3.4用のMylynで困った

Mylynは長い期間Ganymede(M*とかRC*とか)を使っていた時に3.3用のものを使っていて、正式リリースの時に3.4用のMylynに変えたら「ContextのRetrieve」ができなくなった。Contextを添付していないTaskは「Retrive」をClickすると空っぽの選択ダイアログが開くが、Contextが添付されたTaskで「Retrieve」すると選択ダイアログすら表示されない。ErrorLogには以下のExceptionが記録されていた。

java.lang.IllegalArgumentException: Argument cannot be null
at org.eclipse.swt.SWT.error(SWT.java:3761)
at org.eclipse.swt.SWT.error(SWT.java:3695)
at org.eclipse.swt.SWT.error(SWT.java:3666)
at org.eclipse.swt.widgets.Widget.error(Widget.java:681)
at org.eclipse.swt.widgets.TableItem.setText(TableItem.java:1054)
at org.eclipse.mylyn.internal.context.ui.wizards.ContextRetrieveWizardPage.createControl(ContextRetrieveWizardPage.java:146)
at org.eclipse.jface.wizard.Wizard.createPageControls(Wizard.java:170)
at org.eclipse.jface.wizard.WizardDialog.createPageControls(WizardDialog.java:669)
at org.eclipse.jface.wizard.WizardDialog.createContents(WizardDialog.java:543)
at org.eclipse.jface.window.Window.create(Window.java:431)
at org.eclipse.jface.dialogs.Dialog.create(Dialog.java:1089)
at org.eclipse.mylyn.internal.context.ui.actions.ContextRetrieveAction.run(ContextRetrieveAction.java:105)
at org.eclipse.mylyn.internal.context.ui.editors.ContextEditorFormPage$4.mouseUp(ContextEditorFormPage.java:276)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:207)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1561)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1585)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1570)
at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1360)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3474)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3064)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2382)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2346)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2198)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:493)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:288)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:488)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:193)
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:382)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
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:585)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:549)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:504)
at org.eclipse.equinox.launcher.Main.run(Main.java:1236)

誰かタスケテ＞＜
Mylynに頼り切ってたから、この機能がが無いとどのTaskでどのファイルを触っていたかがわからんよぅ。