I'm getting the following error report in oxygen which didn't seem to have an obvious negative effect, but should be solved I think:
REPORT
name
email
comment
eclipseBuildId 4.7.0.I20170612-0950
eclipseProduct org.eclipse.epp.package.javascript.product
javaRuntimeVersion 1.8.0_131-1-redhat-b11
osgiWs win32
osgiOs Windows7
osgiOsVersion 6.1.0
osgiArch x86_64
severity UNKNOWN
STATUS
pluginId org.eclipse.jface
pluginVersion 3.13.0.v20170503-1507
code 0
severity 4
message The command ("org.epic.perleditor.commands.clearMarkers") is undefined
fingerprint 964bdc9441d57c768b5fb671a1257c25
Exception:java.lang.Exception: null
at org.eclipse.jface.action.ExternalActionManager$CommandCallback.isActive(ExternalActionManager.java:364)
at org.eclipse.jface.action.ActionContributionItem.isCommandActive(ActionContributionItem.java:626)
at org.eclipse.jface.action.ActionContributionItem.isVisible(ActionContributionItem.java:682)
at org.eclipse.ui.internal.PluginActionContributionItem.isVisible(PluginActionContributionItem.java:142)
at org.eclipse.jface.action.MenuManager.isChildVisible(MenuManager.java:982)
at org.eclipse.jface.action.MenuManager.update(MenuManager.java:752)
at org.eclipse.jface.action.MenuManager.handleAboutToShow(MenuManager.java:472)
at org.eclipse.jface.action.MenuManager.access$1(MenuManager.java:465)
at org.eclipse.jface.action.MenuManager$2.menuShown(MenuManager.java:497)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:256)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:86)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4428)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1079)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1103)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1084)
at org.eclipse.swt.widgets.Control.WM_INITMENUPOPUP(Control.java:5204)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:4872)
at org.eclipse.swt.widgets.Canvas.windowProc(Canvas.java:359)
at org.eclipse.swt.widgets.Decorations.windowProc(Decorations.java:1657)
at org.eclipse.swt.widgets.Shell.windowProc(Shell.java:2199)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:5178)
at org.eclipse.swt.internal.win32.OS.TrackPopupMenu(OS.java:-2)
at org.eclipse.swt.widgets.Menu._setVisible(Menu.java:262)
at org.eclipse.swt.widgets.Display.runPopups(Display.java:4279)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3811)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1155)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1044)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153)
at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:680)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:594)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:151)
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(NativeMethodAccessorImpl.java:-2)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:653)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:590)
at org.eclipse.equinox.launcher.Main.run(Main.java:1499)
BUNDLES
name org.eclipse.core.databinding.observable
version 1.6.100.v20170515-1119
name org.eclipse.core.databinding
version 1.6.100.v20170515-1119
name org.eclipse.core.runtime
version 3.13.0.v20170207-1030
name org.eclipse.e4.ui.workbench
version 1.5.0.v20170412-0908
name org.eclipse.e4.ui.workbench.swt
version 0.14.100.v20170519-1601
name org.eclipse.equinox.app
version 1.3.400.v20150715-1528
name org.eclipse.equinox.launcher
version 1.4.0.v20161219-1356
name org.eclipse.jface
version 3.13.0.v20170503-1507
name org.eclipse.swt
version 3.106.0.v20170608-0516
name org.eclipse.ui
version 3.109.0.v20170411-1742
name org.eclipse.ui.ide.application
version 1.2.0.v20170512-1452
name org.eclipse.ui.ide
version 3.13.0.v20170516-1223