java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.Integer.intValue()' on a null object reference

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java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.Integer.intValue()' on a null object reference
at com.roughike.bottombar.BottomBar.unselectTab(BottomBar.java:1555)
at com.roughike.bottombar.BottomBar.updateItems(BottomBar.java:1358)
at com.roughike.bottombar.BottomBar.setItems(BottomBar.java:343)

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