Can't now load swagger .yaml file - internal IDE error

[mscodemonkey]

Detailed description

In PHPStorm i'm getting this error when loading a swagger.yaml file (spec 3.0.0)

java.lang.NoClassDefFoundError: javafx/embed/swing/JFXPanel
	at com.phpinnacle.redoc.RedocPanel.<init>(RedocPanel.java:26)
	at com.phpinnacle.redoc.RedocEditor.<init>(RedocEditor.java:24)
	at com.phpinnacle.redoc.RedocApplication.createEditor(RedocApplication.java:55)
	at com.phpinnacle.redoc.RedocEditorProvider.createEditor(RedocEditorProvider.java:22)
	at com.intellij.openapi.fileEditor.impl.FileEditorManagerImpl.dumbModeFinished(FileEditorManagerImpl.java:213)
	at com.intellij.openapi.fileEditor.impl.FileEditorManagerImpl.access$300(FileEditorManagerImpl.java:106)
	at com.intellij.openapi.fileEditor.impl.FileEditorManagerImpl$2.lambda$exitDumbMode$0(FileEditorManagerImpl.java:159)
	at com.intellij.openapi.application.TransactionGuardImpl$2.run(TransactionGuardImpl.java:201)
	at com.intellij.openapi.application.impl.ApplicationImpl.runIntendedWriteActionOnCurrentThread(ApplicationImpl.java:802)
	at com.intellij.openapi.application.impl.ApplicationImpl.lambda$invokeLater$4(ApplicationImpl.java:322)
	at com.intellij.openapi.application.impl.FlushQueue.doRun(FlushQueue.java:84)
	at com.intellij.openapi.application.impl.FlushQueue.runNextEvent(FlushQueue.java:132)
	at com.intellij.openapi.application.impl.FlushQueue.flushNow(FlushQueue.java:47)
	at com.intellij.openapi.application.impl.FlushQueue$FlushNow.run(FlushQueue.java:188)
	at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:313)
	at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:776)
	at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:727)
	at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:721)
	at java.base/java.security.AccessController.doPrivileged(Native Method)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85)
	at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:746)
	at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.java:967)
	at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:839)
	at com.intellij.ide.IdeEventQueue.lambda$dispatchEvent$8(IdeEventQueue.java:450)
	at com.intellij.openapi.progress.impl.CoreProgressManager.computePrioritized(CoreProgressManager.java:744)
	at com.intellij.ide.IdeEventQueue.lambda$dispatchEvent$9(IdeEventQueue.java:449)
	at com.intellij.openapi.application.impl.ApplicationImpl.runIntendedWriteActionOnCurrentThread(ApplicationImpl.java:802)
	at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:497)
	at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
	at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90) 

Make it clear if the issue is a bug, an enhancement or just a question.

Seems to be a bug.

Why is this change important to you? How would you use it?

It prevents the .yaml file from loading in the editor.

Your environment

Include as many relevant details about the environment you experienced the bug in and how to reproduce it.

PhpStorm 2020.2
Build #PS-202.6397.115, built on July 29, 2020
Runtime version: 11.0.7+10-b944.20 x86_64
VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o.
macOS 10.15.6

Reproduce by clicking on a swagger .yaml file. An IDE internal error occurs and the red exclamation point icon shows in the bottom right.

[cormip]

Also have the same problem as above (#7, #10)

WebStorm 2020.2.3
Build #WS-202.7660.23, built on September 30, 2020
Runtime version: 11.0.8+10-b944.34 amd64
VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o.
Windows 10 10.0
GC: ParNew, ConcurrentMarkSweep
Memory: 1981M
Cores: 8