1037943 - java.lang.RuntimeException: Subclasses of PreferenceActivity must override isValidFragment(String) to verify that the Fragment class is valid!

Status: RESOLVED DUPLICATE of bug 992938

(Firefox for Android Graveyard :: Settings and Preferences, defect)

Description

[Douglas Crosher [:dougc]]

Testing a local build of Firefox for Android Beta 31. When Firefox is uninstalled and reinstalled, and when it is then started cold, it has been crashing with the follow Java error that appears to point to a programming error. The device is a Nexus 4 with Android 4.4.3.

E/GeckoAppShell(12397): >>> REPORTING UNCAUGHT EXCEPTION FROM THREAD 1 ("main")
E/GeckoAppShell(12397): java.lang.RuntimeException: Subclasses of PreferenceActivity must override isValidFragment(String) to verify that the Fragment class is valid! org.mozilla.gecko.preferences.GeckoPreferences has not checked if fragment org.mozilla.gecko.preferences.GeckoPreferenceFragment is valid.
E/GeckoAppShell(12397): 	at android.preference.PreferenceActivity.isValidFragment(PreferenceActivity.java:898)
E/GeckoAppShell(12397): 	at android.preference.PreferenceActivity.switchToHeaderInner(PreferenceActivity.java:1179)
E/GeckoAppShell(12397): 	at android.preference.PreferenceActivity.switchToHeader(PreferenceActivity.java:1199)
E/GeckoAppShell(12397): 	at android.preference.PreferenceActivity.onCreate(PreferenceActivity.java:545)
E/GeckoAppShell(12397): 	at org.mozilla.gecko.preferences.GeckoPreferences.onCreate(GeckoPreferences.java:117)
E/GeckoAppShell(12397): 	at android.app.Activity.performCreate(Activity.java:5231)
E/GeckoAppShell(12397): 	at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
E/GeckoAppShell(12397): 	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2148)
E/GeckoAppShell(12397): 	at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2233)
E/GeckoAppShell(12397): 	at android.app.ActivityThread.access$800(ActivityThread.java:135)
E/GeckoAppShell(12397): 	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
E/GeckoAppShell(12397): 	at android.os.Handler.dispatchMessage(Handler.java:102)
E/GeckoAppShell(12397): 	at android.os.Looper.loop(Looper.java:136)
E/GeckoAppShell(12397): 	at android.app.ActivityThread.main(ActivityThread.java:5001)
E/GeckoAppShell(12397): 	at java.lang.reflect.Method.invokeNative(Native Method)
E/GeckoAppShell(12397): 	at java.lang.reflect.Method.invoke(Method.java:515)
E/GeckoAppShell(12397): 	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
E/GeckoAppShell(12397): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
E/GeckoAppShell(12397): 	at dalvik.system.NativeStart.main(Native Method)

Comment 1

[Douglas Crosher [:dougc]]

Tapping the 'Settings' menu item also invokes this crash.

The official Beta builds do not seem to have this issue. Might be an issue with the DEBUG build or a difference in the build tools.

Comment 2

[Richard Newman [:rnewman]]

You need to build with a newer targetAPI. See Bug 992938.