Appium UiAutomator2 StackOverFlow from infinite recursion

[dicksonch]

The problem

Inspecting elements using Appium inspector/finding elements with xpath/ clicking elements causes Appium to fall into infinite recursion (specifically, appium-uiautomator2-server). However, finding elements by class name and by id works fine. Appium only exhibits this behaviour with a particular page in the page, the other pages function normally. UiAutomator1 was used as well and behaves normally.

Environment

• Appium version (or git revision) that exhibits the issue: Appium 1.12.1 UiAutomator2
• Desktop OS/version used to run Appium: Windows 10
• Mobile platform/version under test: Android 9
• Real device or emulator/simulator: Real device ( Huawei, Samsung)
• Appium CLI or Appium.app|exe: Appium.exe

Details

The stack seems to suggest that AccessibilityNodeInfoHelpers.getVisibleBounds will cause an infinite loop of UiAutomationElement. -> UiAutomationElement.getOrCreateElement -> UiAutomationElement.buildChildren. until it causes a StackOverflowError.

The fact that elements can be found via id but as soon as I try to do anything to do with display like .click(), the error occurs seems to suggest the same thing.

Fatal error while handling action in: io.appium.uiautomator2.handler.Source
java.lang.StackOverflowError: stack size 1041KB
at android.app.WindowConfiguration.setAppBounds(WindowConfiguration.java:332)
at android.app.WindowConfiguration.setAppBounds(WindowConfiguration.java:319)
at android.app.WindowConfiguration.setTo(WindowConfiguration.java:388)
at android.content.res.Configuration.setTo(Configuration.java:1136)
at android.content.res.Configuration.(Configuration.java:1091)
at android.view.DisplayAdjustments.(DisplayAdjustments.java:36)
at android.view.Display.(Display.java:444)
at android.view.Display.(Display.java:434)
at android.hardware.display.DisplayManagerGlobal.getCompatibleDisplay (DisplayManagerGlobal.java:276)
at android.app.ResourcesManager.getAdjustedDisplay(ResourcesManager.java:328)
at android.app.ContextImpl.getDisplay(ContextImpl.java:2441)
at android.view.WindowManagerImpl.getDefaultDisplay(WindowManagerImpl.java:147)
at androidx.test.uiautomator.UiDevice.getDefaultDisplay(UiDevice.java:1090)
at androidx.test.uiautomator.UiDevice.getDisplayWidth(UiDevice.java:524)
at io.appium.uiautomator2.core.AccessibilityNodeInfoHelpers.getVisibleBounds (AccessibilityNodeInfoHelpers.java:96)
at io.appium.uiautomator2.model.UiAutomationElement. (UiAutomationElement.java:85)
at io.appium.uiautomator2.model.UiAutomationElement.getOrCreateElement (UiAutomationElement.java:127)
at io.appium.uiautomator2.model.UiAutomationElement.buildChildren (UiAutomationElement.java:165)
at io.appium.uiautomator2.model.UiAutomationElement. (UiAutomationElement.java:89)
at io.appium.uiautomator2.model.UiAutomationElement.getOrCreateElement (UiAutomationElement.java:127)
at io.appium.uiautomator2.model.UiAutomationElement.buildChildren (UiAutomationElement.java:165)
at io.appium.uiautomator2.model.UiAutomationElement. (UiAutomationElement.java:89)
at io.appium.uiautomator2.model.UiAutomationElement.getOrCreateElement (UiAutomationElement.java:127)
at io.appium.uiautomator2.model.UiAutomationElement.buildChildren (UiAutomationElement.java:165)
at io.appium.uiautomator2.model.UiAutomationElement. (UiAutomationElement.java:89)

Link to Appium logs

Appium Log
Line 157 shows the infinite recursion.
adb logcat

Both of the logs show the StackOverFlow Error that is very likely the cause of the issue.
Please, any hint is greatly appreciated.

[mykola-mokhnach]

This looks more like an Android/Application issue, however we could add a workaround and hard-limit the recursion depth for this method

[mykola-mokhnach]

The workaround has been published in appium@beta

[lock]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.