eclipse里的Error Log中报错Unhandled event loop exception

java.lang.NullPointerException
at com.android.ddmuilib.logcat.LogCatPanel.updateUnreadCount(LogCatPanel.java:1212)
at com.android.ddmuilib.logcat.LogCatPanel.bufferChanged(LogCatPanel.java:1168)
at com.android.ddmuilib.logcat.LogCatPanel.reloadLogBuffer(LogCatPanel.java:1196)
at com.android.ddmuilib.logcat.LogCatPanel.updateAppliedFilters(LogCatPanel.java:1136)
at com.android.ddmuilib.logcat.LogCatPanel.filterSelectionChanged(LogCatPanel.java:1117)
at com.android.ddmuilib.logcat.LogCatPanel.access$1400(LogCatPanel.java:98)
at com.android.ddmuilib.logcat.LogCatPanel$6.widgetSelected(LogCatPanel.java:623)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:248)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1057)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4170)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3759)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1113)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:997)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:138)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:610)

报错信息接上
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:567)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:124)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)

程序中，有null的变量，未加判断，导致异常了