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我試圖運行使用Equinox in Neon的Eclipse 3.x應用程序，如在this question中啓動的那樣。ExtendedLogService似乎並未啓動
看來，我剩下的問題是，LogReaderService似乎不可用，如org.eclipse.core.internal.runtime.InternalPlatform.getLog（下面第二行）似乎拋出NullPointerException異常：
ExtendedLogReaderService logReader = logReaderTracker.getService();
logReader.addLogListener(result, result);
此類的實現可以在org.eclipse.osgi，這我啓動與應用程序被發現。但是，無論出於何種原因，該服務都是空的，這會導致大量插件在記錄時引發異常，因爲許多插件依賴於從Activator獲取記錄服務。
由於org.eclipse.osgi包含在其內部的實現，我假定它也會註冊該服務。這似乎並非如此。我也嘗試過，包括log4j和org.apache.felix.log並且都不會解決此問題。
必須有一些簡單的東西，在這裏失蹤讓LogService開始？這裏的堆棧跟蹤：
Caused by: java.lang.ClassNotFoundException: An error occurred while automatically activating bundle org.eclipse.core.resources (44).
at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:116)
at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClass(ClasspathManager.java:529)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.findLocalClass(ModuleClassLoader.java:325)
at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:345)
at org.eclipse.osgi.internal.loader.sources.SingleSourcePackage.loadClass(SingleSourcePackage.java:36)
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:419)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:372)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:364)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:161)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 20 more
Caused by: org.osgi.framework.BundleException: Exception in org.eclipse.core.resources.ResourcesPlugin.start() of bundle org.eclipse.core.resources.
at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:795)
at org.eclipse.osgi.internal.framework.BundleContextImpl.start(BundleContextImpl.java:724)
at org.eclipse.osgi.internal.framework.EquinoxBundle.startWorker0(EquinoxBundle.java:932)
at org.eclipse.osgi.internal.framework.EquinoxBundle$EquinoxModule.startWorker(EquinoxBundle.java:309)
at org.eclipse.osgi.container.Module.doStart(Module.java:581)
at org.eclipse.osgi.container.Module.start(Module.java:449)
at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:470)
at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:107)
... 29 more
Caused by: java.lang.NullPointerException
at org.eclipse.core.internal.runtime.InternalPlatform.getLog(InternalPlatform.java:353)
at org.eclipse.core.runtime.Platform.getLog(Platform.java:976)
at org.eclipse.core.internal.utils.Policy.log(Policy.java:159)
at org.eclipse.core.internal.resources.Workspace.setCrashed(Workspace.java:2302)
at org.eclipse.core.internal.resources.SaveManager.restoreSnapshots(SaveManager.java:963)
at org.eclipse.core.internal.resources.SaveManager.restore(SaveManager.java:720)
at org.eclipse.core.internal.resources.SaveManager.startup(SaveManager.java:1587)
at org.eclipse.core.internal.resources.Workspace.startup(Workspace.java:2399)
at org.eclipse.core.internal.resources.Workspace.open(Workspace.java:2156)
at org.eclipse.core.resources.ResourcesPlugin.start(ResourcesPlugin.java:464)
at org.eclipse.osgi.internal.framework.BundleContextImpl$3.run(BundleContextImpl.java:774)
at org.eclipse.osgi.internal.framework.BundleContextImpl$3.run(BundleContextImpl.java:1)
at java.security.AccessController.doPrivileged(Native Method)
at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:767)
... 36 more
我還添加了
Require-Capability: osgi.service;filter:="(objectClass=org.osgi.service.log.LogService)";effective:=active
要依賴BND文件之一。這似乎沒有解決問題。
編輯：因爲OSGi框架在 bndrun文件設置爲 org.eclipse.osgi，是防止日誌得到初始化？我也嘗試加入 org.apache.commons.logging以及 osgi.enroute.equinox.log.adapter當我有任何嘗試登錄時，我仍然會收到NPE。在RCP插件被激活時， org.eclipse.osgi包已經被認爲運行了......但是沒有 ExtendedLogReaderService。我是否需要找到一種安裝Felix作爲Core Runtime的方法，以使 org.eclipse.osgi能夠由框架啓動，以使 ExtendedLogReaderServiceImpl得到註冊？
我發現了很多關於如何監聽LogService的例子......我看不到如何啓動ExtendedLogService。
編輯2：我可以通過註冊虛擬
ExtendedLogService實現來抑制
LogService空值問題。