JIRA 6.3.3 using bin installer throws Failed to deep scan error message during plugin system startup

___ Starting the JIRA Plugin System _________________

2014-08-12 15:08:02,319 localhost-startStop-1 INFO      [atlassian.plugin.manager.DefaultPluginManager] Plugin system earlyStartup begun
2014-08-12 15:08:04,118 localhost-startStop-1 WARN      [osgi.container.felix.ExportsBuilder] Failed to deep scan 'file:/opt/atlassian/jira/jre/lib/ext/._sunec.jar'
java.util.zip.ZipException: error in opening zip file
	at java.util.zip.ZipFile.open(Native Method)
	at java.util.zip.ZipFile.<init>(Unknown Source)
	at java.util.zip.ZipFile.<init>(Unknown Source)
	at java.util.jar.JarFile.<init>(Unknown Source)
	at java.util.jar.JarFile.<init>(Unknown Source)
	at com.atlassian.plugin.osgi.container.felix.ExportsBuilder.getUrlClassPath(ExportsBuilder.java:356)
	at com.atlassian.plugin.osgi.container.felix.ExportsBuilder.generateExports(ExportsBuilder.java:257)
	at com.atlassian.plugin.osgi.container.felix.ExportsBuilder.determineExports(ExportsBuilder.java:175)
	at com.atlassian.plugin.osgi.container.felix.ExportsBuilder.getExports(ExportsBuilder.java:127)
	at com.atlassian.plugin.osgi.container.felix.FelixOsgiContainerManager.start(FelixOsgiContainerManager.java:249)
	at com.atlassian.jira.plugin.JiraOsgiContainerManager.start(JiraOsgiContainerManager.java:81)
	at com.atlassian.plugin.osgi.container.felix.FelixOsgiContainerManager.onStart(FelixOsgiContainerManager.java:205)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at com.atlassian.event.internal.SingleParameterMethodListenerInvoker.invoke(SingleParameterMethodListenerInvoker.java:36)
	at com.atlassian.event.internal.AsynchronousAbleEventDispatcher$1$1.run(AsynchronousAbleEventDispatcher.java:46)
	at com.google.common.util.concurrent.MoreExecutors$SameThreadExecutorService.execute(MoreExecutors.java:253)
	at com.atlassian.event.internal.AsynchronousAbleEventDispatcher.dispatch(AsynchronousAbleEventDispatcher.java:101)
	at com.atlassian.event.internal.EventPublisherImpl.invokeListeners(EventPublisherImpl.java:160)
	at com.atlassian.event.internal.EventPublisherImpl.publish(EventPublisherImpl.java:79)
	at com.atlassian.plugin.event.impl.DefaultPluginEventManager.broadcast(DefaultPluginEventManager.java:84)
	at com.atlassian.plugin.manager.DefaultPluginManager.earlyStartup(DefaultPluginManager.java:328)
	at com.atlassian.jira.plugin.JiraPluginManager.earlyStartup(JiraPluginManager.java:97)
	at com.atlassian.jira.plugin.JiraPluginManager.start(JiraPluginManager.java:87)
	at com.atlassian.jira.ComponentManager$PluginSystem.start(ComponentManager.java:767)
	at com.atlassian.jira.ComponentManager.quickStart(ComponentManager.java:258)
	at com.atlassian.jira.ComponentManager.start(ComponentManager.java:232)
	at com.atlassian.jira.upgrade.PluginSystemLauncher.start(PluginSystemLauncher.java:29)
	at com.atlassian.jira.startup.DefaultJiraLauncher$3.run(DefaultJiraLauncher.java:131)
	at com.atlassian.jira.config.database.DatabaseConfigurationManagerImpl.doNowOrEnqueue(DatabaseConfigurationManagerImpl.java:324)
	at com.atlassian.jira.config.database.DatabaseConfigurationManagerImpl.doNowOrWhenDatabaseActivated(DatabaseConfigurationManagerImpl.java:214)
	at com.atlassian.jira.startup.DefaultJiraLauncher.postDbLaunch(DefaultJiraLauncher.java:115)
	at com.atlassian.jira.startup.DefaultJiraLauncher.access$100(DefaultJiraLauncher.java:31)
	at com.atlassian.jira.startup.DefaultJiraLauncher$1.run(DefaultJiraLauncher.java:78)
	at com.atlassian.jira.util.devspeed.JiraDevSpeedTimer.run(JiraDevSpeedTimer.java:34)
	at com.atlassian.jira.startup.DefaultJiraLauncher.start(DefaultJiraLauncher.java:73)
	at com.atlassian.jira.startup.LauncherContextListener.contextInitialized(LauncherContextListener.java:71)
	at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4939)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5434)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
	at java.util.concurrent.FutureTask.run(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)