FULL PRODUCT VERSION :
java version "1.8.0_51"
Java(TM) SE Runtime Environment (build 1.8.0_51-b16)
Java HotSpot(TM) Client VM (build 25.51-b03, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
Windows 7/8, MacOS X 10, Linux

EXTRA RELEVANT SYSTEM CONFIGURATION :
Java 8 update 51

A DESCRIPTION OF THE PROBLEM :
Technical information:

The problem is related to class javafx.scene.input.Clipboard. The Method getSystemClipboard() contains request for all permissions and does not work without them. It's a bug - code should ask for "accessClipboard".

Unfortunately, SAP code is not involved and we are not able to write workaround in our code to prevent this issue. Oracle's team should fix it inside the JavaFX class.


Source code for related class:
package javafx.scene.input;


...
    /**
     * Gets the current system clipboard, through which data can be stored and
     * retrieved. There is ever only one system clipboard for a JavaFX application.
     * @return The single system clipboard, used for cut / copy / paste operations
     */
    public static Clipboard getSystemClipboard() {
        try {
            final SecurityManager securityManager = System.getSecurityManager();
            if (securityManager != null) {
-->                securityManager.checkPermission(new AllPermission());
            }
            return getSystemClipboardImpl();
        } catch (final SecurityException e) {
            return getLocalClipboardImpl();
        }
    }
.....

Stacktrace for call
Daemon System Thread [JavaFX Application Thread] (Suspended (entry into method <init> in AllPermission))            
            AllPermission.<init>() line: 66 [local variables unavailable] 
            Clipboard.getSystemClipboard() line: 173    
            PasteboardImpl.<init>() line: 38        
            UtilitiesImpl.createPasteboard() line: 39       
            WCPasteboard.<clinit>() line: 43      
            WebPage.twkProcessKeyEvent(long, int, String, String, int, boolean, boolean, boolean, boolean) line: not available [native method]       
            WebPage.dispatchKeyEvent(WCKeyEvent) line: 737        
            WebView.processKeyEvent(KeyEvent) line: 1062  
            WebView.lambda$registerEventHandlers$31(KeyEvent) line: 1140                     
            453037847.handle(Event) line: not available            
            CompositeEventHandler$NormalEventHandlerRecord<T>.handleBubblingEvent(T) line: 218   
            CompositeEventHandler<T>.dispatchBubblingEvent(Event) line: 80        
            EventHandlerManager.dispatchBubblingEvent(EventType<Event>, Event) line: 238      
            EventHandlerManager.dispatchBubblingEvent(Event) line: 191    
            NodeEventDispatcher(CompositeEventDispatcher).dispatchBubblingEvent(Event) line: 59       
            NodeEventDispatcher(BasicEventDispatcher).dispatchEvent(Event, EventDispatchChain) line: 58       
            EventDispatchChainImpl.dispatchEvent(Event) line: 114   
            SceneEventDispatcher(BasicEventDispatcher).dispatchEvent(Event, EventDispatchChain) line: 56      
            EventDispatchChainImpl.dispatchEvent(Event) line: 114   
            WindowEventDispatcher(BasicEventDispatcher).dispatchEvent(Event, EventDispatchChain) line: 56  
            EventDispatchChainImpl.dispatchEvent(Event) line: 114   
            EventUtil.fireEventImpl(EventDispatchChain, EventTarget, Event) line: 74        
            EventUtil.fireEvent(EventTarget, Event) line: 54    
            Event.fireEvent(EventTarget, Event) line: 198        
            Scene$KeyHandler.process(KeyEvent) line: 3965   
            Scene$KeyHandler.access$1800(Scene$KeyHandler, KeyEvent) line: 3911        
            Scene.impl_processKeyEvent(KeyEvent) line: 2040           
            Scene$ScenePeerListener.keyEvent(KeyEvent) line: 2502 
            EmbeddedScene.lambda$null$297(int, char[], int, int) line: 305     
            1430468791.run() line: not available 
            AccessController.doPrivileged(PrivilegedAction<T>, AccessControlContext) line: not available [native method]          
            EmbeddedScene.lambda$keyEvent$298(int, char[], int, int) line: 291       
            438625584.run() line: not available   
            PlatformImpl.lambda$null$170(Runnable) line: 295           
            1760710214.run() line: not available 
            AccessController.doPrivileged(PrivilegedAction<T>, AccessControlContext) line: not available [native method]          
            PlatformImpl.lambda$runLater$171(Runnable, AccessControlContext) line: 294            
            770953327.run() line: not available   
            InvokeLaterDispatcher$Future.run() line: 95 [local variables unavailable]  


REGRESSION.  Last worked in version 8u51

ADDITIONAL REGRESSION INFORMATION: 
Lets check the getSystemClipboard() method in XToolkit class:

    public  Clipboard getSystemClipboard() {
        SecurityManager security = System.getSecurityManager();
        if (security != null) {
            security.checkPermission(SecurityConstants.AWT.ACCESS_CLIPBOARD_PERMISSION);
        }
        synchronized (this) {
            if (clipboard == null) {
                clipboard = new XClipboard("System", "CLIPBOARD");
            }
        }
        return clipboard;
    }


***
As You can see XToolkit is checking for
security.checkPermission(SecurityConstants.AWT.ACCESS_CLIPBOARD_PERMISSION);

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Any test application with Swing JFrame + JFXPanel + FX inputField.

Important is initialize SecurityManager without AllPermissions!

try to copy/paste application from
https://javafx-jira.kenai.com/browse/RT-38922

but You need to add your own SecurityManager

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Correction in JavaFX Clipboard class

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
try to copy/paste application from
https://javafx-jira.kenai.com/browse/RT-38922

but You need to add your own SecurityManager
---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
Provide AllPermissions for your application.

SUPPORT :
YES