I also observe the application still updating its windows in real time (it is showing real-time data), but pretty unresponsive in its reactions to mouse movements, let alone clicks.
The debugger tells me that the AWT message loop is exlusively in CefApp.N_DoMessageLoopWork, though I'm pretty sure it's still processing other events.
1) What might be the cause of the GPU process crashing?
2) How can my application stay responsive even if the GPU crash happens?
My colleague reported that the windowless rendering mode will make the effect go away; for me, it would crash whether windowless rendering is on or off, so I'm taking that report with a grain of salt.
Technical detail follows.
Log output from application start-up:
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2020-06-09T19:50:13.832+0200 [main ] [INFO ] com.rolotec.vega.base.MainFrame - Using java-cef version: JCEF Version = 81.2.24.0
CEF Version = 81.2.24
Chromium Version = 81.0.4044.113
...
2020-06-09T19:50:30.730+0200 [AWT-EventQueue-0 ] [INFO ] org.cef.CefApp - initialize on Thread[AWT-EventQueue-0,6,main] with library path ./src/main/resources/lib
[0609/195030.873:WARNING:gpu_process_host.cc(1204)] The GPU process has crashed 1 time(s)
[0609/195030.874:WARNING:gpu_process_host.cc(1204)] The GPU process has crashed 2 time(s)
[0609/195030.876:WARNING:gpu_process_host.cc(1204)] The GPU process has crashed 3 time(s)
[0609/195030.877:WARNING:gpu_process_host.cc(1204)] The GPU process has crashed 4 time(s)
[0609/195030.878:WARNING:gpu_process_host.cc(1204)] The GPU process has crashed 5 time(s)
[0609/195030.878:WARNING:gpu_process_host.cc(1204)] The GPU process has crashed 6 time(s)
[0609/195030.879:ERROR:browser_gpu_channel_host_factory.cc(153)] Failed to launch GPU process.
[0609/195031.156:ERROR:browser_gpu_channel_host_factory.cc(153)] Failed to launch GPU process.
Later I made some log output by placing a breakpoint in EventQueue.dispatchEvent and have it print the AWTEvent being processed:
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sun.awt.PeerEvent[INVOCATION_DEFAULT,runnable=javax.swing.JComponent$$Lambda$468/179761235@55ecc1f7,notifier=null,catchExceptions=false,when=1591725944390] on javax.swing.JPanel[,1497,16,257x24,layout=java.awt.GridBagLayout,alignmentX=0.0,alignmentY=0.0,border=,flags=9,maximumSize=,minimumSize=,preferredSize=]
sun.awt.PeerEvent[INVOCATION_DEFAULT,runnable=javax.swing.JComponent$$Lambda$468/179761235@73a962ea,notifier=null,catchExceptions=false,when=1591725944390] on javax.swing.JPanel[,1640,0,114x15,layout=java.awt.FlowLayout,alignmentX=0.0,alignmentY=0.0,border=,flags=9,maximumSize=,minimumSize=,preferredSize=]
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@1bd9027b,notifier=null,catchExceptions=false,when=1591725944262] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@6a889f5c,notifier=null,catchExceptions=false,when=1591725944277] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@59d80883,notifier=null,catchExceptions=false,when=1591725944277] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@650566e1,notifier=null,catchExceptions=false,when=1591725944308] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=com.rolotec.vega.service.data.chart.AbstractChartDataAdaptor$$Lambda$355/1894505292@324783fa,notifier=null,catchExceptions=false,when=1591725944379] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.RepaintManager$ProcessingRunnable@10f472d0,notifier=null,catchExceptions=false,when=1591725944389] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@1ac38e1e,notifier=null,catchExceptions=false,when=1591725944490] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@59e0781,notifier=null,catchExceptions=false,when=1591725944644] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@102ebdcd,notifier=null,catchExceptions=false,when=1591725944663] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@1e78a461,notifier=null,catchExceptions=false,when=1591725944663] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@650566e1,notifier=null,catchExceptions=false,when=1591725944809] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.browser.CefBrowserWr$1$1@4e954e03,notifier=null,catchExceptions=false,when=1591725944877] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@1595b01c,notifier=null,catchExceptions=false,when=1591725945012] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@74520481,notifier=null,catchExceptions=false,when=1591725945028] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@5db8ef40,notifier=null,catchExceptions=false,when=1591725945028] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.RepaintManager$ProcessingRunnable@10f472d0,notifier=null,catchExceptions=false,when=1591725945077] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=com.rolotec.vega.swing.util.ScreenConfiguration$1$$Lambda$160/106258994@4f251f3f,notifier=null,catchExceptions=false,when=1591725945129] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@11405d9,notifier=null,catchExceptions=false,when=1591725945259] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@65867f76,notifier=null,catchExceptions=false,when=1591725945275] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@7fde4e69,notifier=null,catchExceptions=false,when=1591725945275] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@650566e1,notifier=null,catchExceptions=false,when=1591725945311] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@2d32f4f6,notifier=null,catchExceptions=false,when=1591725945509] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@7b9953e9,notifier=null,catchExceptions=false,when=1591725945524] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@76b9f7f5,notifier=null,catchExceptions=false,when=1591725945524] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@8e82e15,notifier=null,catchExceptions=false,when=1591725945716] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@395f22fa,notifier=null,catchExceptions=false,when=1591725945732] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@607c7b,notifier=null,catchExceptions=false,when=1591725945733] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@650566e1,notifier=null,catchExceptions=false,when=1591725945813] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@44b4ea26,notifier=null,catchExceptions=false,when=1591725945863] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@43c58b8,notifier=null,catchExceptions=false,when=1591725945878] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@7bc6fe0,notifier=null,catchExceptions=false,when=1591725945878] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@46d524f5,notifier=null,catchExceptions=false,when=1591725946058] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@650566e1,notifier=null,catchExceptions=false,when=1591725946064] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@204a5d0f,notifier=null,catchExceptions=false,when=1591725946079] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@44ede589,notifier=null,catchExceptions=false,when=1591725946079] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=com.rolotec.vega.swing.util.ScreenConfiguration$1$$Lambda$160/106258994@4f251f3f,notifier=null,catchExceptions=false,when=1591725946129] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@16e32576,notifier=null,catchExceptions=false,when=1591725946260] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@64b3a080,notifier=null,catchExceptions=false,when=1591725946277] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@4fd9d032,notifier=null,catchExceptions=false,when=1591725946278] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@650566e1,notifier=null,catchExceptions=false,when=1591725946315] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@4b4a17cf,notifier=null,catchExceptions=false,when=1591725946457] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@32841986,notifier=null,catchExceptions=false,when=1591725946475] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@335d17a4,notifier=null,catchExceptions=false,when=1591725946476] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@650566e1,notifier=null,catchExceptions=false,when=1591725946566] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@6843bd5,notifier=null,catchExceptions=false,when=1591725946661] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@145e5aaa,notifier=null,catchExceptions=false,when=1591725946676] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@4f659fb2,notifier=null,catchExceptions=false,when=1591725946676] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@650566e1,notifier=null,catchExceptions=false,when=1591725946817] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@28adc8d9,notifier=null,catchExceptions=false,when=1591725946859] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@4e405c6c,notifier=null,catchExceptions=false,when=1591725946876] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@2dbbd219,notifier=null,catchExceptions=false,when=1591725946876] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@64ca5376,notifier=null,catchExceptions=false,when=1591725947057] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@650566e1,notifier=null,catchExceptions=false,when=1591725947067] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@28a5c0bf,notifier=null,catchExceptions=false,when=1591725947074] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@5bfde4a8,notifier=null,catchExceptions=false,when=1591725947075] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=com.rolotec.vega.swing.util.ScreenConfiguration$1$$Lambda$160/106258994@4f251f3f,notifier=null,catchExceptions=false,when=1591725947129] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@7285f119,notifier=null,catchExceptions=false,when=1591725947258] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@74a367ce,notifier=null,catchExceptions=false,when=1591725947281] on sun.awt.windows.WToolkit@4b9006e
sun.awt.PeerEvent[INVOCATION_DEFAULT,runnable=javax.swing.JComponent$$Lambda$468/179761235@404f0556,notifier=null,catchExceptions=false,when=1591725947380] on javax.swing.JPanel[,1640,0,114x15,layout=java.awt.FlowLayout,alignmentX=0.0,alignmentY=0.0,border=,flags=9,maximumSize=,minimumSize=,preferredSize=]
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@16a36c84,notifier=null,catchExceptions=false,when=1591725947281] on sun.awt.windows.WToolkit@4b9006e
sun.awt.PeerEvent[INVOCATION_DEFAULT,runnable=javax.swing.JComponent$$Lambda$468/179761235@2481d9d7,notifier=null,catchExceptions=false,when=1591725947480] on javax.swing.JPanel[,1497,16,257x24,layout=java.awt.GridBagLayout,alignmentX=0.0,alignmentY=0.0,border=,flags=9,maximumSize=,minimumSize=,preferredSize=]
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@650566e1,notifier=null,catchExceptions=false,when=1591725947318] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.RepaintManager$ProcessingRunnable@10f472d0,notifier=null,catchExceptions=false,when=1591725947380] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@1c5c0da4,notifier=null,catchExceptions=false,when=1591725947460] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=com.rolotec.vega.service.data.chart.AbstractChartDataAdaptor$$Lambda$355/1894505292@111695e7,notifier=null,catchExceptions=false,when=1591725947480] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@6a82dbd5,notifier=null,catchExceptions=false,when=1591725947525] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@16cfca0c,notifier=null,catchExceptions=false,when=1591725947525] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.RepaintManager$ProcessingRunnable@10f472d0,notifier=null,catchExceptions=false,when=1591725947776] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@650566e1,notifier=null,catchExceptions=false,when=1591725947819] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@3080f5ad,notifier=null,catchExceptions=false,when=1591725947860] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@5877d61b,notifier=null,catchExceptions=false,when=1591725947877] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@756ddeae,notifier=null,catchExceptions=false,when=1591725947877] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.RepaintManager$ProcessingRunnable@10f472d0,notifier=null,catchExceptions=false,when=1591725947987] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@650566e1,notifier=null,catchExceptions=false,when=1591725948070] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@881f074,notifier=null,catchExceptions=false,when=1591725948125] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=com.rolotec.vega.swing.util.ScreenConfiguration$1$$Lambda$160/106258994@4f251f3f,notifier=null,catchExceptions=false,when=1591725948129] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@6e202871,notifier=null,catchExceptions=false,when=1591725948142] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@752303b5,notifier=null,catchExceptions=false,when=1591725948142] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@650566e1,notifier=null,catchExceptions=false,when=1591725948321] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@176514f1,notifier=null,catchExceptions=false,when=1591725948420] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@78e9d5cc,notifier=null,catchExceptions=false,when=1591725948434] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@15ba5fcf,notifier=null,catchExceptions=false,when=1591725948435] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@650566e1,notifier=null,catchExceptions=false,when=1591725948572] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@3893492d,notifier=null,catchExceptions=false,when=1591725948622] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@e62bc46,notifier=null,catchExceptions=false,when=1591725948639] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@4961ce62,notifier=null,catchExceptions=false,when=1591725948640] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@1cbd9748,notifier=null,catchExceptions=false,when=1591725948820] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@650566e1,notifier=null,catchExceptions=false,when=1591725948822] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@7a69815,notifier=null,catchExceptions=false,when=1591725948836] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@4073445d,notifier=null,catchExceptions=false,when=1591725948837] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@25080474,notifier=null,catchExceptions=false,when=1591725949018] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@16dd56f0,notifier=null,catchExceptions=false,when=1591725949037] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@4c56b9da,notifier=null,catchExceptions=false,when=1591725949037] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@650566e1,notifier=null,catchExceptions=false,when=1591725949073] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=com.rolotec.vega.swing.util.ScreenConfiguration$1$$Lambda$160/106258994@4f251f3f,notifier=null,catchExceptions=false,when=1591725949129] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@2f1ada21,notifier=null,catchExceptions=false,when=1591725949153] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@7c99253,notifier=null,catchExceptions=false,when=1591725949180] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@6247eac3,notifier=null,catchExceptions=false,when=1591725949206] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@168f2a3f,notifier=null,catchExceptions=false,when=1591725949206] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@650566e1,notifier=null,catchExceptions=false,when=1591725949324] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.RepaintManager$ProcessingRunnable@10f472d0,notifier=null,catchExceptions=false,when=1591725949377] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@1ac38e1e,notifier=null,catchExceptions=false,when=1591725949478] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@3da79e05,notifier=null,catchExceptions=false,when=1591725949516] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@5296955c,notifier=null,catchExceptions=false,when=1591725949540] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@203791dc,notifier=null,catchExceptions=false,when=1591725949540] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.browser.CefBrowserWr$1$1@1a382c14,notifier=null,catchExceptions=false,when=1591725949695] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@650566e1,notifier=null,catchExceptions=false,when=1591725949824] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@7c62767a,notifier=null,catchExceptions=false,when=1591725949829] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@60c7a15b,notifier=null,catchExceptions=false,when=1591725949846] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@db2ab07,notifier=null,catchExceptions=false,when=1591725949846] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@650566e1,notifier=null,catchExceptions=false,when=1591725950075] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@398f0323,notifier=null,catchExceptions=false,when=1591725950076] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@649fa030,notifier=null,catchExceptions=false,when=1591725950096] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@7cedd537,notifier=null,catchExceptions=false,when=1591725950096] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=com.rolotec.vega.swing.util.ScreenConfiguration$1$$Lambda$160/106258994@4f251f3f,notifier=null,catchExceptions=false,when=1591725950129] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@650566e1,notifier=null,catchExceptions=false,when=1591725950326] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@602735a3,notifier=null,catchExceptions=false,when=1591725950458] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@792097b7,notifier=null,catchExceptions=false,when=1591725950524] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@6bf6b1c9,notifier=null,catchExceptions=false,when=1591725950525] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@650566e1,notifier=null,catchExceptions=false,when=1591725950828] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=javax.swing.Timer$DoPostEvent@16948360,notifier=null,catchExceptions=false,when=1591725950954] on sun.awt.windows.WToolkit@4b9006e
java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=org.cef.CefApp$6@6b74232a,notifier=null,catchExceptions=false,when=1591725951012] on sun.awt.windows.WToolkit@4b9006e
It seems like some resizing isn't reaching a stable state, so AWT never gets around to processing mouse clicks or keyboard presses.
The application needs to be terminated through Task Manager if that happens. Terminating it through the debugger takes 10 seconds of "waiting for debugger response", another 35 seconds for IntelliJ to actually report disconnect from the VM, and an unknown time until application termination (more than five minutes, I shut the appliation down using Task Manager at that point).