android捕获线程异常,android - 终结器引发的未捕获的异常：所有WebView方法必须在同一线程上调用。（预期的Looper）

我正在使用Admob SDK 18.1.1

并获得错误终结器抛出未捕获的异常

java.lang.RuntimeException: java.lang.Throwable: A WebView method was called on thread 'FinalizerDaemon'. All WebView methods must be called on the same thread. (Expected Looper Looper (main, tid 2) {f4f671a} called on null, FYI main Looper is Looper (main, tid 2) {f4f671a})

这个问题发生在admob SDK内部吗？

堆栈跟踪：

at android.webkit.WebView.checkThread(WebView.java:2732)

at android.webkit.WebView.evaluateJavascript(WebView.java:1128)

at com.google.android.gms.internal.ads.zzbbq.evaluateJavascript(com.google.android.gms:play-services-ads@@18.1.1:108)

at com.google.android.gms.internal.ads.zzbbq.zza(com.google.android.gms:play-services-ads@@18.1.1:144)

at com.google.android.gms.internal.ads.zzbbq.zzfk(com.google.android.gms:play-services-ads@@18.1.1:151)

at com.google.android.gms.internal.ads.zzbbq.zza(com.google.android.gms:play-services-ads@@18.1.1:190)

at com.google.android.gms.internal.ads.zzbbq.zza(com.google.android.gms:play-services-ads@@18.1.1:101)

at com.google.android.gms.internal.ads.zzbbq.zzav(com.google.android.gms:play-services-ads@@18.1.1:630)

at com.google.android.gms.internal.ads.zzbbq.onDetachedFromWindow(com.google.android.gms:play-services-ads@@18.1.1:434)

at android.view.View.dispatchDetachedFromWindow(View.java:18583)

at android.view.ViewGroup.dispatchDetachedFromWindow(ViewGroup.java:3793)

at android.view.ViewGroup.dispatchDetachedFromWindow(ViewGroup.java:3785)

at android.view.ViewGroup.removeViewInternal(ViewGroup.java:5375)

at android.view.ViewGroup.removeViewInternal(ViewGroup.java:5346)

at android.view.ViewGroup.removeView(ViewGroup.java:5277)

at com.google.android.gms.ads.internal.overlay.zze.onDestroy(com.google.android.gms:play-services-ads@@18.1.1:125)

at com.google.android.gms.internal.ads.zzbbq.destroy(com.google.android.gms:play-services-ads@@18.1.1:472)

at com.google.android.gms.internal.ads.zzbbo.destroy(com.google.android.gms:play-services-ads@@18.1.1:106)

at com.google.android.gms.internal.ads.zzbrc.finalize(com.google.android.gms:play-services-ads@@18.1.1:33)

at java.lang.Daemons$FinalizerDaemon.doFinalize(Daemons.java:256)

at java.lang.Daemons$FinalizerDaemon.runInternal(Daemons.java:243)

at java.lang.Daemons$Daemon.run(Daemons.java:109)

at java.lang.Thread.run(Thread.java:764)

Caused by: java.lang.Throwable: A WebView method was called on thread 'FinalizerDaemon'. All WebView methods must be called on the same thread. (Expected Looper Looper (main, tid 2) {f4f671a} called on null, FYI main Looper is Looper (main, tid 2) {f4f671a})

操作系统：Android 7.1，8.0，8.1，9.0正在获取相同的错误日志