55469 2011-03-01 07:46:45 -0800 REGRESSION (r79863): Lots of dom/html/level2/html/HTMLFrameElement*.html tests crashing in FrameView::paintOverhangAreas in WebKit2 2011-03-03 09:57:38 -0800 1 1 1 Unclassified WebKit Tools / Tests 528+ (Nightly build) All All RESOLVED FIXED http://build.webkit.org/results/Windows%207%20Release%20(WebKit2%20Tests)/r79994%20(3567)/CrashLog_0b08_2011-03-01_06-13-18-438.txt InRadar, LayoutTestFailure, PlatformOnly, Regression P2 Normal --- 1 aroben webkit-unassigned bdakin sam oldest_to_newest 359890 0 aroben 2011-03-01 07:46:45 -0800 Lots of dom/html/level2/html/HTMLFrameElement*.html tests are crashing in FrameView::paintOverhangAreas in WebKit2 on Windows. See the URL for a crash log. You can find more crash logs here: http://build.webkit.org/results/Windows%207%20Release%20(WebKit2%20Tests)/r79994%20(3567)/ (Note that these crashes are being reported as hangs due to bug 44121.) I'm not sure when the crashes started. Buildbot says around r79865, but that doesn't really make sense to me. 359892 1 aroben 2011-03-01 07:47:14 -0800 <rdar://problem/9068539> 359932 2 aroben 2011-03-01 09:16:35 -0800 Looks like Mac is crashing, too: http://build.webkit.org/results/SnowLeopard%20Intel%20Release%20(WebKit2%20Tests)/r80001%20(9140)/results.html 360315 3 aroben 2011-03-01 15:38:59 -0800 Alexey says this started happening over the weekend. 360954 4 sam 2011-03-02 12:01:00 -0800 It seems like r79863, is the likely cause of this, specifically the change in InjectedBundlePage.cpp (http://trac.webkit.org/changeset/79863/trunk/Tools/WebKitTestRunner/InjectedBundle/InjectedBundlePage.cpp). It seems that we are calling out to WebKit in an inconsistent state, so that when we go to paint a FrameView, it is no longer in the tree. We could add a null check for the page, but I think that would just be papering over the issue. 360962 5 aroben 2011-03-02 12:04:33 -0800 I wonder why WebKit1 doesn't have this problem? I placed the WKBundlePageForceRepaint call in the same place we call -[WebView displayIfNeeded] in DRT on Mac. (DRT on Windows does the equivalent of this in its dump() function; we could try moving the call to the equivalent place in WTR.) 360966 6 aroben 2011-03-02 12:07:18 -0800 My bad for not noticing I caused this! 360969 7 aroben 2011-03-02 12:10:29 -0800 (In reply to comment #5) > I wonder why WebKit1 doesn't have this problem? I placed the WKBundlePageForceRepaint call in the same place we call -[WebView displayIfNeeded] in DRT on Mac. I guess it's possible -displayIfNeeded was bailing because no display is needed. But *something* is causing the tests always to paint in DRT. 361005 8 aroben 2011-03-02 13:00:32 -0800 Here's a backtrace: WebKit.dll!WTF::RefPtr<WebCore::Frame>::get() Line 60 + 0x11 bytes C++ WebKit.dll!WebCore::Page::mainFrame() Line 135 + 0x19 bytes C++ WebKit.dll!WebCore::FrameView::paintOverhangAreas(WebCore::GraphicsContext * context=0x0249bb68, const WebCore::IntRect & horizontalOverhangArea={...}, const WebCore::IntRect & verticalOverhangArea={...}, const WebCore::IntRect & dirtyRect={...}) Line 2361 + 0x12 bytes C++ WebKit.dll!WebCore::ScrollView::paint(WebCore::GraphicsContext * context=0x0249bb68, const WebCore::IntRect & rect={...}) Line 943 + 0x22 bytes C++ WebKit.dll!WebCore::RenderWidget::paint(WebCore::PaintInfo & paintInfo={...}, int tx=0, int ty=0) Line 299 + 0x30 bytes C++ WebKit.dll!WebCore::RenderFrameSet::paint(WebCore::PaintInfo & paintInfo={...}, int tx=0, int ty=0) Line 142 + 0x1e bytes C++ WebKit.dll!WebCore::RenderFrameSet::paint(WebCore::PaintInfo & paintInfo={...}, int tx=0, int ty=0) Line 142 + 0x1e bytes C++ WebKit.dll!WebCore::RenderBlock::paintChildren(WebCore::PaintInfo & paintInfo={...}, int tx=0, int ty=0) Line 2367 + 0x28 bytes C++ WebKit.dll!WebCore::RenderBlock::paintContents(WebCore::PaintInfo & paintInfo={...}, int tx=0, int ty=0) Line 2327 C++ WebKit.dll!WebCore::RenderBlock::paintObject(WebCore::PaintInfo & paintInfo={...}, int tx=0, int ty=0) Line 2439 C++ WebKit.dll!WebCore::RenderBlock::paint(WebCore::PaintInfo & paintInfo={...}, int tx=0, int ty=0) Line 2214 + 0x1e bytes C++ WebKit.dll!WebCore::RenderLayer::paintLayer(WebCore::RenderLayer * rootLayer=0x0247dabc, WebCore::GraphicsContext * p=0x0249bb68, const WebCore::IntRect & paintDirtyRect={...}, unsigned int paintBehavior=0, WebCore::RenderObject * paintingRoot=0x00000000, WTF::HashMap<WebCore::OverlapTestRequestClient *,WebCore::IntRect,WTF::PtrHash<WebCore::OverlapTestRequestClient *>,WTF::HashTraits<WebCore::OverlapTestRequestClient *>,WTF::HashTraits<WebCore::IntRect> > * overlapTestRequests=0x0012e658, unsigned int paintFlags=0) Line 2509 + 0x3b bytes C++ WebKit.dll!WebCore::RenderLayer::paintList(WTF::Vector<WebCore::RenderLayer *,0> * list=[1](0x025309dc {m_renderer=0x024e604c m_parent=0x0247dabc m_previous=0x00000000 ...}), WebCore::RenderLayer * rootLayer=0x0247dabc, WebCore::GraphicsContext * p=0x0249bb68, const WebCore::IntRect & paintDirtyRect={...}, unsigned int paintBehavior=0, WebCore::RenderObject * paintingRoot=0x00000000, WTF::HashMap<WebCore::OverlapTestRequestClient *,WebCore::IntRect,WTF::PtrHash<WebCore::OverlapTestRequestClient *>,WTF::HashTraits<WebCore::OverlapTestRequestClient *>,WTF::HashTraits<WebCore::IntRect> > * overlapTestRequests=0x0012e658, unsigned int paintFlags=0) Line 2563 C++ WebKit.dll!WebCore::RenderLayer::paintLayer(WebCore::RenderLayer * rootLayer=0x0247dabc, WebCore::GraphicsContext * p=0x0249bb68, const WebCore::IntRect & paintDirtyRect={...}, unsigned int paintBehavior=0, WebCore::RenderObject * paintingRoot=0x00000000, WTF::HashMap<WebCore::OverlapTestRequestClient *,WebCore::IntRect,WTF::PtrHash<WebCore::OverlapTestRequestClient *>,WTF::HashTraits<WebCore::OverlapTestRequestClient *>,WTF::HashTraits<WebCore::IntRect> > * overlapTestRequests=0x0012e658, unsigned int paintFlags=0) Line 2532 C++ WebKit.dll!WebCore::RenderLayer::paint(WebCore::GraphicsContext * p=0x0249bb68, const WebCore::IntRect & damageRect={...}, unsigned int paintBehavior=0, WebCore::RenderObject * paintingRoot=0x00000000) Line 2315 C++ WebKit.dll!WebCore::FrameView::paintContents(WebCore::GraphicsContext * p=0x0249bb68, const WebCore::IntRect & rect={...}) Line 2312 C++ WebKit.dll!WebCore::ScrollView::paint(WebCore::GraphicsContext * context=0x0249bb68, const WebCore::IntRect & rect={...}) Line 934 + 0x1a bytes C++ WebKit.dll!WebKit::WebPage::drawRect(WebCore::GraphicsContext & graphicsContext={...}, const WebCore::IntRect & rect={...}) Line 588 + 0x33 bytes C++ WebKit.dll!WebKit::DrawingAreaImpl::display(WebKit::UpdateInfo & updateInfo={...}) Line 480 C++ WebKit.dll!WebKit::DrawingAreaImpl::display() Line 403 C++ WebKit.dll!WebKit::DrawingAreaImpl::forceRepaint() Line 159 C++ WebKit.dll!WebKit::WebPage::forceRepaintWithoutCallback() Line 1286 + 0x1d bytes C++ WebKit.dll!WKBundlePageForceRepaint(const OpaqueWKBundlePage * page=0x024806e8) Line 219 C++ InjectedBundle.dll!WTR::InjectedBundlePage::didFinishLoadForFrame(const OpaqueWKBundleFrame * frame=0x02483f38) Line 537 + 0xe bytes C++ InjectedBundle.dll!WTR::InjectedBundlePage::didFinishLoadForFrame(const OpaqueWKBundlePage * page=0x024806e8, const OpaqueWKBundleFrame * frame=0x02483f38, const void * * __formal=0x0012e99c, const void * clientInfo=0x024c8b90) Line 288 C++ WebKit.dll!WebKit::InjectedBundlePageLoaderClient::didFinishLoadForFrame(WebKit::WebPage * page=0x024806e8, WebKit::WebFrame * frame=0x02483f38, WTF::RefPtr<WebKit::APIObject> & userData=0x00000000) Line 95 + 0x2f bytes C++ WebKit.dll!WebKit::WebFrameLoaderClient::dispatchDidFinishLoad() Line 518 C++ WebKit.dll!WebCore::FrameLoader::checkLoadCompleteForThisFrame() Line 2427 + 0x18 bytes C++ WebKit.dll!WebCore::FrameLoader::recursiveCheckLoadComplete() Line 2539 C++ WebKit.dll!WebCore::FrameLoader::checkLoadComplete() Line 2552 C++ WebKit.dll!WebCore::FrameLoader::mainReceivedCompleteError(WebCore::DocumentLoader * loader=0x025542f0, const WebCore::ResourceError & __formal={...}) Line 3302 C++ WebKit.dll!WebCore::DocumentLoader::mainReceivedError(const WebCore::ResourceError & error={...}, bool isComplete=true) Line 206 C++ WebKit.dll!WebCore::FrameLoader::receivedMainResourceError(const WebCore::ResourceError & error={...}, bool isComplete=true) Line 2837 C++ WebKit.dll!WebCore::MainResourceLoader::didCancel(const WebCore::ResourceError & error={...}) Line 111 C++ WebKit.dll!WebCore::ResourceLoader::cancel(const WebCore::ResourceError & error={...}) Line 381 + 0x1f bytes C++ WebKit.dll!WebCore::ResourceLoader::cancel() Line 371 + 0x18 bytes C++ WebKit.dll!WebCore::DocumentLoader::stopLoading() Line 248 + 0x12 bytes C++ WebKit.dll!WebCore::FrameLoader::stopAllLoaders(WebCore::ClearProvisionalItemPolicy clearProvisionalItemPolicy=ShouldClearProvisionalItem) Line 1715 C++ WebKit.dll!WebCore::FrameLoader::frameDetached() Line 2587 C++ > WebKit.dll!WebCore::HTMLFrameOwnerElement::willRemove() Line 59 C++ WebKit.dll!WebCore::HTMLFrameElementBase::willRemove() Line 284 C++ WebKit.dll!WebCore::ContainerNode::willRemove() Line 363 + 0x24 bytes C++ WebKit.dll!WebCore::ContainerNode::willRemove() Line 363 + 0x24 bytes C++ WebKit.dll!WebCore::willRemoveChildren(WebCore::ContainerNode * container=0x0251a008) Line 391 + 0x12 bytes C++ WebKit.dll!WebCore::ContainerNode::removeChildren() Line 510 + 0xe bytes C++ WebKit.dll!WebCore::Document::implicitOpen() Line 1963 C++ WebKit.dll!WebCore::Document::open(WebCore::Document * ownerDocument=0x0251a008) Line 1926 C++ WebKit.dll!WebCore::JSHTMLDocument::open(JSC::ExecState * exec=0x03a00170) Line 129 C++ WebKit.dll!WebCore::jsHTMLDocumentPrototypeFunctionOpen(JSC::ExecState * exec=0x03a00170) Line 402 + 0x10 bytes C++ 040a006a() JavaScriptCore.dll!cti_vm_lazyLinkCall() Line 2022 + 0x1c bytes C++ JavaScriptCore.dll!JSC::Interpreter::executeCall(JSC::ExecState * callFrame=0x0252c3f8, JSC::JSObject * function=0x04031d98, JSC::CallType callType=CallTypeJS, const JSC::CallData & callData={...}, JSC::JSValue thisValue={...}, const JSC::ArgList & args={...}) Line 844 + 0x2a bytes C++ JavaScriptCore.dll!JSC::call(JSC::ExecState * exec=0x0252c3f8, JSC::JSValue functionObject={...}, JSC::CallType callType=CallTypeJS, const JSC::CallData & callData={...}, JSC::JSValue thisValue={...}, const JSC::ArgList & args={...}) Line 38 + 0x3c bytes C++ WebKit.dll!WebCore::JSMainThreadExecState::call(JSC::ExecState * exec=0x0252c3f8, JSC::JSValue functionObject={...}, JSC::CallType callType=CallTypeJS, const JSC::CallData & callData={...}, JSC::JSValue thisValue={...}, const JSC::ArgList & args={...}) Line 48 + 0x29 bytes C++ WebKit.dll!WebCore::JSEventListener::handleEvent(WebCore::ScriptExecutionContext * scriptExecutionContext=, WebCore::Event * event=) Line 123 + 0x6a bytes C++ WebKit.dll!WebCore::EventTarget::fireEventListeners(WebCore::Event * event=0x0251f5b8, WebCore::EventTargetData * d=0x024ce5e8, WTF::Vector<WebCore::RegisteredEventListener,1> & entry=[1549312]({listener={...} useCapture=??? },{listener={...} useCapture=??? },{listener={...} useCapture=??? },{listener={...} useCapture=??? },{listener={...} useCapture=??? },{listener={...} useCapture=??? },{listener={...} useCapture=??? },{listener={...} useCapture=??? },{listener={...} useCapture=??? },{listener={...} useCapture=??? },{listener={...} useCapture=??? },{listener={...} useCapture=,...)) Line 354 + 0x35 bytes C++ WebKit.dll!WebCore::EventTarget::fireEventListeners(WebCore::Event * event=0x0251f5b8) Line 325 C++ WebKit.dll!WebCore::DOMWindow::dispatchEvent(WTF::PassRefPtr<WebCore::Event> prpEvent={...}, WTF::PassRefPtr<WebCore::EventTarget> prpTarget={...}) Line 1585 + 0x11 bytes C++ WebKit.dll!WebCore::DOMWindow::dispatchTimedEvent(WTF::PassRefPtr<WebCore::Event> event={...}, WebCore::Document * target=0x0251a008, double * startTime=0x02492578, double * endTime=0x02492580) Line 1598 C++ WebKit.dll!WebCore::DOMWindow::dispatchLoadEvent() Line 1558 C++ WebKit.dll!WebCore::Document::dispatchWindowLoadEvent() Line 3505 C++ WebKit.dll!WebCore::Document::implicitClose() Line 2091 C++ WebKit.dll!WebCore::FrameLoader::checkCallImplicitClose() Line 892 C++ WebKit.dll!WebCore::FrameLoader::checkCompleted() Line 841 C++ WebKit.dll!WebCore::FrameLoader::completed() Line 1204 C++ WebKit.dll!WebCore::FrameLoader::checkCompleted() Line 844 C++ WebKit.dll!WebCore::FrameLoader::finishedParsing() Line 775 C++ WebKit.dll!WebCore::Document::finishedParsing() Line 4272 C++ WebKit.dll!WebCore::ImageDocumentParser::finish() Line 171 + 0x1d bytes C++ WebKit.dll!WebCore::Document::finishParsing() Line 2257 + 0x20 bytes C++ WebKit.dll!WebCore::DocumentWriter::endIfNotLoadingMainResource() Line 223 C++ WebKit.dll!WebCore::DocumentWriter::end() Line 208 C++ WebKit.dll!WebCore::DocumentLoader::finishedLoading() Line 286 C++ WebKit.dll!WebCore::FrameLoader::finishedLoading() Line 2189 C++ WebKit.dll!WebCore::MainResourceLoader::didFinishLoading(double finishTime=0.00000000000000000) Line 466 C++ WebKit.dll!WebCore::ResourceLoader::didFinishLoading(WebCore::ResourceHandle * __formal=0x025288c8, double finishTime=0.00000000000000000) Line 436 + 0x18 bytes C++ WebKit.dll!WebCore::didFinishLoading(_CFURLConnection * conn=0x02556650, const void * clientInfo=0x025288c8) Line 241 + 0x26 bytes C++ 361007 9 aroben 2011-03-02 13:01:17 -0800 We're crashing on this line: if (page->mainFrame() == m_frame) { page is 0. m_frame is not the same frame that is being detached. 361046 10 aroben 2011-03-02 13:46:27 -0800 It looks like FrameView::paintContents, which is also called at this time, does not require the Page to be non-null (at least not directly). 361084 11 aroben 2011-03-02 14:40:06 -0800 I can reproduce the crash in WebKit1 on Windows by adding code to force a display at the equivalent point in DRT. (As stated above, DRT on Windows normally waits until dump() is called to force a display.) I'd bet we can get the crash to go away in WebKit2 by waiting to force the repaint until dump() is called. We'd still want to fix the underlying issue here, though. 361092 12 aroben 2011-03-02 14:50:20 -0800 (In reply to comment #11) > I'd bet we can get the crash to go away in WebKit2 by waiting to force the repaint until dump() is called. That does indeed fix the crash. 361101 13 aroben 2011-03-02 15:03:25 -0800 I discovered a few more things while looking at what happens in WebKit1 on Mac: In some tests, e.g., css1/basic/class_as_selector.html, the -displayIfNeeded call in -webView:didFinishLoadForFrame: does indeed cause a display. In others, e.g., dom/html/level2/html/HTMLFrameElement01.html, the -displayIfNeeded call *does not* cause a display, and in fact we never display at all in that test in WebKit1. So it looks like DRT on Mac and DRT on Windows have an important difference: Windows always displays, while Mac only sometimes displays. The change I made to WTR made it always display, like DRT on Windows, but put the call in the place where Mac DRT has it. I think the best thing to do is to move it to dump() to match DRT on Windows. 361110 14 84475 aroben 2011-03-02 15:10:31 -0800 Created attachment 84475 Wait for force a paint in WebKitTestRunner until we're actually ready to dump the output 361112 15 aroben 2011-03-02 15:11:03 -0800 We're going to track the underlying issue separately. Beth volunteered to file that bug. 361117 16 bdakin 2011-03-02 15:17:26 -0800 (In reply to comment #15) > We're going to track the underlying issue separately. Beth volunteered to file that bug. I filed: https://bugs.webkit.org/show_bug.cgi?id=55624 361118 17 aroben 2011-03-02 15:19:51 -0800 Committed r80175: <http://trac.webkit.org/changeset/80175> 84475 2011-03-02 15:10:31 -0800 2011-03-02 15:12:16 -0800 Wait for force a paint in WebKitTestRunner until we're actually ready to dump the output bug-55469-20110302181036.patch text/plain 2324 aroben U3VidmVyc2lvbiBSZXZpc2lvbjogODAxNTgKZGlmZiAtLWdpdCBhL1Rvb2xzL0NoYW5nZUxvZyBi L1Rvb2xzL0NoYW5nZUxvZwppbmRleCBkN2ZjYzNjYjZhNGVmMmEwNzhkYTk2ZWNiNThmZDJiYWNh N2FkZjJkLi4wOWVkMDcxZDFmMGM2ZGE1ZDVjOTdmZWU1ODMxY2IxYjJiOWE2NjRiIDEwMDY0NAot LS0gYS9Ub29scy9DaGFuZ2VMb2cKKysrIGIvVG9vbHMvQ2hhbmdlTG9nCkBAIC0xLDUgKzEsMjEg QEAKIDIwMTEtMDMtMDIgIEFkYW0gUm9iZW4gIDxhcm9iZW5AYXBwbGUuY29tPgogCisgICAgICAg IFdhaXQgZm9yIGZvcmNlIGEgcGFpbnQgaW4gV2ViS2l0VGVzdFJ1bm5lciB1bnRpbCB3ZSdyZSBh Y3R1YWxseSByZWFkeSB0byBkdW1wIHRoZSBvdXRwdXQKKworICAgICAgICBUaGlzIG1hdGNoZXMg RHVtcFJlbmRlclRyZWUgb24gV2luZG93cy4KKworICAgICAgICBGaXhlcyA8aHR0cDovL3dlYmtp dC5vcmcvYi81NTQ2OT4gPHJkYXI6Ly9wcm9ibGVtLzkwNjg1Mzk+IFJFR1JFU1NJT04gKHI3OTg2 Myk6IExvdHMgb2YKKyAgICAgICAgZG9tL2h0bWwvbGV2ZWwyL2h0bWwvSFRNTEZyYW1lRWxlbWVu dCouaHRtbCB0ZXN0cyBjcmFzaGluZyBpbiBGcmFtZVZpZXc6OnBhaW50T3ZlcmhhbmdBcmVhcwor ICAgICAgICBpbiBXZWJLaXQyCisKKyAgICAgICAgUmV2aWV3ZWQgYnkgTk9CT0RZIChPT1BTISku CisKKyAgICAgICAgKiBXZWJLaXRUZXN0UnVubmVyL0luamVjdGVkQnVuZGxlL0luamVjdGVkQnVu ZGxlUGFnZS5jcHA6CisgICAgICAgIChXVFI6OkluamVjdGVkQnVuZGxlUGFnZTo6ZHVtcCk6IE1v dmVkIGNvZGUgdG8gZm9yY2UgYSBwYWludCBoZXJlLi4uCisgICAgICAgIChXVFI6OkluamVjdGVk QnVuZGxlUGFnZTo6ZGlkRmluaXNoTG9hZEZvckZyYW1lKTogLi4uZnJvbSBoZXJlLgorCisyMDEx LTAzLTAyICBBZGFtIFJvYmVuICA8YXJvYmVuQGFwcGxlLmNvbT4KKwogICAgICAgICBEb24ndCB0 cnkgdG8gY2FwdHVyZSBjcmFzaCBsb2dzIG9uIHBsYXRmb3JtcyB0aGF0IGhhdmVuJ3QgaW1wbGVt ZW50ZWQgdGhhdCBmZWF0dXJlCiAKICAgICAgICAgRml4ZXMgPGh0dHA6Ly93ZWJraXQub3JnL2Iv NTU1MDQ+IFVzZSBvZiB1bmluaXRpYWxpemVkIHZhbHVlIGluIG51bWVyaWMgbHQgKDwpIGF0CmRp ZmYgLS1naXQgYS9Ub29scy9XZWJLaXRUZXN0UnVubmVyL0luamVjdGVkQnVuZGxlL0luamVjdGVk QnVuZGxlUGFnZS5jcHAgYi9Ub29scy9XZWJLaXRUZXN0UnVubmVyL0luamVjdGVkQnVuZGxlL0lu amVjdGVkQnVuZGxlUGFnZS5jcHAKaW5kZXggNjFlNzc2MTYyNGQ4MjgwYjEyYjFiNWMyYzk5NDUw NWQ1NmJiNDQ4ZS4uMzVlMWE1ZjZkZWIyN2Y1YmZkYmVhYzU0NjAzNjI5MzcyNTU3YThmOCAxMDA2 NDQKLS0tIGEvVG9vbHMvV2ViS2l0VGVzdFJ1bm5lci9JbmplY3RlZEJ1bmRsZS9JbmplY3RlZEJ1 bmRsZVBhZ2UuY3BwCisrKyBiL1Rvb2xzL1dlYktpdFRlc3RSdW5uZXIvSW5qZWN0ZWRCdW5kbGUv SW5qZWN0ZWRCdW5kbGVQYWdlLmNwcApAQCAtNDk1LDYgKzQ5NSwxMCBAQCB2b2lkIEluamVjdGVk QnVuZGxlUGFnZTo6ZHVtcCgpCiAKICAgICBJbmplY3RlZEJ1bmRsZTo6c2hhcmVkKCkubGF5b3V0 VGVzdENvbnRyb2xsZXIoKS0+aW52YWxpZGF0ZVdhaXRUb0R1bXBXYXRjaGRvZ1RpbWVyKCk7CiAK KyAgICAvLyBGb3JjZSBhIHBhaW50IGJlZm9yZSBkdW1waW5nLiBUaGlzIG1hdGNoZXMgRHVtcFJl bmRlclRyZWUgb24gV2luZG93cy4gU2VlCisgICAgLy8gPGh0dHA6Ly93ZWJraXQub3JnL2IvNTU0 Njk+IGZvciBkZXRhaWxzLgorICAgIFdLQnVuZGxlUGFnZUZvcmNlUmVwYWludChtX3BhZ2UpOwor CiAgICAgV0tCdW5kbGVGcmFtZVJlZiBmcmFtZSA9IFdLQnVuZGxlUGFnZUdldE1haW5GcmFtZSht X3BhZ2UpOwogICAgIHN0cmluZyB1cmwgPSB0b1NURChhZG9wdFdLKFdLVVJMQ29weVN0cmluZyhh ZG9wdFdLKFdLQnVuZGxlRnJhbWVDb3B5VVJMKGZyYW1lKSkuZ2V0KCkpKSk7CiAgICAgaWYgKHN0 cnN0cih1cmwuY19zdHIoKSwgImR1bXBBc1RleHQvIikpCkBAIC01MzQsOCArNTM4LDYgQEAgdm9p ZCBJbmplY3RlZEJ1bmRsZVBhZ2U6OmRpZEZpbmlzaExvYWRGb3JGcmFtZShXS0J1bmRsZUZyYW1l UmVmIGZyYW1lKQogICAgICAgICByZXR1cm47CiAgICAgSW5qZWN0ZWRCdW5kbGU6OnNoYXJlZCgp LnNldFRvcExvYWRpbmdGcmFtZSgwKTsKIAotICAgIFdLQnVuZGxlUGFnZUZvcmNlUmVwYWludCht X3BhZ2UpOwotCiAgICAgaWYgKEluamVjdGVkQnVuZGxlOjpzaGFyZWQoKS5sYXlvdXRUZXN0Q29u dHJvbGxlcigpLT53YWl0VG9EdW1wKCkpCiAgICAgICAgIHJldHVybjsKIAo=