at se.emilsjolander.stickylistheaders.StickyListHeadersListView.onSaveInstanceState (StickyListHeadersListView.java:1098)
at android.view.View.dispatchSaveInstanceState (View.java:18774)
at android.view.ViewGroup.dispatchSaveInstanceState (ViewGroup.java:3905)
at android.view.View.saveHierarchyState (View.java:18757)
at android.support.v4.app.FragmentManagerImpl.saveFragmentViewState (FragmentManager.java:1758)
at android.support.v4.app.FragmentManagerImpl.saveFragmentBasicState (FragmentManager.java:1778)
at android.support.v4.app.FragmentManagerImpl.saveFragmentInstanceState (FragmentManager.java:691)
at android.support.v4.app.FragmentStatePagerAdapter.destroyItem (FragmentStatePagerAdapter.java:136)
at android.support.v4.view.ViewPager.populate (ViewPager.java:1145)
at android.support.v4.view.ViewPager.setCurrentItemInternal (ViewPager.java:608)
at android.support.v4.view.ViewPager.setCurrentItemInternal (ViewPager.java:570)
at android.support.v4.view.ViewPager.setCurrentItem (ViewPager.java:551)
at jp.redmine.redmineclient.activity.TabActivity$2.onTabSelected (TabActivity.java:71)
at android.support.v7.app.WindowDecorActionBar.selectTab (WindowDecorActionBar.java:628)
at android.support.v7.app.WindowDecorActionBar$TabImpl.select (WindowDecorActionBar.java:1213)
at android.support.v7.widget.ScrollingTabContainerView$TabClickListener.onClick (ScrollingTabContainerView.java:574)
at android.view.View.performClick (View.java:6891)
at android.view.View$PerformClick.run (View.java:26083)
at android.os.Handler.handleCallback (Handler.java:789)
at android.os.Handler.dispatchMessage (Handler.java:98)
at android.os.Looper.loop (Looper.java:164)
at android.app.ActivityThread.main (ActivityThread.java:6938)
at java.lang.reflect.Method.invoke (Native Method)
at com.android.internal.os.Zygote$MethodAndArgsCaller.run (Zygote.java:327)
at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1374)
java.lang.IllegalStateException: