java.lang.ClassNotFoundException: org.eclipse.core.internal.runtime.PlatformLogWriter
   at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:501)
   at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:421)
   at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:412)
   at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107)
   at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
Caused: java.lang.NoClassDefFoundError: org/eclipse/core/internal/runtime/PlatformLogWriter
   at org.eclipse.core.internal.runtime.Log.log(Log.java:60)
   at org.eclipse.mylyn.commons.core.StatusHandler.log(StatusHandler.java:47)
   at com.atlassian.connector.eclipse.internal.jira.core.JiraClientManager.start(JiraClientManager.java:92)
   at com.atlassian.connector.eclipse.internal.jira.core.JiraCorePlugin.initialize(JiraCorePlugin.java:88)
   at com.atlassian.connector.eclipse.internal.jira.core.JiraCorePlugin.start(JiraCorePlugin.java:73)
   at org.eclipse.osgi.framework.internal.core.BundleContextImpl$1.run(BundleContextImpl.java:711)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
Caused: org.osgi.framework.BundleException: Exception in com.atlassian.connector.eclipse.internal.jira.core.JiraCorePlugin.start() of bundle com.atlassian.connector.eclipse.jira.core.
   at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:734)
   at org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:683)
   at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:381)
   at org.eclipse.osgi.framework.internal.core.AbstractBundle.resume(AbstractBundle.java:390)
   at org.eclipse.osgi.framework.internal.core.Framework.resumeBundle(Framework.java:1177)
   at org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:559)
   at org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:544)
   at org.eclipse.osgi.framework.internal.core.StartLevelManager.incFWSL(StartLevelManager.java:457)
   at org.eclipse.osgi.framework.internal.core.StartLevelManager.doSetStartLevel(StartLevelManager.java:243)
   at org.eclipse.osgi.framework.internal.core.EquinoxLauncher.internalStart(EquinoxLauncher.java:271)
   at org.eclipse.osgi.framework.internal.core.EquinoxLauncher.start(EquinoxLauncher.java:241)
   at org.eclipse.osgi.launch.Equinox.start(Equinox.java:258)
   at org.netbeans.core.netigso.Netigso.start(Netigso.java:190)
   at org.netbeans.NetigsoHandle.startFramework(NetigsoHandle.java:196)
   at org.netbeans.ModuleManager.enable(ModuleManager.java:1180)
   at org.netbeans.ModuleManager.enable(ModuleManager.java:1002)
   at org.netbeans.core.startup.ModuleList.installNew(ModuleList.java:340)
   at org.netbeans.core.startup.ModuleList.trigger(ModuleList.java:276)
   at org.netbeans.core.startup.ModuleSystem.restore(ModuleSystem.java:296)
   at org.netbeans.core.startup.Main.getModuleSystem(Main.java:169)
   at org.netbeans.core.startup.Main.start(Main.java:305)
   at org.netbeans.core.startup.TopThreadGroup.run(TopThreadGroup.java:123)
   at java.lang.Thread.run(Thread.java:722)