El espacio de trabajo de Eclipse se bloquea en el inicio

Estoy usando la versión 3.0.0 de Spring Tool Suite (STS) (eclipse.buildId = 3.0.0.201208091018-RELEASE-e42). Funcionó bien durante un par de meses, pero últimamente mi área de trabajo principal se bloquea en la pantalla de bienvenida con un error, como se muestra en la última parte de esta publicación.

He intentado 'STS.exe -clean' y revertir la instalación (a través de una nueva mesa de trabajo) a una configuración anterior ... pero nada parece funcionar.

Lo manejaba como una herramienta única (es decir, casi todas las tareas relacionadas con el desarrollo, incluso como la conexión al servidor, la base de datos), por lo que es muy frustrante :-(.

Cualquier ayuda sería muy apreciada.

            !ENTRY org.eclipse.ui.workbench 4 2 2012-11-28 08:56:53.195
            !MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.ui.workbench".
            !STACK 1
            org.eclipse.core.runtime.CoreException: Plug-in "org.eclipse.equinox.p2.ui.sdk.scheduler" was unable to instantiate class "org.eclipse.equinox.internal.p2.ui.sdk.scheduler.AutomaticUpdateScheduler".
                at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.throwException(RegistryStrategyOSGI.java:194)
                at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:186)
                at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:905)
                at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)
                at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:55)
                at org.eclipse.ui.internal.WorkbenchPlugin$1.run(WorkbenchPlugin.java:273)
                at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
                at org.eclipse.ui.internal.WorkbenchPlugin.createExtension(WorkbenchPlugin.java:269)
                at org.eclipse.ui.internal.EarlyStartupRunnable.getExecutableExtension(EarlyStartupRunnable.java:117)
                at org.eclipse.ui.internal.EarlyStartupRunnable.run(EarlyStartupRunnable.java:66)
                at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
                at org.eclipse.ui.internal.Workbench$52.run(Workbench.java:2357)
                at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
            Caused by: java.lang.NullPointerException
                at org.eclipse.equinox.internal.p2.ui.sdk.scheduler.AutomaticUpdateScheduler.<init>(AutomaticUpdateScheduler.java:68)
                at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
                at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
                at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
                at java.lang.reflect.Constructor.newInstance(Constructor.java:525)
                at java.lang.Class.newInstance0(Class.java:372)
                at java.lang.Class.newInstance(Class.java:325)
                at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:184)
                ... 11 more
            !SUBENTRY 1 org.eclipse.equinox.registry 4 1 2012-11-28 08:56:53.195
            !MESSAGE Plug-in "org.eclipse.equinox.p2.ui.sdk.scheduler" was unable to instantiate class "org.eclipse.equinox.internal.p2.ui.sdk.scheduler.AutomaticUpdateScheduler".
            !STACK 0
            java.lang.NullPointerException
                at org.eclipse.equinox.internal.p2.ui.sdk.scheduler.AutomaticUpdateScheduler.<init>(AutomaticUpdateScheduler.java:68)
                at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
                at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
                at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
                at java.lang.reflect.Constructor.newInstance(Constructor.java:525)
                at java.lang.Class.newInstance0(Class.java:372)
                at java.lang.Class.newInstance(Class.java:325)
                at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:184)
                at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:905)
                at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)
                at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:55)
                at org.eclipse.ui.internal.WorkbenchPlugin$1.run(WorkbenchPlugin.java:273)
                at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
                at org.eclipse.ui.internal.WorkbenchPlugin.createExtension(WorkbenchPlugin.java:269)
                at org.eclipse.ui.internal.EarlyStartupRunnable.getExecutableExtension(EarlyStartupRunnable.java:117)
                at org.eclipse.ui.internal.EarlyStartupRunnable.run(EarlyStartupRunnable.java:66)
                at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
                at org.eclipse.ui.internal.Workbench$52.run(Workbench.java:2357)
                at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
            !SUBENTRY 1 org.eclipse.equinox.registry 4 1 2012-11-28 08:56:53.196
            !MESSAGE Plug-in "org.eclipse.equinox.p2.ui.sdk.scheduler" was unable to instantiate class "org.eclipse.equinox.internal.p2.ui.sdk.scheduler.AutomaticUpdateScheduler".
            !STACK 0
            java.lang.NullPointerException
                at org.eclipse.equinox.internal.p2.ui.sdk.scheduler.AutomaticUpdateScheduler.<init>(AutomaticUpdateScheduler.java:68)
                at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
                at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
                at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
                at java.lang.reflect.Constructor.newInstance(Constructor.java:525)
                at java.lang.Class.newInstance0(Class.java:372)
                at java.lang.Class.newInstance(Class.java:325)
                at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:184)
                at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:905)
                at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)
                at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:55)
                at org.eclipse.ui.internal.WorkbenchPlugin$1.run(WorkbenchPlugin.java:273)
                at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
                at org.eclipse.ui.internal.WorkbenchPlugin.createExtension(WorkbenchPlugin.java:269)
                at org.eclipse.ui.internal.EarlyStartupRunnable.getExecutableExtension(EarlyStartupRunnable.java:117)
                at org.eclipse.ui.internal.EarlyStartupRunnable.run(EarlyStartupRunnable.java:66)
                at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
                at org.eclipse.ui.internal.Workbench$52.run(Workbench.java:2357)
                at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

            !ENTRY org.eclipse.ui 4 4 2012-11-28 08:56:53.210
            !MESSAGE Unhandled Exception

            !ENTRY org.eclipse.equinox.p2.ui.sdk.scheduler 4 0 2012-11-28 08:56:53.213
            !MESSAGE Unable to execute early startup code for an extension
            !STACK 1
            org.eclipse.core.runtime.CoreException: Plug-in "org.eclipse.equinox.p2.ui.sdk.scheduler" was unable to instantiate class "org.eclipse.equinox.internal.p2.ui.sdk.scheduler.AutomaticUpdateScheduler".
                at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.throwException(RegistryStrategyOSGI.java:194)
                at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:186)
                at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:905)
                at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)
                at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:55)
                at org.eclipse.ui.internal.WorkbenchPlugin$1.run(WorkbenchPlugin.java:273)
                at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
                at org.eclipse.ui.internal.WorkbenchPlugin.createExtension(WorkbenchPlugin.java:269)
                at org.eclipse.ui.internal.EarlyStartupRunnable.getExecutableExtension(EarlyStartupRunnable.java:117)
                at org.eclipse.ui.internal.EarlyStartupRunnable.run(EarlyStartupRunnable.java:66)
                at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
                at org.eclipse.ui.internal.Workbench$52.run(Workbench.java:2357)
                at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
            Caused by: java.lang.NullPointerException
                at org.eclipse.equinox.internal.p2.ui.sdk.scheduler.AutomaticUpdateScheduler.<init>(AutomaticUpdateScheduler.java:68)
                at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
                at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
                at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
                at java.lang.reflect.Constructor.newInstance(Constructor.java:525)
                at java.lang.Class.newInstance0(Class.java:372)
                at java.lang.Class.newInstance(Class.java:325)
                at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:184)
                ... 11 more
            !SUBENTRY 1 org.eclipse.equinox.registry 4 1 2012-11-28 08:56:53.213
            !MESSAGE Plug-in "org.eclipse.equinox.p2.ui.sdk.scheduler" was unable to instantiate class "org.eclipse.equinox.internal.p2.ui.sdk.scheduler.AutomaticUpdateScheduler".
            !STACK 0
            java.lang.NullPointerException
                at org.eclipse.equinox.internal.p2.ui.sdk.scheduler.AutomaticUpdateScheduler.<init>(AutomaticUpdateScheduler.java:68)
                at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
                at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
                at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
                at java.lang.reflect.Constructor.newInstance(Constructor.java:525)
                at java.lang.Class.newInstance0(Class.java:372)
                at java.lang.Class.newInstance(Class.java:325)
                at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:184)
                at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:905)
                at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)
                at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:55)
                at org.eclipse.ui.internal.WorkbenchPlugin$1.run(WorkbenchPlugin.java:273)
                at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
                at org.eclipse.ui.internal.WorkbenchPlugin.createExtension(WorkbenchPlugin.java:269)
                at org.eclipse.ui.internal.EarlyStartupRunnable.getExecutableExtension(EarlyStartupRunnable.java:117)
                at org.eclipse.ui.internal.EarlyStartupRunnable.run(EarlyStartupRunnable.java:66)
                at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
                at org.eclipse.ui.internal.Workbench$52.run(Workbench.java:2357)
                at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

            !ENTRY org.eclipse.core.runtime 4 2 2012-11-28 08:56:53.250
            !MESSAGE Problems encountered starting up plug-in: "org.osgi.framework.BundleException: The bundle's start level is not met.  Cannot transient start the bundle: org.eclipse.wst.web_1.1.600.v201204190200 [797]".
            !STACK 0
            org.osgi.framework.BundleException: The bundle's start level is not met.  Cannot transient start the bundle: org.eclipse.wst.web_1.1.600.v201204190200 [797]
                at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:315)
                at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:300)
                at org.eclipse.core.internal.runtime.InternalPlatform.start(InternalPlatform.java:923)
                at org.eclipse.core.internal.plugins.PluginDescriptor.doPluginActivation(PluginDescriptor.java:360)
                at org.eclipse.core.internal.plugins.PluginDescriptor.getPlugin(PluginDescriptor.java:340)
                at org.eclipse.core.runtime.Platform.getPlugin(Platform.java:738)
                at org.eclipse.core.internal.preferences.legacy.InitLegacyPreferences.init(InitLegacyPreferences.java:43)
                at org.eclipse.core.internal.preferences.PreferenceServiceRegistryHelper.applyRuntimeDefaults(PreferenceServiceRegistryHelper.java:147)
                at org.eclipse.core.internal.preferences.PreferencesService.applyRuntimeDefaults(PreferencesService.java:368)
                at org.eclipse.core.internal.preferences.DefaultPreferences.applyRuntimeDefaults(DefaultPreferences.java:166)
                at org.eclipse.core.internal.preferences.DefaultPreferences.load(DefaultPreferences.java:237)
                at org.eclipse.core.internal.preferences.EclipsePreferences.create(EclipsePreferences.java:410)
                at org.eclipse.core.internal.preferences.EclipsePreferences.internalNode(EclipsePreferences.java:663)
                at org.eclipse.core.internal.preferences.EclipsePreferences.node(EclipsePreferences.java:805)
                at org.eclipse.core.internal.preferences.PreferencesService$5.run(PreferencesService.java:623)
                at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
                at org.eclipse.core.internal.preferences.PreferencesService.getNodes(PreferencesService.java:607)
                at org.eclipse.core.internal.preferences.PreferencesService.getString(PreferencesService.java:676)
                at org.eclipse.wst.project.facet.ProductManager.getProperty(ProductManager.java:67)
                at org.eclipse.wst.project.facet.ProductManager.shouldUseViewerSyncForWebservices(ProductManager.java:127)
                at org.eclipse.jst.j2ee.internal.webservice.startup.WebserviceListener.earlyStartup(WebserviceListener.java:79)
                at org.eclipse.ui.internal.EarlyStartupRunnable.runEarlyStartup(EarlyStartupRunnable.java:87)
                at org.eclipse.ui.internal.EarlyStartupRunnable.run(EarlyStartupRunnable.java:66)
                at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
                at org.eclipse.ui.internal.Workbench$52.run(Workbench.java:2357)
                at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
            Caused by: org.eclipse.osgi.framework.internal.core.AbstractBundle$BundleStatusException: The bundle's start level is not met.  Cannot transient start the bundle: org.eclipse.wst.web_1.1.600.v201204190200 [797]
                ... 26 more
            Root exception:
            org.eclipse.osgi.framework.internal.core.AbstractBundle$BundleStatusException: The bundle's start level is not met.  Cannot transient start the bundle: org.eclipse.wst.web_1.1.600.v201204190200 [797]
                at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:315)
                at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:300)
                at org.eclipse.core.internal.runtime.InternalPlatform.start(InternalPlatform.java:923)
                at org.eclipse.core.internal.plugins.PluginDescriptor.doPluginActivation(PluginDescriptor.java:360)
                at org.eclipse.core.internal.plugins.PluginDescriptor.getPlugin(PluginDescriptor.java:340)
                at org.eclipse.core.runtime.Platform.getPlugin(Platform.java:738)
                at org.eclipse.core.internal.preferences.legacy.InitLegacyPreferences.init(InitLegacyPreferences.java:43)
                at org.eclipse.core.internal.preferences.PreferenceServiceRegistryHelper.applyRuntimeDefaults(PreferenceServiceRegistryHelper.java:147)
                at org.eclipse.core.internal.preferences.PreferencesService.applyRuntimeDefaults(PreferencesService.java:368)
                at org.eclipse.core.internal.preferences.DefaultPreferences.applyRuntimeDefaults(DefaultPreferences.java:166)
                at org.eclipse.core.internal.preferences.DefaultPreferences.load(DefaultPreferences.java:237)
                at org.eclipse.core.internal.preferences.EclipsePreferences.create(EclipsePreferences.java:410)
                at org.eclipse.core.internal.preferences.EclipsePreferences.internalNode(EclipsePreferences.java:663)
                at org.eclipse.core.internal.preferences.EclipsePreferences.node(EclipsePreferences.java:805)
                at org.eclipse.core.internal.preferences.PreferencesService$5.run(PreferencesService.java:623)
                at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
                at org.eclipse.core.internal.preferences.PreferencesService.getNodes(PreferencesService.java:607)
                at org.eclipse.core.internal.preferences.PreferencesService.getString(PreferencesService.java:676)
                at org.eclipse.wst.project.facet.ProductManager.getProperty(ProductManager.java:67)
                at org.eclipse.wst.project.facet.ProductManager.shouldUseViewerSyncForWebservices(ProductManager.java:127)
                at org.eclipse.jst.j2ee.internal.webservice.startup.WebserviceListener.earlyStartup(WebserviceListener.java:79)
                at org.eclipse.ui.internal.EarlyStartupRunnable.runEarlyStartup(EarlyStartupRunnable.java:87)
                at org.eclipse.ui.internal.EarlyStartupRunnable.run(EarlyStartupRunnable.java:66)
                at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
                at org.eclipse.ui.internal.Workbench$52.run(Workbench.java:2357)
                at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

            !ENTRY org.eclipse.core.runtime 4 2 2012-11-28 08:56:53.258
            !MESSAGE Problems encountered starting up plug-in: "org.osgi.framework.BundleException: The bundle's start level is not met.  Cannot transient start the bundle: org.eclipse.jst.ws.jaxws.utils_1.0.200.v201201032002 [553]".
            !STACK 0
            org.osgi.framework.BundleException: The bundle's start level is not met.  Cannot transient start the bundle: org.eclipse.jst.ws.jaxws.utils_1.0.200.v201201032002 [553]
                at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:315)
                at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:300)
                at org.eclipse.core.internal.runtime.InternalPlatform.start(InternalPlatform.java:923)
                at org.eclipse.core.internal.plugins.PluginDescriptor.doPluginActivation(PluginDescriptor.java:360)
                at org.eclipse.core.internal.plugins.PluginDescriptor.getPlugin(PluginDescriptor.java:340)
                at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
                at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
                at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
                at java.lang.reflect.Method.invoke(Method.java:601)
                at org.eclipse.ui.internal.EarlyStartupRunnable.getPluginForCompatibility(EarlyStartupRunnable.java:149)
                at org.eclipse.ui.internal.EarlyStartupRunnable.getExecutableExtension(EarlyStartupRunnable.java:113)
                at org.eclipse.ui.internal.EarlyStartupRunnable.run(EarlyStartupRunnable.java:66)
                at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
                at org.eclipse.ui.internal.Workbench$52.run(Workbench.java:2357)
                at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
            Caused by: org.eclipse.osgi.framework.internal.core.AbstractBundle$BundleStatusException: The bundle's start level is not met.  Cannot transient start the bundle: org.eclipse.jst.ws.jaxws.utils_1.0.200.v201201032002 [553]
                ... 15 more
            Root exception:
            org.eclipse.osgi.framework.internal.core.AbstractBundle$BundleStatusException: The bundle's start level is not met.  Cannot transient start the bundle: org.eclipse.jst.ws.jaxws.utils_1.0.200.v201201032002 [553]
                at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:315)
                at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:300)
                at org.eclipse.core.internal.runtime.InternalPlatform.start(InternalPlatform.java:923)
                at org.eclipse.core.internal.plugins.PluginDescriptor.doPluginActivation(PluginDescriptor.java:360)
                at org.eclipse.core.internal.plugins.PluginDescriptor.getPlugin(PluginDescriptor.java:340)
                at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
                at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
                at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
                at java.lang.reflect.Method.invoke(Method.java:601)
                at org.eclipse.ui.internal.EarlyStartupRunnable.getPluginForCompatibility(EarlyStartupRunnable.java:149)
                at org.eclipse.ui.internal.EarlyStartupRunnable.getExecutableExtension(EarlyStartupRunnable.java:113)
                at org.eclipse.ui.internal.EarlyStartupRunnable.run(EarlyStartupRunnable.java:66)
                at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
                at org.eclipse.ui.internal.Workbench$52.run(Workbench.java:2357)
                at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

            !ENTRY org.eclipse.ui 4 4 2012-11-28 08:56:53.261
            !MESSAGE Unhandled Exception

            !ENTRY org.eclipse.jst.ws.jaxws.utils 4 0 2012-11-28 08:56:53.263
            !MESSAGE Unable to execute early startup code for an extension
            !STACK 0
            java.lang.reflect.InvocationTargetException
                at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
                at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
                at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
                at java.lang.reflect.Method.invoke(Method.java:601)
                at org.eclipse.ui.internal.EarlyStartupRunnable.getPluginForCompatibility(EarlyStartupRunnable.java:149)
                at org.eclipse.ui.internal.EarlyStartupRunnable.getExecutableExtension(EarlyStartupRunnable.java:113)
                at org.eclipse.ui.internal.EarlyStartupRunnable.run(EarlyStartupRunnable.java:66)
                at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
                at org.eclipse.ui.internal.Workbench$52.run(Workbench.java:2357)
                at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
            Caused by: org.eclipse.core.runtime.CoreException: Problems encountered starting up plug-in: "org.osgi.framework.BundleException: The bundle's start level is not met.  Cannot transient start the bundle: org.eclipse.jst.ws.jaxws.utils_1.0.200.v201201032002 [553]".
                at org.eclipse.core.internal.plugins.PluginDescriptor.throwException(PluginDescriptor.java:296)
                at org.eclipse.core.internal.plugins.PluginDescriptor.doPluginActivation(PluginDescriptor.java:362)
                at org.eclipse.core.internal.plugins.PluginDescriptor.getPlugin(PluginDescriptor.java:340)
                ... 10 more
            Caused by: org.osgi.framework.BundleException: The bundle's start level is not met.  Cannot transient start the bundle: org.eclipse.jst.ws.jaxws.utils_1.0.200.v201201032002 [553]
                at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:315)
                at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:300)
                at org.eclipse.core.internal.runtime.InternalPlatform.start(InternalPlatform.java:923)
                at org.eclipse.core.internal.plugins.PluginDescriptor.doPluginActivation(PluginDescriptor.java:360)
                ... 11 more
            Caused by: org.eclipse.osgi.framework.internal.core.AbstractBundle$BundleStatusException: The bundle's start level is not met.  Cannot transient start the bundle: org.eclipse.jst.ws.jaxws.utils_1.0.200.v201201032002 [553]
                ... 15 more
            Root exception:
            org.eclipse.core.runtime.CoreException: Problems encountered starting up plug-in: "org.osgi.framework.BundleException: The bundle's start level is not met.  Cannot transient start the bundle: org.eclipse.jst.ws.jaxws.utils_1.0.200.v201201032002 [553]".
                at org.eclipse.core.internal.plugins.PluginDescriptor.throwException(PluginDescriptor.java:296)
                at org.eclipse.core.internal.plugins.PluginDescriptor.doPluginActivation(PluginDescriptor.java:362)
                at org.eclipse.core.internal.plugins.PluginDescriptor.getPlugin(PluginDescriptor.java:340)
                at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
                at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
                at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
                at java.lang.reflect.Method.invoke(Method.java:601)
                at org.eclipse.ui.internal.EarlyStartupRunnable.getPluginForCompatibility(EarlyStartupRunnable.java:149)
                at org.eclipse.ui.internal.EarlyStartupRunnable.getExecutableExtension(EarlyStartupRunnable.java:113)
                at org.eclipse.ui.internal.EarlyStartupRunnable.run(EarlyStartupRunnable.java:66)
                at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
                at org.eclipse.ui.internal.Workbench$52.run(Workbench.java:2357)
                at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
            Caused by: org.osgi.framework.BundleException: The bundle's start level is not met.  Cannot transient start the bundle: org.eclipse.jst.ws.jaxws.utils_1.0.200.v201201032002 [553]
                at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:315)
                at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:300)
                at org.eclipse.core.internal.runtime.InternalPlatform.start(InternalPlatform.java:923)
                at org.eclipse.core.internal.plugins.PluginDescriptor.doPluginActivation(PluginDescriptor.java:360)
                ... 11 more
            Caused by: org.eclipse.osgi.framework.internal.core.AbstractBundle$BundleStatusException: The bundle's start level is not met.  Cannot transient start the bundle: org.eclipse.jst.ws.jaxws.utils_1.0.200.v201201032002 [553]
                ... 15 more

            !ENTRY org.eclipse.ui 4 4 2012-11-28 08:56:53.266
            !MESSAGE Bad extension specification

            !ENTRY org.eclipse.jst.ws.jaxws.utils 4 0 2012-11-28 08:56:53.268
            !MESSAGE startup class must implement org.eclipse.ui.IStartup

            !ENTRY org.eclipse.ui.workbench 4 2 2012-11-28 08:56:53.422
            !MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.ui.workbench".
            !STACK 0
            java.lang.NullPointerException
                at org.springframework.ide.eclipse.maven.internal.legacyconversion.LegacyProjectChecker.earlyStartup(LegacyProjectChecker.java:36)
                at org.eclipse.ui.internal.EarlyStartupRunnable.runEarlyStartup(EarlyStartupRunnable.java:87)
                at org.eclipse.ui.internal.EarlyStartupRunnable.run(EarlyStartupRunnable.java:66)
                at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
                at org.eclipse.ui.internal.Workbench$52.run(Workbench.java:2357)
                at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

            !ENTRY org.eclipse.ui 4 4 2012-11-28 08:56:53.424
            !MESSAGE Unhandled Exception

Respuestas a la pregunta(6)

Su respuesta a la pregunta