carsh occurred about webview

[ye yuan]

Hi, 

    When I perform monkey testing, this crash occurs. I use webview to access web pages in apk.

    Do we have any idea about this？

org.chromium.base.JniAndroid$UncaughtExceptionException: Native stack trace:
#00 pc 0x000000000538c927 /product/app/webview/webview.apk (offset 0xcf0000)
#01 pc 0x000000000537f5d3 /product/app/webview/webview.apk (offset 0xcf0000)
#02 pc 0x00000000069ef9af /product/app/webview/webview.apk (offset 0xcf0000)
#03 pc 0x0000000003f2dc8f /product/app/webview/webview.apk (offset 0xcf0000)
#04 pc 0x0000000003d28e53 /product/app/webview/webview.apk (offset 0xcf0000)
#05 pc 0x0000000003ccaf23 /product/app/webview/webview.apk (offset 0xcf0000)
#06 pc 0x00000000034e52d3 /product/app/webview/webview.apk (offset 0xcf0000)
#07 pc 0x000000000568ad33 /product/app/webview/webview.apk (offset 0xcf0000)
#08 pc 0x000000000568f3cf /product/app/webview/webview.apk (offset 0xcf0000)
#09 pc 0x000000000568bfdb /product/app/webview/webview.apk (offset 0xcf0000)
#10 pc 0x00000000059dbe4f /product/app/webview/webview.apk (offset 0xcf0000)
#11 pc 0x00000000059dc2b7 /product/app/webview/webview.apk (offset 0xcf0000)
#12 pc 0x0000000005325b0b /product/app/webview/webview.apk (offset 0xcf0000)
#13 pc 0x000000000533cef3 /product/app/webview/webview.apk (offset 0xcf0000)
#14 pc 0x000000000533cb1f /product/app/webview/webview.apk (offset 0xcf0000)
#15 pc 0x000000000537a03f /product/app/webview/webview.apk (offset 0xcf0000)
#16 pc 0x0000000005379feb /product/app/webview/webview.apk (offset 0xcf0000)
#17 pc 0x0000000005379d27 /product/app/webview/webview.apk (offset 0xcf0000)
#18 pc 0x000000000000ffc3 /system/lib64/libutils.so
#19 pc 0x000000000000f7f3 /system/lib64/libutils.so
#20 pc 0x0000000000131947 /system/lib64/libandroid_runtime.so

    at org.chromium.base.JniAndroid.handleException(chromium-SystemWebView.apk-stable-677808101:21)
    at android.os.MessageQueue.nativePollOnce(Native Method)
    at android.os.MessageQueue.next(MessageQueue.java:359)
    at android.os.Looper.loopOnce(Looper.java:188)
    at android.os.Looper.loop(Looper.java:345)
    at android.app.ActivityThread.main(ActivityThread.java:8919)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:575)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1013)
Caused by: java.lang.IllegalStateException: Drag shadow dimensions must be positive
    at android.view.View.startDragAndDrop(View.java:29271)
    at android.view.View.startDragAndDrop(View.java:29199)
    at org.chromium.ui.base.ViewAndroidDelegate.startDragAndDrop(chromium-SystemWebView.apk-stable-677808101:819)
    ... 8 more

[Torne (Richard Coles)]

It doesn't look like we have an existing bug for this, but the same crash happening in other non-webview-related drag and drop implementations seems fairly common as some kind of rare timing/race issue - it's possible that WebView's drag and drop implementation also has an issue like that?

It looks like you're using the preinstalled AOSP webview on the device you're testing on - where did that specific WebView binary come from? Is it something you/your organisation built, or one of the prebuilt binaries we provide?

In any case, it's probably worth filing a bug at https://issues.chromium.org/issues/new?component=1456456&template=1923373 with all the details you can.

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