Bug 532258 - Memory leaks
Summary: Memory leaks
Status: VERIFIED FIXED
Alias: None
Product: Platform
Classification: Eclipse Project
Component: Text (show other bugs)
Version: 4.7.2   Edit
Hardware: PC Mac OS X
: P3 critical (vote)
Target Milestone: 4.8 RC1   Edit
Assignee: Dawid Pakula CLA
QA Contact:
URL:
Whiteboard:
Keywords: needinfo
Depends on:
Blocks:
 
Reported: 2018-03-09 14:38 EST by Maurizio Merli CLA
Modified: 2018-05-25 10:24 EDT (History)
6 users (show)

See Also:
daniel_megert: review+

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Description Maurizio Merli CLA 2018-03-09 14:38:38 EST 
Eclipse after some hours of work on Java Projects consume up to 8GB of ram.
Oxygen 4.7.2.
Mac OS X 10.13.3
Java 1.8.0_121
Comment 1 Andrey Loskutov CLA 2018-03-09 14:40:49 EST 
Please provide some useful information, in case of memory leaks this mean a memory dump or at least information which can give you jmap tool.
Comment 2 Maurizio Merli CLA 2018-03-09 15:07:49 EST 
The Java memory dump is ok.

jmap -histo:live <pid> give this result

Total       2620458      125801664

but if I look with Resource Monitor (Mac OS X) I can see that after 2 hours the RAM used is already 3GB (I set a max usage with -Xmx of 1GB).
Comment 3 Dawid Pakula CLA 2018-04-01 14:18:53 EDT 
I have same problem on Photon. After ~16 session with PHP OSX memory usage was increased to 8GB. Heap size is ok. How can I help?
Comment 4 Dawid Pakula CLA 2018-05-10 10:15:09 EDT 
I saw this also in Commiter EPP (mostly java editor + from time to time manifest and plugin.xml). 

Looks like leak growing during standard operations like:
close / open editor
navigation / scrollling
content assist

I have "show whitespace characters" enabled.
Comment 5 Dawid Pakula CLA 2018-05-10 11:03:08 EDT 
I play with sleak a little, after each open/close editor sleak shows me new images and colors. Most of them are css engine ctab bg color. I'm using dark theme.
Example traces:

java.lang.Error
	at org.eclipse.swt.graphics.Device.new_Object(Device.java:651)
	at org.eclipse.swt.graphics.Resource.init(Resource.java:86)
	at org.eclipse.swt.graphics.Image.<init>(Image.java:814)
	at org.eclipse.jface.text.source.LineNumberRulerColumn.doubleBufferPaint(LineNumberRulerColumn.java:726)
	at org.eclipse.jface.text.source.LineNumberRulerColumn.access$7(LineNumberRulerColumn.java:702)
	at org.eclipse.jface.text.source.LineNumberRulerColumn$4.paintControl(LineNumberRulerColumn.java:639)
	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:231)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:86)
	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4275)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1509)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1532)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1517)
	at org.eclipse.swt.widgets.Control.drawWidget(Control.java:1277)
	at org.eclipse.swt.widgets.Canvas.drawWidget(Canvas.java:172)
	at org.eclipse.swt.widgets.Widget.drawRect(Widget.java:773)
	at org.eclipse.swt.widgets.Canvas.drawRect(Canvas.java:166)
	at org.eclipse.swt.widgets.Display.windowProc(Display.java:5912)
	at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)
	at org.eclipse.swt.widgets.Display.applicationNextEventMatchingMask(Display.java:5166)
	at org.eclipse.swt.widgets.Display.applicationProc(Display.java:5590)
	at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method)
	at org.eclipse.swt.internal.cocoa.NSApplication.nextEventMatchingMask(NSApplication.java:94)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3710)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1150)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1039)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153)
	at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:681)
	at org.eclipse.ui.internal.Workbench$$Lambda$24/2021466012.run(Unknown Source)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:595)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:152)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:388)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:243)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:656)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:592)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1498)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1471)



java.lang.Error
	at org.eclipse.swt.graphics.Device.new_Object(Device.java:651)
	at org.eclipse.swt.graphics.Resource.init(Resource.java:86)
	at org.eclipse.swt.graphics.Image.<init>(Image.java:762)
	at org.eclipse.jface.resource.URLImageDescriptor.createImage(URLImageDescriptor.java:261)
	at org.eclipse.jface.resource.ImageDescriptor.createImage(ImageDescriptor.java:240)
	at org.eclipse.jface.resource.ImageDescriptor.createImage(ImageDescriptor.java:218)
	at org.eclipse.ui.internal.WorkingSetMenuContributionItem.fill(WorkingSetMenuContributionItem.java:87)
	at org.eclipse.ui.actions.CompoundContributionItem.fill(CompoundContributionItem.java:61)
	at org.eclipse.jface.action.MenuManager.doItemFill(MenuManager.java:728)
	at org.eclipse.jface.action.MenuManager.update(MenuManager.java:810)
	at org.eclipse.jface.action.MenuManager.update(MenuManager.java:669)
	at org.eclipse.e4.ui.workbench.renderers.swt.MenuManagerRenderer.scheduleManagerUpdate(MenuManagerRenderer.java:1219)
	at org.eclipse.e4.ui.workbench.renderers.swt.MenuManagerRenderer.access$0(MenuManagerRenderer.java:1214)
	at org.eclipse.e4.ui.workbench.renderers.swt.MenuManagerRenderer$1.changed(MenuManagerRenderer.java:555)
	at org.eclipse.e4.core.internal.contexts.TrackableComputationExt.update(TrackableComputationExt.java:114)
	at org.eclipse.e4.core.internal.contexts.EclipseContext.processScheduled(EclipseContext.java:355)
	at org.eclipse.e4.core.internal.contexts.EclipseContext.set(EclipseContext.java:370)
	at org.eclipse.e4.core.internal.contexts.EclipseContext.activate(EclipseContext.java:674)
	at org.eclipse.e4.core.internal.contexts.EclipseContext.activateBranch(EclipseContext.java:680)
	at org.eclipse.e4.ui.internal.workbench.PartActivationHistory.activate(PartActivationHistory.java:53)
	at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.activate(PartServiceImpl.java:746)
	at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.activate(PartServiceImpl.java:681)
	at org.eclipse.e4.ui.internal.workbench.swt.AbstractPartRenderer.activate(AbstractPartRenderer.java:94)
	at org.eclipse.e4.ui.workbench.renderers.swt.ContributedPartRenderer.lambda$0(ContributedPartRenderer.java:60)
	at org.eclipse.e4.ui.workbench.renderers.swt.ContributedPartRenderer$$Lambda$213/252340996.handleEvent(Unknown Source)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:86)
	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4275)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1509)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1532)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1517)
	at org.eclipse.swt.widgets.Shell.setActiveControl(Shell.java:1621)
	at org.eclipse.swt.widgets.Control.sendMouseEvent(Control.java:3521)
	at org.eclipse.swt.widgets.Control.mouseEvent(Control.java:2626)
	at org.eclipse.swt.widgets.Control.mouseDown(Control.java:2635)
	at org.eclipse.swt.widgets.Display.windowProc(Display.java:5945)
	at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)
	at org.eclipse.swt.widgets.Widget.callSuper(Widget.java:232)
	at org.eclipse.swt.widgets.Widget.windowSendEvent(Widget.java:2155)
	at org.eclipse.swt.widgets.Shell.windowSendEvent(Shell.java:2411)
	at org.eclipse.swt.widgets.Display.windowProc(Display.java:6069)
	at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)
	at org.eclipse.swt.widgets.Display.applicationSendEvent(Display.java:5308)
	at org.eclipse.swt.widgets.Display.applicationProc(Display.java:5460)
	at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method)
	at org.eclipse.swt.internal.cocoa.NSApplication.sendEvent(NSApplication.java:128)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3713)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1150)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1039)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153)
	at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:681)
	at org.eclipse.ui.internal.Workbench$$Lambda$24/2021466012.run(Unknown Source)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:595)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:152)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:388)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:243)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:656)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:592)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1498)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1471)

java.lang.Error
	at org.eclipse.swt.graphics.Device.new_Object(Device.java:651)
	at org.eclipse.swt.graphics.Resource.init(Resource.java:86)
	at org.eclipse.swt.graphics.Image.<init>(Image.java:520)
	at org.eclipse.swt.custom.CTabFolder.updateBkImages(CTabFolder.java:3882)
	at org.eclipse.swt.custom.CTabFolder.setBackground(CTabFolder.java:2353)
	at org.eclipse.e4.ui.css.swt.helpers.CSSSWTColorHelper.setBackground(CSSSWTColorHelper.java:357)
	at org.eclipse.e4.ui.css.swt.properties.css2.CSSPropertyBackgroundSWTHandler.applyCSSPropertyBackgroundColor(CSSPropertyBackgroundSWTHandler.java:73)
	at org.eclipse.e4.ui.css.core.dom.properties.css2.AbstractCSSPropertyBackgroundHandler.applyCSSProperty(AbstractCSSPropertyBackgroundHandler.java:35)
	at org.eclipse.e4.ui.css.swt.properties.css2.CSSPropertyBackgroundSWTHandler.applyCSSProperty(CSSPropertyBackgroundSWTHandler.java:43)
	at org.eclipse.e4.ui.css.core.impl.engine.AbstractCSSEngine.applyCSSProperty(AbstractCSSEngine.java:755)
	at org.eclipse.e4.ui.css.core.impl.engine.AbstractCSSEngine.applyStyleDeclaration(AbstractCSSEngine.java:543)
	at org.eclipse.e4.ui.css.core.impl.engine.AbstractCSSEngine.applyStyles(AbstractCSSEngine.java:419)
	at org.eclipse.e4.ui.css.core.impl.engine.AbstractCSSEngine.applyStyles(AbstractCSSEngine.java:361)
	at org.eclipse.e4.ui.css.core.impl.engine.AbstractCSSEngine.applyStyles(AbstractCSSEngine.java:436)
	at org.eclipse.e4.ui.css.core.impl.engine.AbstractCSSEngine.applyStyles(AbstractCSSEngine.java:361)
	at org.eclipse.e4.ui.css.swt.internal.theme.ThemeEngine.applyStyles(ThemeEngine.java:546)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$7.setClassnameAndId(PartRenderingEngine.java:1322)
	at org.eclipse.e4.ui.workbench.renderers.swt.SWTPartRenderer.setCSSInfo(SWTPartRenderer.java:110)
	at org.eclipse.e4.ui.workbench.renderers.swt.SWTPartRenderer.styleElement(SWTPartRenderer.java:80)
	at org.eclipse.e4.ui.workbench.renderers.swt.StackRenderer.subscribeTopicActivateChanged(StackRenderer.java:516)
	at sun.reflect.GeneratedMethodAccessor46.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:55)
	at org.eclipse.e4.ui.internal.di.UIEventObjectSupplier$UIEventHandler$1.run(UIEventObjectSupplier.java:64)
	at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:233)
	at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:144)
	at org.eclipse.swt.widgets.Display.syncExec(Display.java:4888)
	at org.eclipse.e4.ui.internal.workbench.swt.E4Application$1.syncExec(E4Application.java:212)
	at org.eclipse.e4.ui.internal.di.UIEventObjectSupplier$UIEventHandler.handleEvent(UIEventObjectSupplier.java:61)
	at org.eclipse.equinox.internal.event.EventHandlerWrapper.handleEvent(EventHandlerWrapper.java:201)
	at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:196)
	at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:1)
	at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
	at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148)
	at org.eclipse.equinox.internal.event.EventAdminImpl.dispatchEvent(EventAdminImpl.java:135)
	at org.eclipse.equinox.internal.event.EventAdminImpl.sendEvent(EventAdminImpl.java:78)
	at org.eclipse.equinox.internal.event.EventComponent.sendEvent(EventComponent.java:39)
	at org.eclipse.e4.ui.services.internal.events.EventBroker.send(EventBroker.java:52)
	at org.eclipse.e4.ui.workbench.UIEvents.publishEvent(UIEvents.java:375)
	at org.eclipse.e4.ui.workbench.UIEvents.publishEvent(UIEvents.java:344)
	at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.activate(PartServiceImpl.java:718)
	at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.activate(PartServiceImpl.java:681)
	at org.eclipse.e4.ui.internal.workbench.swt.AbstractPartRenderer.activate(AbstractPartRenderer.java:94)
	at org.eclipse.e4.ui.workbench.renderers.swt.ContributedPartRenderer.lambda$0(ContributedPartRenderer.java:60)
	at org.eclipse.e4.ui.workbench.renderers.swt.ContributedPartRenderer$$Lambda$213/252340996.handleEvent(Unknown Source)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:86)
	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4275)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1509)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1532)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1517)
	at org.eclipse.swt.widgets.Shell.setActiveControl(Shell.java:1621)
	at org.eclipse.swt.widgets.Shell.setActiveControl(Shell.java:1584)
	at org.eclipse.swt.widgets.Control.sendFocusEvent(Control.java:3457)
	at org.eclipse.swt.widgets.Display.checkFocus(Display.java:672)
	at org.eclipse.swt.widgets.Shell.makeFirstResponder(Shell.java:1303)
	at org.eclipse.swt.widgets.Display.windowProc(Display.java:6147)
	at org.eclipse.swt.internal.cocoa.OS.objc_msgSend_bool(Native Method)
	at org.eclipse.swt.internal.cocoa.NSWindow.makeFirstResponder(NSWindow.java:198)
	at org.eclipse.swt.widgets.Control.forceFocus(Control.java:1479)
	at org.eclipse.swt.widgets.Control.forceFocus(Control.java:1459)
	at org.eclipse.swt.widgets.Control.setFocus(Control.java:3890)
	at org.eclipse.swt.widgets.Composite.setFocus(Composite.java:1089)
	at org.eclipse.ui.navigator.CommonNavigator.setFocus(CommonNavigator.java:373)
	at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.delegateSetFocus(CompatibilityPart.java:216)
	at sun.reflect.GeneratedMethodAccessor51.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:55)
	at org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:317)
	at org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:323)
	at org.eclipse.e4.core.internal.di.InjectorImpl.invoke(InjectorImpl.java:245)
	at org.eclipse.e4.core.contexts.ContextInjectionFactory.invoke(ContextInjectionFactory.java:136)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.focusGui(PartRenderingEngine.java:789)
	at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.activate(PartServiceImpl.java:750)
	at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.activate(PartServiceImpl.java:681)
	at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.activate(PartServiceImpl.java:676)
	at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.hidePart(PartServiceImpl.java:1354)
	at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.hidePart(PartServiceImpl.java:1289)
	at org.eclipse.e4.ui.workbench.renderers.swt.StackRenderer.closePart(StackRenderer.java:1249)
	at org.eclipse.e4.ui.workbench.renderers.swt.StackRenderer.access$0(StackRenderer.java:1235)
	at org.eclipse.e4.ui.workbench.renderers.swt.StackRenderer$3.close(StackRenderer.java:1109)
	at org.eclipse.swt.custom.CTabFolder.onMouse(CTabFolder.java:1958)
	at org.eclipse.swt.custom.CTabFolder.lambda$0(CTabFolder.java:333)
	at org.eclipse.swt.custom.CTabFolder$$Lambda$133/886790453.handleEvent(Unknown Source)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:86)
	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4275)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1509)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1532)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1517)
	at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1321)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4099)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3716)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1150)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1039)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153)
	at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:681)
	at org.eclipse.ui.internal.Workbench$$Lambda$24/2021466012.run(Unknown Source)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:595)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:152)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:388)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:243)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:656)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:592)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1498)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1471)

java.lang.Error
	at org.eclipse.swt.graphics.Device.new_Object(Device.java:651)
	at org.eclipse.swt.graphics.Resource.init(Resource.java:86)
	at org.eclipse.swt.graphics.Image.<init>(Image.java:520)
	at org.eclipse.swt.custom.CTabFolder.updateBkImages(CTabFolder.java:3882)
	at org.eclipse.swt.custom.CTabFolder.setButtonBounds(CTabFolder.java:2619)
	at org.eclipse.swt.custom.CTabFolder.updateItems(CTabFolder.java:3794)
	at org.eclipse.swt.custom.CTabFolder.updateItems(CTabFolder.java:3725)
	at org.eclipse.swt.custom.CTabFolder.onResize(CTabFolder.java:2118)
	at org.eclipse.swt.custom.CTabFolder.lambda$0(CTabFolder.java:335)
	at org.eclipse.swt.custom.CTabFolder$$Lambda$133/886790453.handleEvent(Unknown Source)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:86)
	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4275)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1509)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1532)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1513)
	at org.eclipse.swt.widgets.Control.resized(Control.java:3418)
	at org.eclipse.swt.widgets.Composite.resized(Composite.java:985)
	at org.eclipse.swt.widgets.Control.setFrameSize(Control.java:3983)
	at org.eclipse.swt.widgets.Display.windowProc(Display.java:5933)
	at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method)
	at org.eclipse.swt.internal.cocoa.NSView.setFrameSize(NSView.java:296)
	at org.eclipse.swt.widgets.Control.setBounds(Control.java:3715)
	at org.eclipse.swt.widgets.Control.setSize(Control.java:4291)
	at org.eclipse.swt.widgets.Control.pack(Control.java:2797)
	at org.eclipse.swt.widgets.Control.pack(Control.java:2771)
	at org.eclipse.ui.internal.e4.compatibility.ActionBars.updateActionBars(ActionBars.java:81)
	at org.eclipse.ui.part.PageBookView.showPageRec(PageBookView.java:958)
	at org.eclipse.ui.views.contentoutline.ContentOutline.showPageRec(ContentOutline.java:238)
	at org.eclipse.ui.part.PageBookView.partHidden(PageBookView.java:1090)
	at org.eclipse.ui.part.PageBookView$1.partHidden(PageBookView.java:1048)
	at org.eclipse.ui.internal.WorkbenchPage$29.run(WorkbenchPage.java:5409)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.ui.internal.WorkbenchPage.firePartHidden(WorkbenchPage.java:5406)
	at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.lambda$0(CompatibilityPart.java:103)
	at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart$$Lambda$214/1172928867.handleEvent(Unknown Source)
	at org.eclipse.e4.ui.services.internal.events.UIEventHandler$1.run(UIEventHandler.java:40)
	at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:233)
	at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:144)
	at org.eclipse.swt.widgets.Display.syncExec(Display.java:4888)
	at org.eclipse.e4.ui.internal.workbench.swt.E4Application$1.syncExec(E4Application.java:212)
	at org.eclipse.e4.ui.services.internal.events.UIEventHandler.handleEvent(UIEventHandler.java:36)
	at org.eclipse.equinox.internal.event.EventHandlerWrapper.handleEvent(EventHandlerWrapper.java:201)
	at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:196)
	at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:1)
	at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
	at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148)
	at org.eclipse.equinox.internal.event.EventAdminImpl.dispatchEvent(EventAdminImpl.java:135)
	at org.eclipse.equinox.internal.event.EventAdminImpl.sendEvent(EventAdminImpl.java:78)
	at org.eclipse.equinox.internal.event.EventComponent.sendEvent(EventComponent.java:39)
	at org.eclipse.e4.ui.services.internal.events.EventBroker.send(EventBroker.java:52)
	at org.eclipse.e4.ui.internal.workbench.UIEventPublisher.notifyChanged(UIEventPublisher.java:60)
	at org.eclipse.emf.common.notify.impl.BasicNotifierImpl.eNotify(BasicNotifierImpl.java:374)
	at org.eclipse.e4.ui.model.application.ui.impl.UIElementImpl.setWidget(UIElementImpl.java:262)
	at org.eclipse.e4.ui.workbench.renderers.swt.SWTPartRenderer.unbindWidget(SWTPartRenderer.java:146)
	at org.eclipse.e4.ui.workbench.renderers.swt.SWTPartRenderer.disposeWidget(SWTPartRenderer.java:169)
	at org.eclipse.e4.ui.workbench.renderers.swt.ContributedPartRenderer.disposeWidget(ContributedPartRenderer.java:270)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeRemoveGui(PartRenderingEngine.java:935)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$1(PartRenderingEngine.java:863)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:858)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.removeGui(PartRenderingEngine.java:842)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.subscribeTopicToBeRendered(PartRenderingEngine.java:180)
	at sun.reflect.GeneratedMethodAccessor59.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:55)
	at org.eclipse.e4.core.di.internal.extensions.EventObjectSupplier$DIEventHandler.handleEvent(EventObjectSupplier.java:88)
	at org.eclipse.equinox.internal.event.EventHandlerWrapper.handleEvent(EventHandlerWrapper.java:201)
	at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:196)
	at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:1)
	at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
	at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148)
	at org.eclipse.equinox.internal.event.EventAdminImpl.dispatchEvent(EventAdminImpl.java:135)
	at org.eclipse.equinox.internal.event.EventAdminImpl.sendEvent(EventAdminImpl.java:78)
	at org.eclipse.equinox.internal.event.EventComponent.sendEvent(EventComponent.java:39)
	at org.eclipse.e4.ui.services.internal.events.EventBroker.send(EventBroker.java:52)
	at org.eclipse.e4.ui.internal.workbench.UIEventPublisher.notifyChanged(UIEventPublisher.java:60)
	at org.eclipse.emf.common.notify.impl.BasicNotifierImpl.eNotify(BasicNotifierImpl.java:374)
	at org.eclipse.e4.ui.model.application.ui.impl.UIElementImpl.setToBeRendered(UIElementImpl.java:304)
	at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.hidePart(PartServiceImpl.java:1359)
	at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.hidePart(PartServiceImpl.java:1289)
	at org.eclipse.e4.ui.workbench.renderers.swt.StackRenderer.closePart(StackRenderer.java:1249)
	at org.eclipse.e4.ui.workbench.renderers.swt.StackRenderer.access$0(StackRenderer.java:1235)
	at org.eclipse.e4.ui.workbench.renderers.swt.StackRenderer$3.close(StackRenderer.java:1109)
	at org.eclipse.swt.custom.CTabFolder.onMouse(CTabFolder.java:1958)
	at org.eclipse.swt.custom.CTabFolder.lambda$0(CTabFolder.java:333)
	at org.eclipse.swt.custom.CTabFolder$$Lambda$133/886790453.handleEvent(Unknown Source)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:86)
	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4275)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1509)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1532)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1517)
	at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1321)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4099)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3716)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1150)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1039)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153)
	at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:681)
	at org.eclipse.ui.internal.Workbench$$Lambda$24/2021466012.run(Unknown Source)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:595)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:152)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:388)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:243)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:656)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:592)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1498)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1471)

java.lang.Error
	at org.eclipse.swt.graphics.Device.new_Object(Device.java:651)
	at org.eclipse.swt.graphics.Resource.init(Resource.java:86)
	at org.eclipse.swt.graphics.Image.<init>(Image.java:520)
	at org.eclipse.swt.custom.CTabFolder.updateBkImages(CTabFolder.java:3882)
	at org.eclipse.swt.custom.CTabFolder.setButtonBounds(CTabFolder.java:2619)
	at org.eclipse.swt.custom.CTabFolder.updateItems(CTabFolder.java:3794)
	at org.eclipse.swt.custom.CTabFolder.updateItems(CTabFolder.java:3725)
	at org.eclipse.swt.custom.CTabFolder.onResize(CTabFolder.java:2118)
	at org.eclipse.swt.custom.CTabFolder.lambda$0(CTabFolder.java:335)
	at org.eclipse.swt.custom.CTabFolder$$Lambda$133/886790453.handleEvent(Unknown Source)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:86)
	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4275)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1509)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1532)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1513)
	at org.eclipse.swt.widgets.Control.resized(Control.java:3418)
	at org.eclipse.swt.widgets.Composite.resized(Composite.java:985)
	at org.eclipse.swt.widgets.Control.setFrameSize(Control.java:3983)
	at org.eclipse.swt.widgets.Display.windowProc(Display.java:5933)
	at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method)
	at org.eclipse.swt.internal.cocoa.NSView.setFrameSize(NSView.java:296)
	at org.eclipse.swt.widgets.Control.setBounds(Control.java:3715)
	at org.eclipse.swt.widgets.Control.setSize(Control.java:4291)
	at org.eclipse.swt.widgets.Control.pack(Control.java:2797)
	at org.eclipse.swt.widgets.Control.pack(Control.java:2771)
	at org.eclipse.ui.internal.e4.compatibility.ActionBars.updateActionBars(ActionBars.java:81)
	at org.eclipse.ui.part.PageBookView.showPageRec(PageBookView.java:958)
	at org.eclipse.ui.views.contentoutline.ContentOutline.showPageRec(ContentOutline.java:238)
	at org.eclipse.ui.part.PageBookView.partHidden(PageBookView.java:1090)
	at org.eclipse.ui.part.PageBookView$1.partHidden(PageBookView.java:1048)
	at org.eclipse.ui.internal.WorkbenchPage$29.run(WorkbenchPage.java:5409)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.ui.internal.WorkbenchPage.firePartHidden(WorkbenchPage.java:5406)
	at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.lambda$0(CompatibilityPart.java:103)
	at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart$$Lambda$214/1172928867.handleEvent(Unknown Source)
	at org.eclipse.e4.ui.services.internal.events.UIEventHandler$1.run(UIEventHandler.java:40)
	at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:233)
	at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:144)
	at org.eclipse.swt.widgets.Display.syncExec(Display.java:4888)
	at org.eclipse.e4.ui.internal.workbench.swt.E4Application$1.syncExec(E4Application.java:212)
	at org.eclipse.e4.ui.services.internal.events.UIEventHandler.handleEvent(UIEventHandler.java:36)
	at org.eclipse.equinox.internal.event.EventHandlerWrapper.handleEvent(EventHandlerWrapper.java:201)
	at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:196)
	at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:1)
	at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
	at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148)
	at org.eclipse.equinox.internal.event.EventAdminImpl.dispatchEvent(EventAdminImpl.java:135)
	at org.eclipse.equinox.internal.event.EventAdminImpl.sendEvent(EventAdminImpl.java:78)
	at org.eclipse.equinox.internal.event.EventComponent.sendEvent(EventComponent.java:39)
	at org.eclipse.e4.ui.services.internal.events.EventBroker.send(EventBroker.java:52)
	at org.eclipse.e4.ui.internal.workbench.UIEventPublisher.notifyChanged(UIEventPublisher.java:60)
	at org.eclipse.emf.common.notify.impl.BasicNotifierImpl.eNotify(BasicNotifierImpl.java:374)
	at org.eclipse.e4.ui.model.application.ui.impl.UIElementImpl.setWidget(UIElementImpl.java:262)
	at org.eclipse.e4.ui.workbench.renderers.swt.SWTPartRenderer.unbindWidget(SWTPartRenderer.java:146)
	at org.eclipse.e4.ui.workbench.renderers.swt.SWTPartRenderer.disposeWidget(SWTPartRenderer.java:169)
	at org.eclipse.e4.ui.workbench.renderers.swt.ContributedPartRenderer.disposeWidget(ContributedPartRenderer.java:270)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeRemoveGui(PartRenderingEngine.java:935)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$1(PartRenderingEngine.java:863)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:858)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.removeGui(PartRenderingEngine.java:842)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.subscribeTopicToBeRendered(PartRenderingEngine.java:180)
	at sun.reflect.GeneratedMethodAccessor59.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:55)
	at org.eclipse.e4.core.di.internal.extensions.EventObjectSupplier$DIEventHandler.handleEvent(EventObjectSupplier.java:88)
	at org.eclipse.equinox.internal.event.EventHandlerWrapper.handleEvent(EventHandlerWrapper.java:201)
	at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:196)
	at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:1)
	at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
	at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148)
	at org.eclipse.equinox.internal.event.EventAdminImpl.dispatchEvent(EventAdminImpl.java:135)
	at org.eclipse.equinox.internal.event.EventAdminImpl.sendEvent(EventAdminImpl.java:78)
	at org.eclipse.equinox.internal.event.EventComponent.sendEvent(EventComponent.java:39)
	at org.eclipse.e4.ui.services.internal.events.EventBroker.send(EventBroker.java:52)
	at org.eclipse.e4.ui.internal.workbench.UIEventPublisher.notifyChanged(UIEventPublisher.java:60)
	at org.eclipse.emf.common.notify.impl.BasicNotifierImpl.eNotify(BasicNotifierImpl.java:374)
	at org.eclipse.e4.ui.model.application.ui.impl.UIElementImpl.setToBeRendered(UIElementImpl.java:304)
	at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.hidePart(PartServiceImpl.java:1359)
	at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.hidePart(PartServiceImpl.java:1289)
	at org.eclipse.e4.ui.workbench.renderers.swt.StackRenderer.closePart(StackRenderer.java:1249)
	at org.eclipse.e4.ui.workbench.renderers.swt.StackRenderer.access$0(StackRenderer.java:1235)
	at org.eclipse.e4.ui.workbench.renderers.swt.StackRenderer$3.close(StackRenderer.java:1109)
	at org.eclipse.swt.custom.CTabFolder.onMouse(CTabFolder.java:1958)
	at org.eclipse.swt.custom.CTabFolder.lambda$0(CTabFolder.java:333)
	at org.eclipse.swt.custom.CTabFolder$$Lambda$133/886790453.handleEvent(Unknown Source)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:86)
	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4275)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1509)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1532)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1517)
	at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1321)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4099)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3716)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1150)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1039)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153)
	at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:681)
	at org.eclipse.ui.internal.Workbench$$Lambda$24/2021466012.run(Unknown Source)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:595)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:152)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:388)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:243)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:656)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:592)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1498)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1471)
Comment 6 Dawid Pakula CLA 2018-05-10 18:21:21 EDT 
Traces with CSS CTAB and WorkingSet can be ignored. Eclipse create/replace this on every tab focus.

Problem was introduced in bug 516293 (first trace with LineNumberRuler), this canvas sometimes isn't disposed. Just do some fast scrolls or navigation and close editor.

So looks like bug should be moved to text component ;)
Comment 7 Eclipse Genie CLA 2018-05-13 12:05:29 EDT 
New Gerrit change created: https://git.eclipse.org/r/122532
Comment 9 Lars Vogel CLA 2018-05-14 15:45:39 EDT 
Thanks David, for the contribution.
Comment 10 Kalyan Prasad Tatavarthi CLA 2018-05-24 15:22:18 EDT 
@Dawid: Please verify that this bug is fixed in the latest Eclipse I-Build.(http://download.eclipse.org/eclipse/downloads/index.html)
Comment 11 Dawid Pakula CLA 2018-05-25 10:24:49 EDT 
Looks good now.