Ubuntu 16.04 in VirtualBox: very bad performance with VMSVGA

I am currently using Ubuntu 16.04 in VirtualBox version 6.0.14 (macOS host). It works perfectly well with the VBoxVGA graphics controller and 3D acceleration enabled. If I change the graphics controller to VMSVGA then performance becomes very bad. It significantly affects usability. If I change it to VBoxSVGA, it becomes literally unusably slow. VirtualBox 6.1…

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How to revert views

I had a working view. I have tried to modify it by removing the the relationships then it crashes. Now I am not able to edit the view. How to revert back the previous changes of view. Here is the error appearing in edit page of view Notice: Undefined index: field_product_overview in Drupal\views\Plugin\views\HandlerBase->getEntityType() (line 700…

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Javascript undefined field even though I can see it in developer tools (React & Electron)

I am trying to access contentWindow.PDFViewerApplication of a React iframe element as follows <iframe ref={ (it)=>{ console.log(it.contentWindow) console.log(it.contentWindow.PDFViewerApplication) } } src={reader+’?file=’} type=”application/pdf”/> and I can see the PDFViewerApplication in the console, but I can’t access the field. It logs undefined. Does anyone know the problem?

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When use Spy together with PowerMock together throws RuntimeException

When I use Spy annotation together with the PowerMock in my JUnit test case, it throws RuntimeException, but when I use Mock annotation together with the PowerMock, the test case is working fine. Anybody able to advise about my issue? This is my code @RunWith(PowerMockRunner.class) @PrepareForTest({DBConnectionPool.class}) @PowerMockIgnore(“javax.management.*”) public class TestAbcController { private static final Logger…

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