Eclipse 2019-06无法打开代码规约的所有文档

点击后没有任何反应，异常信息
ENTRY` org.eclipse.ui 4 0 2019-08-01 20:07:51.448
!MESSAGE Unhandled event loop exception
!STACK 0
java.lang.IllegalArgumentException: Argument cannot be null
at org.eclipse.swt.SWT.error(SWT.java:4680)
at org.eclipse.swt.SWT.error(SWT.java:4614)
at org.eclipse.swt.SWT.error(SWT.java:4585)
at org.eclipse.swt.widgets.Widget.error(Widget.java:451)
at org.eclipse.swt.widgets.List.add(List.java:107)
at com.alibaba.smartfox.eclipse.ui.AllRulesView.(AllRulesView.kt:39)
at com.alibaba.smartfox.eclipse.ui.RuleDetailView$initToolBar$rulesAction$1.run(RuleDetailView.kt:68)
at org.eclipse.jface.action.Action.runWithEvent(Action.java:474)
at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:580)
at org.eclipse.jface.action.ActionContributionItem.lambda$5(ActionContributionItem.java:451)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4131)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1056)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3944)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3547)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1173)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1062)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:155)
at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:635)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:559)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:155)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:137)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:107)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:400)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255)
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:498)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:660)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:597)
at org.eclipse.equinox.launcher.Main.run(Main.java:1468)

Start with com.alibaba.smartfox.eclipse.ui.AllRulesView.kt at line 39, where the SWT List.add call raises the reported null-argument exception, and trace the action from RuleDetailView.kt line 68. Reproduce the failure in Eclipse 2019-06 and inspect the data supplied to the list. Done means the code-rules documents open without the unhandled exception.

Written by the indexing model from the issue text.