Of course it's impossible to provide finite number of steps to get guaranteed OOM exception on arbitrary machine. But sometimes it's enough to move and resize image for 3-5 minutes.
Here's the stack I've got for it:

com.oracle.javafx.scenebuilder.app.SceneBuilderApp$SceneBuilderUncaughtExceptionHandler uncaughtException
SEVERE: An exception was thrown:
java.lang.OutOfMemoryError: Java heap space
 at com.sun.javafx.tk.quantum.PixelUtils.imageToPixels(PixelUtils.java:85)
 at com.sun.javafx.tk.quantum.QuantumClipboard.placeImage(QuantumClipboard.java:442)
 at com.sun.javafx.tk.quantum.QuantumClipboard.putContentToPeer(QuantumClipboard.java:593)
 at com.sun.javafx.tk.quantum.QuantumClipboard.flush(QuantumClipboard.java:269)
 at com.sun.javafx.tk.quantum.QuantumToolkit.startDrag(QuantumToolkit.java:1150)
 at javafx.scene.Scene$DnDGesture.dragDetectedProcessed(Scene.java:2940)
 at javafx.scene.Scene$DnDGesture.process(Scene.java:3009)
 at javafx.scene.Scene$DnDGesture.access$8400(Scene.java:2896)
 at javafx.scene.Scene$MouseHandler.process(Scene.java:3762)
 at javafx.scene.Scene$MouseHandler.access$1800(Scene.java:3471)
 at javafx.scene.Scene.impl_processMouseEvent(Scene.java:1695)
 at javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2486)
 at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:314)
 at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:243)
 at java.security.AccessController.doPrivileged(Native Method)
 at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:345)
 at com.sun.glass.ui.View.handleMouseEvent(View.java:526)
 at com.sun.glass.ui.View.notifyMouse(View.java:898)
 at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
 at com.sun.glass.ui.win.WinApplication.access$300(WinApplication.java:39)
 at com.sun.glass.ui.win.WinApplication$4$1.run(WinApplication.java:112)
 at java.lang.Thread.run(Thread.java:744)



 com.oracle.javafx.scenebuilder.app.SceneBuilderApp$SceneBuilderUncaughtExceptionHandler uncaughtException
SEVERE: An exception was thrown:
java.lang.AssertionError
 at com.oracle.javafx.scenebuilder.kit.editor.panel.content.gesture.mouse.SelectAndMoveGesture.mouseDragDetected(SelectAndMoveGesture.java:188)
 at com.oracle.javafx.scenebuilder.kit.editor.panel.content.gesture.mouse.AbstractMouseDragGesture$1.handle(AbstractMouseDragGesture.java:84)
 at com.oracle.javafx.scenebuilder.kit.editor.panel.content.gesture.mouse.AbstractMouseDragGesture$1.handle(AbstractMouseDragGesture.java:80)
 at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86)
 at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
 at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
 at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
 at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
 at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
 at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
 at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
 at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
 at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
 at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
 at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
 at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
 at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
 at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
 at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
 at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
 at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
 at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
 at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54)
 at javafx.event.Event.fireEvent(Event.java:204)
 at javafx.scene.Scene$DnDGesture.fireEvent(Scene.java:2920)
 at javafx.scene.Scene$DnDGesture.process(Scene.java:2999)
 at javafx.scene.Scene$DnDGesture.access$8400(Scene.java:2896)
 at javafx.scene.Scene$MouseHandler.process(Scene.java:3762)
 at javafx.scene.Scene$MouseHandler.access$1800(Scene.java:3471)
 at javafx.scene.Scene.impl_processMouseEvent(Scene.java:1695)
 at javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2486)
 at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:314)
 at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:243)
 at java.security.AccessController.doPrivileged(Native Method)
 at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:345)
 at com.sun.glass.ui.View.handleMouseEvent(View.java:526)
 at com.sun.glass.ui.View.notifyMouse(View.java:898)
 at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
 at com.sun.glass.ui.win.WinApplication.access$300(WinApplication.java:39)
 at com.sun.glass.ui.win.WinApplication$4$1.run(WinApplication.java:112)
 at java.lang.Thread.run(Thread.java:744)