Can't register RunnableCanvas
java.security.AccessControlException: access denied (java.lang.RuntimePermission modifyThreadGroup)
	at java.security.AccessControlContext.checkPermission(AccessControlContext.java:272)
	at java.security.AccessController.checkPermission(AccessController.java:399)
	at java.lang.SecurityManager.checkPermission(SecurityManager.java:545)
	at org.netbeans.core.execution.TopSecurityManager.checkPermission(TopSecurityManager.java:243)
	at java.lang.SecurityManager.checkAccess(SecurityManager.java:733)
	at java.lang.ThreadGroup.checkAccess(ThreadGroup.java:279)
	at java.lang.Thread.init(Thread.java:265)
	at java.lang.Thread.<init>(Thread.java:330)
	at javax.swing.SystemEventQueueUtilities.getThreadGroupSafely(SystemEventQueueUtilities.java:413)
	at javax.swing.SystemEventQueueUtilities.access$300(SystemEventQueueUtilities.java:35)
	at javax.swing.SystemEventQueueUtilities$RunnableCanvas.<init>(SystemEventQueueUtilities.java:448)
	at javax.swing.SystemEventQueueUtilities.addRunnableCanvas(SystemEventQueueUtilities.java:183)
	at javax.swing.JRootPane.addNotify(JRootPane.java:482)
	at java.awt.Container.addNotify(Container.java:1579)
	at java.awt.Window.addNotify(Window.java:351)
	at java.awt.Frame.addNotify(Frame.java:361)
	at java.awt.Window.pack(Window.java:369)
	at Fr1.initComponents(Fr1.java:48)
	at Fr1.<init>(Fr1.java:17)
	at java.lang.Class.newInstance0(Native Method)
	at java.lang.Class.newInstance(Class.java:237)
	at org.openide.loaders.InstanceSupport.instanceCreate(InstanceSupport.java:203)
	at org.openide.actions.CustomizeBeanAction.customize(CustomizeBeanAction.java:131)
	at org.openide.actions.CustomizeBeanAction.performAction(CustomizeBeanAction.java:53)
	at org.openide.util.actions.NodeAction.performAction(NodeAction.java:180)
	at org.openide.util.actions.NodeAction.actionPerformed(NodeAction.java:171)
	at org.netbeans.core.ModuleActions$1.run(ModuleActions.java:105)
	at org.openide.util.Task.run(Task.java:152)
	at org.openide.util.RequestProcessor$ProcessorThread.run(RequestProcessor.java:622)