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This issue was reported manually by javatlacati. It already has 1 duplicates Build: NetBeans IDE 8.1 (Build 201510222201) VM: Java HotSpot(TM) 64-Bit Server VM, 24.79-b02, Java(TM) SE Runtime Environment, 1.7.0_79-b15 OS: Windows 8 User Comments: javatlacati: Html WYSIWYG Doesn't work even updating platform Stacktrace: java.lang.ClassNotFoundException: javafx.embed.swing.JFXPanel at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(AccessController.java:0) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:425) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
Created attachment 160000 [details] stacktrace
Not sure what went wrong. But this should be "fixed" in NetBeans 8.2, since 8.2 requires JDK 8 as a minimum, which contains JavaFX.