Stack trace: java.lang.NullPointerException: Cannot invoke "java.awt.Component.getPreferredSize()" because "component" is null at org.eclipse.wb.internal.swing.java6.model.SwingVisualMapper.getComponentPreferredSize(SwingVisualMapper.java:89) at org.netbeans.modules.form.layoutdesign.LayoutDesigner.endMoving(LayoutDesigner.java:592) at org.eclipse.wb.internal.layout.group.model.GroupLayoutSupport.command_create(GroupLayoutSupport.java:279) at org.eclipse.wb.internal.layout.group.gef.GroupLayoutEditPolicy2$4.executeEdit(GroupLayoutEditPolicy2.java:479) at org.eclipse.wb.core.gef.command.EditCommand.lambda$0(EditCommand.java:50) at org.eclipse.wb.internal.core.utils.execution.ExecutionUtils.run(ExecutionUtils.java:331) at org.eclipse.wb.core.gef.command.EditCommand.execute(EditCommand.java:50) at org.eclipse.wb.internal.gef.core.EditDomain.executeCommand(EditDomain.java:50) at org.eclipse.wb.gef.core.tools.Tool.executeCommand(Tool.java:170) at org.eclipse.wb.gef.core.tools.AbstractCreationTool.handleButtonUp(AbstractCreationTool.java:63) at org.eclipse.wb.gef.core.tools.Tool.mouseUp(Tool.java:268) at org.eclipse.wb.internal.gef.core.EditDomain.mouseUp(EditDomain.java:252) at org.eclipse.wb.internal.gef.graphical.EditEventManager.lambda$2(EditEventManager.java:153) at org.eclipse.wb.internal.draw2d.EventManager.delayEvent(EventManager.java:352) at org.eclipse.wb.internal.gef.graphical.EditEventManager.dispatchMouseReleased(EditEventManager.java:141) at org.eclipse.draw2d.LightweightSystem$EventHandler.mouseUp(LightweightSystem.java:598) at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:224) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4274) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1066) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4072) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3660) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1151) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:339) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1042) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:152) at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:639) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:339) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:546) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:173) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:152) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:208) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:143) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:109) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:439) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:271) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:568) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:651) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:588) at org.eclipse.equinox.launcher.Main.run(Main.java:1459) Full context stack trace: java.lang.NullPointerException: Cannot invoke "java.awt.Component.getPreferredSize()" because "component" is null at org.eclipse.wb.internal.swing.java6.model.SwingVisualMapper.getComponentPreferredSize(SwingVisualMapper.java:89) at org.netbeans.modules.form.layoutdesign.LayoutDesigner.endMoving(LayoutDesigner.java:592) at org.eclipse.wb.internal.layout.group.model.GroupLayoutSupport.command_create(GroupLayoutSupport.java:279) at org.eclipse.wb.internal.layout.group.gef.GroupLayoutEditPolicy2$4.executeEdit(GroupLayoutEditPolicy2.java:479) at org.eclipse.wb.core.gef.command.EditCommand.lambda$0(EditCommand.java:50) at org.eclipse.wb.internal.core.utils.execution.ExecutionUtils.run(ExecutionUtils.java:331) at org.eclipse.wb.core.gef.command.EditCommand.execute(EditCommand.java:50) at org.eclipse.wb.internal.gef.core.EditDomain.executeCommand(EditDomain.java:50) at org.eclipse.wb.gef.core.tools.Tool.executeCommand(Tool.java:170) at org.eclipse.wb.gef.core.tools.AbstractCreationTool.handleButtonUp(AbstractCreationTool.java:63) at org.eclipse.wb.gef.core.tools.Tool.mouseUp(Tool.java:268) at org.eclipse.wb.internal.gef.core.EditDomain.mouseUp(EditDomain.java:252) at org.eclipse.wb.internal.gef.graphical.EditEventManager.lambda$2(EditEventManager.java:153) at org.eclipse.wb.internal.draw2d.EventManager.delayEvent(EventManager.java:352) at org.eclipse.wb.internal.gef.graphical.EditEventManager.dispatchMouseReleased(EditEventManager.java:141) at org.eclipse.draw2d.LightweightSystem$EventHandler.mouseUp(LightweightSystem.java:598) at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:224) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4274) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1066) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4072) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3660) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1151) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:339) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1042) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:152) at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:639) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:339) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:546) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:173) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:152) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:208) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:143) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:109) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:439) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:271) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:568) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:651) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:588) at org.eclipse.equinox.launcher.Main.run(Main.java:1459)