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junit.framework.AssertionFailedError: Must use or extend XWalkApplication at junit.framework.Assert.fail(Assert.java:50) at org.xwalk.core.XWalkCoreWrapper.findSharedCore(XWalkCoreWrapper.java:146) at org.xwalk.core.XWalkCoreWrapper.check(XWalkCoreWrapper.java:58) at org.xwalk.core.XWalkCoreWrapper.check(XWalkCoreWrapper.java:51) at org.xwalk.core.XWalkActivity.onStart(XWalkActivity.java:84) at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1171) at android.app.Activity.performStart(Activity.java:5241) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2157) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2233) at android.app.ActivityThread.access$800(ActivityThread.java:135) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:136) at android.app.ActivityThread.main(ActivityThread.java:5001) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)