After the fix for JDK-8280020, we are seeing a consistently reproducible crash when browsing https://us.yahoo.com/

To reproduce this:

1. Run the following:
java HelloWebView https://us.yahoo.com/

2. Hover over the blue "Yahoo!" logo in the upper right of the page.

BUG: This will crash with the following stack track

Crashed Thread: 0 Dispatch queue: com.apple.main-thread

Exception Type: EXC_BREAKPOINT (SIGTRAP)
Exception Codes: 0x0000000000000002, 0x0000000000000000
Exception Note: EXC_CORPSE_NOTIFY

Termination Reason: Namespace SIGNAL, Code 5 Trace/BPT trap: 5
Terminating Process: exc handler [72034]

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 libjfxwebkit.dylib 0x13f7da955 WebCore::GraphicsContextJava::drawLinesForText(WebCore::FloatPoint const&, float, WTF::Vector<double, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc> const&, bool, bool, WebCore::StrokeStyle) + 453

See the attached crash report for a complete stack trace.

If I locally revert the fix for JDK-8280020, the crash doesn't occur.