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java.lang.ClassCastException: org.eclipse.swt.layout.GridData cannot be cast to org.eclipse.swt.layout.FillData	at org.eclipse.swt.layout.FillLayout.computeChildSize(FillLayout.java:144)	at org.eclipse.swt.layout.FillLayout.computeSize(FillLayout.java:122)	at org.eclipse.swt.widgets.Composite.computeSize(Composite.java:236)	at org.eclipse.ui.forms.widgets.LayoutComposite.computeSize(LayoutComposite.java:35)	at org.eclipse.ui.forms.widgets.SizeCache.controlComputeSize(SizeCache.java:390)	at org.eclipse.ui.forms.widgets.SizeCache.computeMinimumWidth(SizeCache.java:429)	at org.eclipse.ui.forms.widgets.SizeCache.computeSize(SizeCache.java:189)	at org.eclipse.ui.forms.widgets.Form$FormLayout.computeSize(Form.java:140)	at org.eclipse.ui.forms.widgets.Form.computeSize(Form.java:194)	at org.eclipse.ui.forms.widgets.SizeCache.controlComputeSize(SizeCache.java:390)	at org.eclipse.ui.forms.widgets.SizeCache.computeMinimumHeight(SizeCache.java:477)	at org.eclipse.ui.forms.widgets.SizeCache.computeSize(SizeCache.java:200)	at org.eclipse.ui.forms.widgets.SharedScrolledComposite.reflow(SharedScrolledComposite.java:194)	at org.eclipse.ui.forms.widgets.SharedScrolledComposite.scheduleReflow(SharedScrolledComposite.java:242)	at org.eclipse.ui.forms.widgets.SharedScrolledComposite.access$1(SharedScrolledComposite.java:227)	at org.eclipse.ui.forms.widgets.SharedScrolledComposite$1.handleEvent(SharedScrolledComposite.java:67)	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4130)	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1457)	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1480)	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1461)	at org.eclipse.swt.widgets.Control.resized(Control.java:3267)	at org.eclipse.swt.widgets.Composite.resized(Composite.java:930)	at org.eclipse.swt.widgets.Control.setFrameSize(Control.java:3799)	at org.eclipse.swt.widgets.Display.windowProc(Display.java:5454)	at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method)	at org.eclipse.swt.internal.cocoa.NSView.setFrame(NSView.java:267)	at org.eclipse.swt.widgets.Control.setBounds(Control.java:3532)	at org.eclipse.swt.widgets.Control.setBounds(Control.java:3521)	at org.eclipse.swt.layout.FillLayout.layout(FillLayout.java:201)	at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1194)	at org.eclipse.swt.widgets.Composite.resized(Composite.java:933)	at org.eclipse.swt.widgets.Control.setFrameSize(Control.java:3799)	at org.eclipse.swt.widgets.Display.windowProc(Display.java:5454)	at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method)	at org.eclipse.swt.internal.cocoa.NSView.setFrame(NSView.java:267)	at org.eclipse.swt.widgets.Control.setBounds(Control.java:3532)	at org.eclipse.swt.widgets.Control.setBounds(Control.java:3567)	at org.eclipse.swt.custom.CTabFolderLayout.layout(CTabFolderLayout.java:84)	at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1194)	at org.eclipse.swt.widgets.Composite.resized(Composite.java:933)	at org.eclipse.swt.widgets.Control.setFrameSize(Control.java:3799)	at org.eclipse.swt.widgets.Display.windowProc(Display.java:5454)	at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method)	at org.eclipse.swt.internal.cocoa.NSView.setFrame(NSView.java:267)	at org.eclipse.swt.widgets.Control.setBounds(Control.java:3532)	at org.eclipse.swt.widgets.Control.setBounds(Control.java:3521)	at org.eclipse.swt.layout.FillLayout.layout(FillLayout.java:201)	at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1194)	at org.eclipse.swt.widgets.Composite.resized(Composite.java:933)	at org.eclipse.swt.widgets.Control.setFrameSize(Control.java:3799)	at org.eclipse.swt.widgets.Display.windowProc(Display.java:5454)	at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method)	at org.eclipse.swt.internal.cocoa.NSView.setFrame(NSView.java:267)	at org.eclipse.swt.widgets.Control.setBounds(Control.java:3532)	at org.eclipse.swt.widgets.Control.setBounds(Control.java:3521)	at org.eclipse.swt.layout.FillLayout.layout(FillLayout.java:216)	at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1194)	at org.eclipse.swt.widgets.Composite.resized(Composite.java:933)	at org.eclipse.swt.widgets.Control.setFrameSize(Control.java:3799)	at org.eclipse.swt.widgets.Display.windowProc(Display.java:5454)	at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method)	at org.eclipse.swt.internal.cocoa.NSView.setFrame(NSView.java:267)	at org.eclipse.swt.widgets.Control.setBounds(Control.java:3532)	at org.eclipse.swt.widgets.Control.setBounds(Control.java:3567)	at org.eclipse.e4.ui.widgets.CTabFolderLayout.layout(CTabFolderLayout.java:113)	at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1194)	at org.eclipse.swt.widgets.Composite.resized(Composite.java:933)	at org.eclipse.swt.widgets.Control.setFrameSize(Control.java:3799)	at org.eclipse.swt.widgets.Display.windowProc(Display.java:5454)	at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method)	at org.eclipse.swt.internal.cocoa.NSView.setFrame(NSView.java:267)	at org.eclipse.swt.widgets.Control.setBounds(Control.java:3532)	at org.eclipse.swt.widgets.Control.setBounds(Control.java:3521)	at org.eclipse.swt.layout.FillLayout.layout(FillLayout.java:201)	at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1194)	at org.eclipse.swt.widgets.Composite.resized(Composite.java:933)	at org.eclipse.swt.widgets.Control.setFrameSize(Control.java:3799)	at org.eclipse.swt.widgets.Display.windowProc(Display.java:5454)	at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method)	at org.eclipse.swt.internal.cocoa.NSView.setFrame(NSView.java:267)	at org.eclipse.swt.widgets.Control.setBounds(Control.java:3532)	at org.eclipse.swt.widgets.Control.setBounds(Control.java:3521)	at org.eclipse.swt.layout.FillLayout.layout(FillLayout.java:201)	at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1194)	at org.eclipse.swt.widgets.Composite.resized(Composite.java:933)	at org.eclipse.swt.widgets.Control.setFrameSize(Control.java:3799)	at org.eclipse.swt.widgets.Display.windowProc(Display.java:5454)	at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method)	at org.eclipse.swt.internal.cocoa.NSView.setFrame(NSView.java:267)	at org.eclipse.swt.widgets.Control.setBounds(Control.java:3532)	at org.eclipse.swt.widgets.Control.setBounds(Control.java:3567)	at org.eclipse.e4.ui.workbench.renderers.swt.SashLayout.setRectangle(SashLayout.java:303)	at org.eclipse.e4.ui.workbench.renderers.swt.SashLayout.tileSubNodes(SashLayout.java:248)	at org.eclipse.e4.ui.workbench.renderers.swt.SashLayout.tileSubNodes(SashLayout.java:291)	at org.eclipse.e4.ui.workbench.renderers.swt.SashLayout.tileSubNodes(SashLayout.java:291)	at org.eclipse.e4.ui.workbench.renderers.swt.SashLayout.tileSubNodes(SashLayout.java:291)	at org.eclipse.e4.ui.workbench.renderers.swt.SashLayout.layout(SashLayout.java:158)	at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1194)	at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1200)	at org.eclipse.swt.widgets.Composite.setLayoutDeferred(Composite.java:1078)	at org.eclipse.swt.widgets.Display.runDeferredLayouts(Display.java:4000)	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3601)	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1015)	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:909)	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:85)	at org.eclipse.ui.internal.Workbench$4.run(Workbench.java:580)	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:535)	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:124)	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:353)	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:180)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:597)	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:629)	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:584)	at org.eclipse.equinox.launcher.Main.run(Main.java:1438)