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

[codeguru42]

Google Play Crash Report

Device: RCT6773W42B

Android Version: 5.0

App Version: 15 (Lite)

User Message: baseball card light stopped working

Stack Trace:

java.lang.RuntimeException: Unable to start activity ComponentInfo{bbct.android/bbct.android.lite.provider.LiteActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.Object.hashCode()' on a null object reference
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2491)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2564)
    at android.app.ActivityThread.access$800(ActivityThread.java:170)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1441)
    at android.os.Handler.dispatchMessage(Handler.java:111)
    at android.os.Looper.loop(Looper.java:194)
    at android.app.ActivityThread.main(ActivityThread.java:5576)
    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:955)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:750)
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.Object.hashCode()' on a null object reference
    at android.app.Activity.stopManagingCursor(Activity.java:2068)
    at bbct.android.common.activity.BaseballCardList.swapCursor(BaseballCardList.java:329)
    at bbct.android.common.activity.BaseballCardList.applyFilter(BaseballCardList.java:322)
    at bbct.android.common.activity.BaseballCardList.onCreateView(BaseballCardList.java:126)
    at android.support.v4.app.Fragment.performCreateView(Fragment.java:1500)
    at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:938)
    at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1115)
    at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:682)
    at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1478)
    at android.support.v4.app.FragmentActivity.onStart(FragmentActivity.java:570)
    at bbct.android.common.activity.MainActivity.onStart(MainActivity.java:61)
    at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1228)
    at android.app.Activity.performStart(Activity.java:6057)
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2447)
    ... 10 more

[codeguru42]

Google Play Crash Report

Device: 10 Viking Pro (RCT6303W87DK)

Android Version: Android 5.0

App Version: 17 (Lite)

User Message: none

Stack Trace:

 java.lang.RuntimeException: Unable to start activity ComponentInfo{bbct.android/bbct.android.lite.provider.LiteActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.Object.hashCode()' on a null object reference
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2491)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2555)
    at android.app.ActivityThread.access$800(ActivityThread.java:170)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1441)
    at android.os.Handler.dispatchMessage(Handler.java:111)
    at android.os.Looper.loop(Looper.java:194)
    at android.app.ActivityThread.main(ActivityThread.java:5567)
    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:955)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:750)
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.Object.hashCode()' on a null object reference
    at android.app.Activity.stopManagingCursor(Activity.java:2068)
    at bbct.android.common.activity.BaseballCardList.swapCursor(BaseballCardList.java:348)
    at bbct.android.common.activity.BaseballCardList.applyFilter(BaseballCardList.java:341)
    at bbct.android.common.activity.BaseballCardList.onCreateView(BaseballCardList.java:145)
    at android.support.v4.app.Fragment.performCreateView(Fragment.java:1962)
    at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1067)
    at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1248)
    at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:738)
    at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1613)
    at android.support.v4.app.FragmentController.execPendingActions(FragmentController.java:330)
    at android.support.v4.app.FragmentActivity.onStart(FragmentActivity.java:547)
    at bbct.android.common.activity.MainActivity.onStart(MainActivity.java:105)
    at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1228)
    at android.app.Activity.performStart(Activity.java:6057)
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2447)
    ... 10 more

[codeguru42]

Need to write tests for this. I will make a release anyway since the test suite in such a sorry state.