(Looper.java:135)	at android.app.ActivityThread.main(ActivityThread.java:5221)	at java.lang.reflect.Method.invoke(Native Method)	at java.lang.reflect.Method.invoke(Method.java:372)	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)