FULL PRODUCT VERSION :
java 10-ea 2018-03-20
Java(TM) SE Runtime Environment 18.3 (build 10-ea+42)
Java HotSpot(TM) 64-Bit Server VM 18.3 (build 10-ea+42, mixed mode)


ADDITIONAL OS VERSION INFORMATION :
Linux 4.10.0-37-generic #41-Ubuntu SMP Fri Oct 6 20:20:37 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux


A DESCRIPTION OF THE PROBLEM :
NPE in PickResultChooser.processOffer when using Node::setViewOrder.




ERROR MESSAGES/STACK TRACES THAT OCCUR :
Exception in thread "JavaFX Application Thread" java.lang.NullPointerException
at javafx.graphics/com.sun.javafx.scene.input.PickResultChooser.processOffer(PickResultChooser.java:185)
at javafx.graphics/com.sun.javafx.scene.input.PickResultChooser.offer(PickResultChooser.java:143)
at javafx.graphics/javafx.scene.Node.doComputeIntersects(Node.java:5238)
at javafx.graphics/javafx.scene.Node.access$600(Node.java:398)
at javafx.graphics/javafx.scene.Node$1.doComputeIntersects(Node.java:456)
at javafx.graphics/com.sun.javafx.scene.NodeHelper.computeIntersectsImpl(NodeHelper.java:194)
at javafx.graphics/com.sun.javafx.scene.NodeHelper.computeIntersects(NodeHelper.java:135)
at javafx.graphics/javafx.scene.Node.intersects(Node.java:5209)
at javafx.graphics/javafx.scene.Node.doPickNodeLocal(Node.java:5146)
at javafx.graphics/javafx.scene.Node.access$500(Node.java:398)
at javafx.graphics/javafx.scene.Node$1.doPickNodeLocal(Node.java:450)
at javafx.graphics/com.sun.javafx.scene.NodeHelper.pickNodeLocalImpl(NodeHelper.java:189)
at javafx.graphics/com.sun.javafx.scene.NodeHelper.pickNodeLocal(NodeHelper.java:130)
at javafx.graphics/javafx.scene.Node.pickNode(Node.java:5178)
at javafx.graphics/javafx.scene.Parent.pickChildrenNode(Parent.java:810)
at javafx.graphics/javafx.scene.Parent$1.pickChildrenNode(Parent.java:143)
at javafx.graphics/com.sun.javafx.scene.ParentHelper.pickChildrenNode(ParentHelper.java:120)
at javafx.graphics/javafx.scene.layout.Region.doPickNodeLocal(Region.java:3162)
at javafx.graphics/javafx.scene.layout.Region.access$600(Region.java:149)
at javafx.graphics/javafx.scene.layout.Region$1.doPickNodeLocal(Region.java:186)
at javafx.graphics/com.sun.javafx.scene.layout.RegionHelper.pickNodeLocalImpl(RegionHelper.java:104)
at javafx.graphics/com.sun.javafx.scene.NodeHelper.pickNodeLocal(NodeHelper.java:130)
at javafx.graphics/javafx.scene.Node.pickNode(Node.java:5178)
at javafx.graphics/javafx.scene.Parent.pickChildrenNode(Parent.java:810)
at javafx.graphics/javafx.scene.Parent$1.pickChildrenNode(Parent.java:143)
at javafx.graphics/com.sun.javafx.scene.ParentHelper.pickChildrenNode(ParentHelper.java:120)
at javafx.graphics/javafx.scene.layout.Region.doPickNodeLocal(Region.java:3162)
at javafx.graphics/javafx.scene.layout.Region.access$600(Region.java:149)
at javafx.graphics/javafx.scene.layout.Region$1.doPickNodeLocal(Region.java:186)
at javafx.graphics/com.sun.javafx.scene.layout.RegionHelper.pickNodeLocalImpl(RegionHelper.java:104)
at javafx.graphics/com.sun.javafx.scene.NodeHelper.pickNodeLocal(NodeHelper.java:130)
at javafx.graphics/javafx.scene.Node.pickNode(Node.java:5178)
at javafx.graphics/javafx.scene.Parent.pickChildrenNode(Parent.java:810)
at javafx.graphics/javafx.scene.Parent$1.pickChildrenNode(Parent.java:143)
at javafx.graphics/com.sun.javafx.scene.ParentHelper.pickChildrenNode(ParentHelper.java:120)
at javafx.graphics/javafx.scene.layout.Region.doPickNodeLocal(Region.java:3162)
at javafx.graphics/javafx.scene.layout.Region.access$600(Region.java:149)
at javafx.graphics/javafx.scene.layout.Region$1.doPickNodeLocal(Region.java:186)
at javafx.graphics/com.sun.javafx.scene.layout.RegionHelper.pickNodeLocalImpl(RegionHelper.java:104)
at javafx.graphics/com.sun.javafx.scene.NodeHelper.pickNodeLocal(NodeHelper.java:130)
at javafx.graphics/javafx.scene.Node.pickNode(Node.java:5178)
at javafx.graphics/javafx.scene.Parent.pickChildrenNode(Parent.java:810)
at javafx.graphics/javafx.scene.Parent$1.pickChildrenNode(Parent.java:143)
at javafx.graphics/com.sun.javafx.scene.ParentHelper.pickChildrenNode(ParentHelper.java:120)
at javafx.graphics/javafx.scene.layout.Region.doPickNodeLocal(Region.java:3162)
at javafx.graphics/javafx.scene.layout.Region.access$600(Region.java:149)
at javafx.graphics/javafx.scene.layout.Region$1.doPickNodeLocal(Region.java:186)
at javafx.graphics/com.sun.javafx.scene.layout.RegionHelper.pickNodeLocalImpl(RegionHelper.java:104)
at javafx.graphics/com.sun.javafx.scene.NodeHelper.pickNodeLocal(NodeHelper.java:130)
at javafx.graphics/javafx.scene.Node.pickNode(Node.java:5178)
at javafx.graphics/javafx.scene.Parent.pickChildrenNode(Parent.java:810)
at javafx.graphics/javafx.scene.Parent$1.pickChildrenNode(Parent.java:143)
at javafx.graphics/com.sun.javafx.scene.ParentHelper.pickChildrenNode(ParentHelper.java:120)
at javafx.graphics/javafx.scene.layout.Region.doPickNodeLocal(Region.java:3162)
at javafx.graphics/javafx.scene.layout.Region.access$600(Region.java:149)
at javafx.graphics/javafx.scene.layout.Region$1.doPickNodeLocal(Region.java:186)
at javafx.graphics/com.sun.javafx.scene.layout.RegionHelper.pickNodeLocalImpl(RegionHelper.java:104)
at javafx.graphics/com.sun.javafx.scene.NodeHelper.pickNodeLocal(NodeHelper.java:130)
at javafx.graphics/javafx.scene.Node.pickNode(Node.java:5178)
at javafx.graphics/javafx.scene.Scene$MouseHandler.pickNode(Scene.java:4018)
at javafx.graphics/javafx.scene.Scene$MouseHandler.access$1400(Scene.java:3604)
at javafx.graphics/javafx.scene.Scene.pick(Scene.java:2054)
at javafx.graphics/javafx.scene.Scene.access$6900(Scene.java:173)
at javafx.graphics/javafx.scene.Scene$MouseHandler.process(Scene.java:3830)
at javafx.graphics/javafx.scene.Scene$MouseHandler.access$1300(Scene.java:3604)
at javafx.graphics/javafx.scene.Scene$MouseHandler$1.run(Scene.java:3640)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$9(PlatformImpl.java:418)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$10(PlatformImpl.java:417)
at javafx.graphics/com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:96)
at javafx.graphics/com.sun.glass.ui.gtk.GtkApplication._runLoop(Native Method)
at javafx.graphics/com.sun.glass.ui.gtk.GtkApplication.lambda$runLoop$11(GtkApplication.java:277)
at java.base/java.lang.Thread.run(Thread.java:844)

REPRODUCIBILITY :
This bug can be reproduced often.