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Build: NetBeans IDE Dev (Build 201008050001) VM: Java HotSpot(TM) Client VM, 16.3-b01, Java(TM) SE Runtime Environment, 1.6.0_20-b02 OS: Windows XP Stacktrace: java.lang.NullPointerException at java.awt.Rectangle.contains(Rectangle.java:635) at org.netbeans.modules.javafx.composer.design.control.SceneMouseInputAdapter.getGesture(SceneMouseInputAdapter.java:238) at org.netbeans.modules.javafx.composer.design.control.SceneMouseInputAdapter.mouseDragged(SceneMouseInputAdapter.java:209) at java.awt.Component.processMouseMotionEvent(Component.java:6311) at javax.swing.JComponent.processMouseMotionEvent(JComponent.java:3285) at java.awt.Component.processEvent(Component.java:6032)
Created attachment 101227 [details] stacktrace
Product Version = NetBeans IDE Dev (Build 201008050001) (#aa0e5782470f) Operating System = Windows XP version 5.1 running on x86 Java; VM; Vendor = 1.6.0_20; Java HotSpot(TM) Client VM 16.3-b01; Sun Microsystems Inc. Steps to reproduce: - create a new JavaFX desktop business application - drop a button on canvas Sometimes when I click on the button the exception pops up.