Eclipse will not start after any changes - java

I'm using eclipse kepler to developer some java program and this morning I have a new problem: eclipse doesn't start. Until yesterday everything worked, but this morning when I try to execute it i get
The log file contains the foolowing exceptions:
!SESSION 2015-07-09 09:55:31.429 -----------------------------------------------
eclipse.buildId=4.3.2.M20140221-1700
java.version=1.7.0_60
java.vendor=Oracle Corporation
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=it_IT
Framework arguments: -product org.eclipse.epp.package.jee.product
Command-line arguments: -os win32 -ws win32 -arch x86 -product org.eclipse.epp.package.jee.product
!ENTRY org.eclipse.osgi 4 0 2015-07-09 09:55:31.757
!MESSAGE Startup error
!STACK 1
java.lang.RuntimeException: Exception in org.eclipse.osgi.framework.internal.core.SystemBundleActivator.start() of bundle org.eclipse.osgi.
at org.eclipse.osgi.framework.internal.core.InternalSystemBundle.resume(InternalSystemBundle.java:233)
at org.eclipse.osgi.framework.internal.core.Framework.launch(Framework.java:656)
at org.eclipse.core.runtime.adaptor.EclipseStarter.startup(EclipseStarter.java:275)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:177)
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 org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:636)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:591)
at org.eclipse.equinox.launcher.Main.run(Main.java:1450)
Caused by: org.osgi.framework.BundleException: Exception in org.eclipse.osgi.framework.internal.core.SystemBundleActivator.start() of bundle org.eclipse.osgi.
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.InternalSystemBundle.resume(InternalSystemBundle.java:225)
... 10 more
Caused by: java.lang.SecurityException: SHA1 digest error for org/eclipse/osgi/internal/module/ResolverImpl.class
at sun.security.util.ManifestEntryVerifier.verify(Unknown Source)
at java.util.jar.JarVerifier.processEntry(Unknown Source)
at java.util.jar.JarVerifier.update(Unknown Source)
at java.util.jar.JarVerifier$VerifierStream.read(Unknown Source)
at sun.misc.Resource.getBytes(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$100(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at org.eclipse.osgi.internal.baseadaptor.StateManager.createResolver(StateManager.java:283)
at org.eclipse.osgi.internal.baseadaptor.StateManager.initializeSystemState(StateManager.java:182)
at org.eclipse.osgi.internal.baseadaptor.StateManager.createSystemState(StateManager.java:195)
at org.eclipse.osgi.internal.baseadaptor.BaseStorage.readStateData(BaseStorage.java:843)
at org.eclipse.osgi.internal.baseadaptor.BaseStorage.getStateManager(BaseStorage.java:799)
at org.eclipse.osgi.baseadaptor.BaseAdaptor.getState(BaseAdaptor.java:387)
at org.eclipse.osgi.internal.baseadaptor.BaseStorage.frameworkStart(BaseStorage.java:923)
at org.eclipse.osgi.baseadaptor.BaseAdaptor.frameworkStart(BaseAdaptor.java:250)
at org.eclipse.osgi.framework.internal.core.SystemBundleActivator.start(SystemBundleActivator.java:60)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl$1.run(BundleContextImpl.java:711)
at java.security.AccessController.doPrivileged(Native Method)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:702)
... 12 more
I trid to follow some SO thread like
Link1
bu nothing to do, How can i solve this problem?


Something looks wrong in Eclipse own jars,
The error indicates a failure wile loading classes from one jar,
Try to get a fresh copy of the jars and replace it inside Eclipse directory.
If that didn't work, your best bet would be to install a fresh copy of eclipse (and I suggest you install Eclipse-Luna)


Try installing it by using eclipse-inst-win64.exe. That fixed the problem for me:

Related

Eclipse - an error as occurred see the log file

So I was using eclipse and all of a sudden it got stuck and when I tried reopening it this error popped up and eclipse won't open.
here the latest of the log file:
!SESSION 2016-10-18 21:53:30.325
----------------------------------------------- eclipse.buildId=4.6.0.I20160606-1100 java.version=1.8.0_101
java.vendor=Oracle Corporation BootLoader constants: OS=win32,
ARCH=x86_64, WS=win32, NL=en_US Framework arguments: -product
org.eclipse.epp.package.java.product Command-line arguments: -os
win32 -ws win32 -arch x86_64 -product
org.eclipse.epp.package.java.product
!ENTRY org.eclipse.osgi 4 0 2016-10-18 21:53:32.667 !MESSAGE An error
occurred while automatically activating bundle
org.eclipse.core.resources (85). !STACK 0
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)
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:334)
at
org.eclipse.osgi.internal.loader.sources.SingleSourcePackage.loadClass(SingleSourcePackage.java:36)
at
org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:407)
at
org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:361)
at
org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:353)
at
org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:161)
at java.lang.ClassLoader.loadClass(Unknown Source) at
org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:139)
at
org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
at
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
at
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
at
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:388)
at
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:243)
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
org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:673) at
org.eclipse.equinox.launcher.Main.basicRun(Main.java:610) at
org.eclipse.equinox.launcher.Main.run(Main.java:1519) Caused by:
org.eclipse.core.internal.resources.ResourceException: Incompatible
file format. Workspace was saved with an incompatible version: 0. at
org.eclipse.core.internal.resources.WorkspaceTreeReader.getReader(WorkspaceTreeReader.java:59)
at
org.eclipse.core.internal.resources.WorkspaceTreeReader.getReader(WorkspaceTreeReader.java:67)
at
org.eclipse.core.internal.resources.SaveManager.restoreTree(SaveManager.java:1056)
at
org.eclipse.core.internal.resources.SaveManager.restore(SaveManager.java:719)
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)
... 29 more Root exception:
org.eclipse.core.internal.resources.ResourceException: Incompatible
file format. Workspace was saved with an incompatible version: 0. at
org.eclipse.core.internal.resources.WorkspaceTreeReader.getReader(WorkspaceTreeReader.java:59)
at
org.eclipse.core.internal.resources.WorkspaceTreeReader.getReader(WorkspaceTreeReader.java:67)
at
org.eclipse.core.internal.resources.SaveManager.restoreTree(SaveManager.java:1056)
at
org.eclipse.core.internal.resources.SaveManager.restore(SaveManager.java:719)
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$3.run(BundleContextImpl.java:1)
at java.security.AccessController.doPrivileged(Native Method) at
org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:767)
at
org.eclipse.osgi.internal.framework.BundleContextImpl.start(BundleContextImpl.java:724)
at
org.eclipse.osgi.internal.framework.EquinoxBundle.startWorker0(EquinoxBundle.java:932)
at
org.eclipse.osgi.internal.framework.EquinoxBundle$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)
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:334)
at
org.eclipse.osgi.internal.loader.sources.SingleSourcePackage.loadClass(SingleSourcePackage.java:36)
at
org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:407)
at
org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:361)
at
org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:353)
at
org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:161)
at java.lang.ClassLoader.loadClass(Unknown Source) at
org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:139)
at
org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
at
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
at
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
at
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:388)
at
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:243)
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
org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:673) at
org.eclipse.equinox.launcher.Main.basicRun(Main.java:610) at
org.eclipse.equinox.launcher.Main.run(Main.java:1519)
!ENTRY org.eclipse.osgi 4 0 2016-10-18 21:53:32.682 !MESSAGE
Application error !STACK 1 java.lang.NoClassDefFoundError:
org/eclipse/core/resources/IContainer at
org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:139)
at
org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
at
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
at
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
at
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:388)
at
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:243)
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
org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:673) at
org.eclipse.equinox.launcher.Main.basicRun(Main.java:610) at
org.eclipse.equinox.launcher.Main.run(Main.java:1519) Caused by:
java.lang.ClassNotFoundException: An error occurred while
automatically activating bundle org.eclipse.core.resources (85). 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:334)
at
org.eclipse.osgi.internal.loader.sources.SingleSourcePackage.loadClass(SingleSourcePackage.java:36)
at
org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:407)
at
org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:361)
at
org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:353)
at
org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:161)
at java.lang.ClassLoader.loadClass(Unknown Source) ... 13 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)
... 22 more Caused by:
org.eclipse.core.internal.resources.ResourceException: Incompatible
file format. Workspace was saved with an incompatible version: 0. at
org.eclipse.core.internal.resources.WorkspaceTreeReader.getReader(WorkspaceTreeReader.java:59)
at
org.eclipse.core.internal.resources.WorkspaceTreeReader.getReader(WorkspaceTreeReader.java:67)
at
org.eclipse.core.internal.resources.SaveManager.restoreTree(SaveManager.java:1056)
at
org.eclipse.core.internal.resources.SaveManager.restore(SaveManager.java:719)
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)
... 29 more

Eclipse not starting up after reinstalling (log included)

I made a dumb mistake telling GWT to use my User Data Path as the place or my web archive, so GWT went ahead and cleared it. I restored most of the data and downloaded Eclipse again. Now when I try to start Eclipse, I am allowed to choose my workspace (I created a brand new one and tried to use it) but afterwards it just crashes and tells me to take a look at my error log. The log contains the following informations:
!SESSION 2015-08-13 11:58:43.076 -----------------------------------------------
eclipse.buildId=4.4.2.M20150204-1700
java.version=1.8.0_51
java.vendor=Oracle Corporation
BootLoader constants: OS=win32, ARCH=x86_64, WS=win32, NL=de_DE
Framework arguments: -product org.eclipse.epp.package.java.product
Command-line arguments: -os win32 -ws win32 -arch x86_64 -product
org.eclipse.epp.package.java.product
!ENTRY org.eclipse.osgi 4 0 2015-08-13 11:59:26.157
!MESSAGE An error occurred while automatically activating bundle org.eclipse.core.net (75).
!STACK 0
org.osgi.framework.BundleException: Exception in org.eclipse.core.internal.net.Activator.start() of bundle org.eclipse.core.net.
at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:792)
at org.eclipse.osgi.internal.framework.BundleContextImpl.start(BundleContextImpl.java:721)
at org.eclipse.osgi.internal.framework.EquinoxBundle.startWorker0(EquinoxBundle.java:936)
at org.eclipse.osgi.internal.framework.EquinoxBundle$EquinoxModule.startWorker(EquinoxBundle.java:319)
at org.eclipse.osgi.container.Module.doStart(Module.java:571)
at org.eclipse.osgi.container.Module.start(Module.java:439)
at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:454)
at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:107)
at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClass(ClasspathManager.java:531)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.findLocalClass(ModuleClassLoader.java:324)
at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:320)
at org.eclipse.osgi.internal.loader.sources.SingleSourcePackage.loadClass(SingleSourcePackage.java:36)
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:391)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:345)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:337)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:160)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at org.eclipse.ui.internal.ide.application.IDEWorkbenchAdvisor.activateProxyService(IDEWorkbenchAdvisor.java:291)
at org.eclipse.ui.internal.ide.application.IDEWorkbenchAdvisor.postStartup(IDEWorkbenchAdvisor.java:271)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2922)
at org.eclipse.ui.internal.Workbench.access$8(Workbench.java:2797)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:633)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:579)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:135)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:380)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235)
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 org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:648)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:603)
at org.eclipse.equinox.launcher.Main.run(Main.java:1465)
Caused by: java.lang.IllegalArgumentException: Node path "Êþº¾ 4 )com/camelup/client/view/signup/SignUpView java/lang/Object &com/google/gwt/user/client/ui/IsWidget getInput ()Ljava/util" is not valid.
at org.eclipse.equinox.internal.security.storage.SecurePreferences.validatePath(SecurePreferences.java:361)
at org.eclipse.equinox.internal.security.storage.SecurePreferences.node(SecurePreferences.java:95)
at org.eclipse.equinox.internal.security.storage.SecurePreferencesRoot.load(SecurePreferencesRoot.java:152)
at org.eclipse.equinox.internal.security.storage.SecurePreferencesRoot.<init>(SecurePreferencesRoot.java:84)
at org.eclipse.equinox.internal.security.storage.SecurePreferencesMapper.open(SecurePreferencesMapper.java:101)
at org.eclipse.equinox.internal.security.storage.SecurePreferencesMapper.getDefault(SecurePreferencesMapper.java:46)
at org.eclipse.equinox.security.storage.SecurePreferencesFactory.getDefault(SecurePreferencesFactory.java:49)
at org.eclipse.core.internal.net.ProxyType.getNode(ProxyType.java:523)
at org.eclipse.core.internal.net.ProxyType.loadProxyAuth(ProxyType.java:533)
at org.eclipse.core.internal.net.ProxyType.createProxyData(ProxyType.java:138)
at org.eclipse.core.internal.net.ProxyType.getProxyData(ProxyType.java:127)
at org.eclipse.core.internal.net.PreferenceManager.migrateInstanceScopePreferences(PreferenceManager.java:292)
at org.eclipse.core.internal.net.PreferenceManager.migrate(PreferenceManager.java:260)
at org.eclipse.core.internal.net.ProxyManager.checkMigrated(ProxyManager.java:404)
at org.eclipse.core.internal.net.ProxyManager.initialize(ProxyManager.java:269)
at org.eclipse.core.internal.net.Activator.start(Activator.java:181)
at org.eclipse.osgi.internal.framework.BundleContextImpl$3.run(BundleContextImpl.java:771)
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:764)
... 39 more
Root exception:
java.lang.IllegalArgumentException: Node path "Êþº¾ 4 )com/camelup/client/view/signup/SignUpView java/lang/Object &com/google/gwt/user/client/ui/IsWidget getInput ()Ljava/util" is not valid.
at org.eclipse.equinox.internal.security.storage.SecurePreferences.validatePath(SecurePreferences.java:361)
at org.eclipse.equinox.internal.security.storage.SecurePreferences.node(SecurePreferences.java:95)
at org.eclipse.equinox.internal.security.storage.SecurePreferencesRoot.load(SecurePreferencesRoot.java:152)
at org.eclipse.equinox.internal.security.storage.SecurePreferencesRoot.<init>(SecurePreferencesRoot.java:84)
at org.eclipse.equinox.internal.security.storage.SecurePreferencesMapper.open(SecurePreferencesMapper.java:101)
at org.eclipse.equinox.internal.security.storage.SecurePreferencesMapper.getDefault(SecurePreferencesMapper.java:46)
at org.eclipse.equinox.security.storage.SecurePreferencesFactory.getDefault(SecurePreferencesFactory.java:49)
at org.eclipse.core.internal.net.ProxyType.getNode(ProxyType.java:523)
at org.eclipse.core.internal.net.ProxyType.loadProxyAuth(ProxyType.java:533)
at org.eclipse.core.internal.net.ProxyType.createProxyData(ProxyType.java:138)
at org.eclipse.core.internal.net.ProxyType.getProxyData(ProxyType.java:127)
at org.eclipse.core.internal.net.PreferenceManager.migrateInstanceScopePreferences(PreferenceManager.java:292)
at org.eclipse.core.internal.net.PreferenceManager.migrate(PreferenceManager.java:260)
at org.eclipse.core.internal.net.ProxyManager.checkMigrated(ProxyManager.java:404)
at org.eclipse.core.internal.net.ProxyManager.initialize(ProxyManager.java:269)
at org.eclipse.core.internal.net.Activator.start(Activator.java:181)
at org.eclipse.osgi.internal.framework.BundleContextImpl$3.run(BundleContextImpl.java:771)
at org.eclipse.osgi.internal.framework.BundleContextImpl$3.run(BundleContextImpl.java:1)
at java.security.AccessController.doPrivileged(Native Method)
at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:764)
at org.eclipse.osgi.internal.framework.BundleContextImpl.start(BundleContextImpl.java:721)
at org.eclipse.osgi.internal.framework.EquinoxBundle.startWorker0(EquinoxBundle.java:936)
at org.eclipse.osgi.internal.framework.EquinoxBundle$EquinoxModule.startWorker(EquinoxBundle.java:319)
at org.eclipse.osgi.container.Module.doStart(Module.java:571)
at org.eclipse.osgi.container.Module.start(Module.java:439)
at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:454)
at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:107)
at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClass(ClasspathManager.java:531)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.findLocalClass(ModuleClassLoader.java:324)
at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:320)
at org.eclipse.osgi.internal.loader.sources.SingleSourcePackage.loadClass(SingleSourcePackage.java:36)
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:391)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:345)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:337)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:160)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at org.eclipse.ui.internal.ide.application.IDEWorkbenchAdvisor.activateProxyService(IDEWorkbenchAdvisor.java:291)
at org.eclipse.ui.internal.ide.application.IDEWorkbenchAdvisor.postStartup(IDEWorkbenchAdvisor.java:271)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2922)
at org.eclipse.ui.internal.Workbench.access$8(Workbench.java:2797)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:633)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:579)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:135)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:380)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235)
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 org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:648)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:603)
at org.eclipse.equinox.launcher.Main.run(Main.java:1465)
!ENTRY org.eclipse.osgi 4 0 2015-08-13 11:59:26.209
!MESSAGE Application error
!STACK 1
java.lang.NoClassDefFoundError: An error occurred while automatically activating bundle org.eclipse.core.net (75).
at org.eclipse.ui.internal.ide.application.IDEWorkbenchAdvisor.activateProxyService(IDEWorkbenchAdvisor.java:291)
at org.eclipse.ui.internal.ide.application.IDEWorkbenchAdvisor.postStartup(IDEWorkbenchAdvisor.java:271)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2922)
at org.eclipse.ui.internal.Workbench.access$8(Workbench.java:2797)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:633)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:579)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:135)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:380)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235)
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 org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:648)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:603)
at org.eclipse.equinox.launcher.Main.run(Main.java:1465)
Thank you in advance for your help.
Edit: I did not add any Files to the new Workspace so far

It seems this is compatibility issue.
Please make sure you are using same bit version 64 bit or 32 bit type of jdk and eclipse.

So heres the answer:
I deleted the file inside of C:\Users\myUserName.eclipse\org.eclipse.equinox.security which was named something like secure_storage. That did the trick and I can start Eclipse again now :)

Can't open workspace in eclipse [duplicate]

This question already has answers here:
Eclipse won't start, log error says: ObjectNotFoundException: Tree element
(14 answers)
Closed 5 years ago.
During my work in eclipse kepler it crashed.
Now I can't open eclipse on the requested workspace (on other work space it open fine).
After choosing a workspace I get a pop up message:
An error has occurred. see the log file. ...WORKSPACE/.metadata/.log
Opening the log file:
!SESSION 2015-03-19 17:10:55.171 -----------------------------------------------
eclipse.buildId=4.3.0.I20130605-2000
java.version=1.7.0_71
java.vendor=Oracle Corporation
BootLoader constants: OS=win32, ARCH=x86_64, WS=win32, NL=en_US
Framework arguments: -product org.eclipse.epp.package.jee.product
Command-line arguments: -os win32 -ws win32 -arch x86_64 -product org.eclipse.epp.package.jee.product
!ENTRY org.eclipse.core.resources 2 10035 2015-03-19 17:10:58.594
!MESSAGE The workspace exited with unsaved changes in the previous session; refreshing workspace to recover changes.
!ENTRY org.eclipse.osgi 4 0 2015-03-19 17:10:58.910
!MESSAGE An error occurred while automatically activating bundle org.eclipse.core.resources (82).
!STACK 0
org.osgi.framework.BundleException: Exception in org.eclipse.core.resources.ResourcesPlugin.start() of bundle org.eclipse.core.resources.
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.start(AbstractBundle.java:300)
at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:478)
at org.eclipse.osgi.internal.loader.BundleLoader.setLazyTrigger(BundleLoader.java:263)
at org.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:109)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass(ClasspathManager.java:469)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalClass(DefaultClassLoader.java:216)
at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:395)
at org.eclipse.osgi.internal.loader.SingleSourcePackage.loadClass(SingleSourcePackage.java:35)
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:461)
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(Unknown Source)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:125)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:354)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:181)
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 org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:636)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:591)
at org.eclipse.equinox.launcher.Main.run(Main.java:1450)
at org.eclipse.equinox.launcher.Main.main(Main.java:1426)
Caused by: org.eclipse.core.internal.dtree.ObjectNotFoundException: Tree element '/Servers/Tomcat v7.0 Server at localhost-config/web.xml' not found.
at org.eclipse.core.internal.dtree.AbstractDataTree.handleNotFound(AbstractDataTree.java:257)
at org.eclipse.core.internal.dtree.DeltaDataTree.getData(DeltaDataTree.java:585)
at org.eclipse.core.internal.dtree.DataDeltaNode.asBackwardDelta(DataDeltaNode.java:50)
at org.eclipse.core.internal.dtree.DataDeltaNode.asBackwardDelta(DataDeltaNode.java:47)
at org.eclipse.core.internal.dtree.NoDataDeltaNode.asBackwardDelta(NoDataDeltaNode.java:59)
at org.eclipse.core.internal.dtree.DataDeltaNode.asBackwardDelta(DataDeltaNode.java:47)
at org.eclipse.core.internal.dtree.DeltaDataTree.asBackwardDelta(DeltaDataTree.java:88)
at org.eclipse.core.internal.dtree.DeltaDataTree.reroot(DeltaDataTree.java:816)
at org.eclipse.core.internal.dtree.DeltaDataTree.reroot(DeltaDataTree.java:815)
at org.eclipse.core.internal.dtree.DeltaDataTree.reroot(DeltaDataTree.java:815)
.
.
.
.
.
.
at org.eclipse.core.internal.dtree.DeltaDataTree.reroot(DeltaDataTree.java:815)
at org.eclipse.core.internal.dtree.DeltaDataTree.reroot(DeltaDataTree.java:815)
at org.eclipse.core.internal.dtree.DeltaDataTree.reroot(DeltaDataTree.java:815)
at org.eclipse.core.internal.dtree.DeltaDataTree.reroot(DeltaDataTree.java:792)
at org.eclipse.core.internal.watson.ElementTree.immutable(ElementTree.java:518)
at org.eclipse.core.internal.resources.SaveManager.restore(SaveManager.java:710)
at org.eclipse.core.internal.resources.SaveManager.startup(SaveManager.java:1530)
at org.eclipse.core.internal.resources.Workspace.startup(Workspace.java:2503)
at org.eclipse.core.internal.resources.Workspace.open(Workspace.java:2252)
at org.eclipse.core.resources.ResourcesPlugin.start(ResourcesPlugin.java:439)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl$1.run(BundleContextImpl.java:711)
at java.security.AccessController.doPrivileged(Native Method)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:702)
... 29 more
Root exception:
org.eclipse.core.internal.dtree.ObjectNotFoundException: Tree element '/Servers/Tomcat v7.0 Server at localhost-config/web.xml' not found.
at org.eclipse.core.internal.dtree.AbstractDataTree.handleNotFound(AbstractDataTree.java:257)
at org.eclipse.core.internal.dtree.DeltaDataTree.getData(DeltaDataTree.java:585)
at org.eclipse.core.internal.dtree.DataDeltaNode.asBackwardDelta(DataDeltaNode.java:50)
at org.eclipse.core.internal.dtree.DataDeltaNode.asBackwardDelta(DataDeltaNode.java:47)
at org.eclipse.core.internal.dtree.NoDataDeltaNode.asBackwardDelta(NoDataDeltaNode.java:59)
at org.eclipse.core.internal.dtree.DataDeltaNode.asBackwardDelta(DataDeltaNode.java:47)
at org.eclipse.core.internal.dtree.DeltaDataTree.asBackwardDelta(DeltaDataTree.java:88)
at org.eclipse.core.internal.dtree.DeltaDataTree.reroot(DeltaDataTree.java:816)
at org.eclipse.core.internal.dtree.DeltaDataTree.reroot(DeltaDataTree.java:815)
at org.eclipse.core.internal.dtree.DeltaDataTree.reroot(DeltaDataTree.java:815)
at org.eclipse.core.internal.dtree.DeltaDataTree.reroot(DeltaDataTree.java:815)
at org.eclipse.core.internal.dtree.DeltaDataTree.reroot(DeltaDataTree.java:815)
.
.
.
.
.
at org.eclipse.core.internal.dtree.DeltaDataTree.reroot(DeltaDataTree.java:815)
at org.eclipse.core.internal.dtree.DeltaDataTree.reroot(DeltaDataTree.java:815)
at org.eclipse.core.internal.dtree.DeltaDataTree.reroot(DeltaDataTree.java:792)
at org.eclipse.core.internal.watson.ElementTree.immutable(ElementTree.java:518)
at org.eclipse.core.internal.resources.SaveManager.restore(SaveManager.java:710)
at org.eclipse.core.internal.resources.SaveManager.startup(SaveManager.java:1530)
at org.eclipse.core.internal.resources.Workspace.startup(Workspace.java:2503)
at org.eclipse.core.internal.resources.Workspace.open(Workspace.java:2252)
at org.eclipse.core.resources.ResourcesPlugin.start(ResourcesPlugin.java:439)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl$1.run(BundleContextImpl.java:711)
at java.security.AccessController.doPrivileged(Native Method)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:702)
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.start(AbstractBundle.java:300)
at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:478)
at org.eclipse.osgi.internal.loader.BundleLoader.setLazyTrigger(BundleLoader.java:263)
at org.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:109)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass(ClasspathManager.java:469)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalClass(DefaultClassLoader.java:216)
at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:395)
at org.eclipse.osgi.internal.loader.SingleSourcePackage.loadClass(SingleSourcePackage.java:35)
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:461)
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(Unknown Source)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:125)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:354)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:181)
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 org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:636)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:591)
at org.eclipse.equinox.launcher.Main.run(Main.java:1450)
at org.eclipse.equinox.launcher.Main.main(Main.java:1426)
!ENTRY org.eclipse.osgi 4 0 2015-03-19 17:10:58.969
!MESSAGE Application error
!STACK 1
java.lang.NoClassDefFoundError: org/eclipse/core/resources/IContainer
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:125)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:354)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:181)
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 org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:636)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:591)
at org.eclipse.equinox.launcher.Main.run(Main.java:1450)
at org.eclipse.equinox.launcher.Main.main(Main.java:1426)
Caused by: org.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter$TerminatingClassNotFoundException: An error occurred while automatically activating bundle org.eclipse.core.resources (82).
at org.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:124)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass(ClasspathManager.java:469)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalClass(DefaultClassLoader.java:216)
at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:395)
at org.eclipse.osgi.internal.loader.SingleSourcePackage.loadClass(SingleSourcePackage.java:35)
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:461)
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(Unknown Source)
... 14 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.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.start(AbstractBundle.java:300)
at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:478)
at org.eclipse.osgi.internal.loader.BundleLoader.setLazyTrigger(BundleLoader.java:263)
at org.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:109)
... 23 more
Caused by: org.eclipse.core.internal.dtree.ObjectNotFoundException: Tree element '/Servers/Tomcat v7.0 Server at localhost-config/web.xml' not found.
at org.eclipse.core.internal.dtree.AbstractDataTree.handleNotFound(AbstractDataTree.java:257)
at org.eclipse.core.internal.dtree.DeltaDataTree.getData(DeltaDataTree.java:585)
at org.eclipse.core.internal.dtree.DataDeltaNode.asBackwardDelta(DataDeltaNode.java:50)
at org.eclipse.core.internal.dtree.DataDeltaNode.asBackwardDelta(DataDeltaNode.java:47)
at org.eclipse.core.internal.dtree.NoDataDeltaNode.asBackwardDelta(NoDataDeltaNode.java:59)
at org.eclipse.core.internal.dtree.DataDeltaNode.asBackwardDelta(DataDeltaNode.java:47)
at org.eclipse.core.internal.dtree.DeltaDataTree.asBackwardDelta(DeltaDataTree.java:88)
at org.eclipse.core.internal.dtree.DeltaDataTree.reroot(DeltaDataTree.java:816)
at org.eclipse.core.internal.dtree.DeltaDataTree.reroot(DeltaDataTree.java:815)
at org.eclipse.core.internal.dtree.DeltaDataTree.reroot(DeltaDataTree.java:815)
at org.eclipse.core.internal.dtree.DeltaDataTree.reroot(DeltaDataTree.java:815)
.
.
.
.
at org.eclipse.core.internal.dtree.DeltaDataTree.reroot(DeltaDataTree.java:815)
at org.eclipse.core.internal.dtree.DeltaDataTree.reroot(DeltaDataTree.java:815)
at org.eclipse.core.internal.dtree.DeltaDataTree.reroot(DeltaDataTree.java:792)
at org.eclipse.core.internal.watson.ElementTree.immutable(ElementTree.java:518)
at org.eclipse.core.internal.resources.SaveManager.restore(SaveManager.java:710)
at org.eclipse.core.internal.resources.SaveManager.startup(SaveManager.java:1530)
at org.eclipse.core.internal.resources.Workspace.startup(Workspace.java:2503)
at org.eclipse.core.internal.resources.Workspace.open(Workspace.java:2252)
at org.eclipse.core.resources.ResourcesPlugin.start(ResourcesPlugin.java:439)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl$1.run(BundleContextImpl.java:711)
at java.security.AccessController.doPrivileged(Native Method)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:702)
... 29 more
I tried to restart my computer twice (verify no file is locked).
I tried to remove the server folder.
My latest work isn't committed to SVN.
Any suggestion?
Thanks,

Found a solution!
I deleted the file: /.metadata/.plugins/org.eclipse.core.resources/.snap and it solved the problem.
Thanks!

It works after deleting .snap from .metadata\.plugins\org.eclipse.core.resources

I think this an error you can't get on it.
Try to move all the work in your workspace in a new workspace because it has to do with the bundle, that is the reason it as crashed previously and it won't work on the same workspace

Delete your workspace. Then open eclipse.
Take Backup before delete.

I'm running Red Hat Jboss Developer Studio 10.0 (a bundled version of Eclipse), and had this same problem.
Deleting the *.snap file in C:\workspace.metadata.plugins\org.eclipse.core.resources worked for me. (This is after an unexpected restart that wouldn't allow me to acknowledge the last Eclipse shut-down pop-up.)
As to why deleting it works, according to What are *.snap files in eclipse?:
"*.snap files represent the changes in workspace state of the IDE during the runtime. This is mostly for eclipse crash recovery plan. When a crash happens these files are used to recover the state of the eclipse workspace."
Apparently, if the crash is severe enough, the snap(shot?) file gets corrupted, and cannot get back to a last good state. But getting Eclipse up at all is better than nothing. You many need to re-import your projects (I had to import my latest one).

Eclipse - An Error Has Occured

For some reason I'm no longer able to fire up eclipse as every time I open it, i get an error that states : An error has occures, see log file x.log
I looked around online for this issue and one of the things that seamed to have solved it is by deleting all .snap files from .metadata.plugins\org.eclipse.core.resources folder but I couldn't find any .snap files (PS: this is now a clean install of eclipse)
I also tried re-installating JDK and JRE
java version "1.8.0_11"
Java(TM) SE Runtime Environment (build 1.8.0_11-b12)
Java HotSpot(TM) 64-Bit Server VM (build 25.11-b03, mixed mode)
I also tried running eclipse with cmd with eclipse - clean command but same error pops up.
I'm very new at this..can you please tell me what I'm doing wrong :)
Here's the log file:
!SESSION 2014-09-04 23:03:28.569 -----------------------------------------------
eclipse.buildId=M20060921-0945
java.version=1.7.0_60
java.vendor=Oracle Corporation
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=fr_CA
Command-line arguments: -os win32 -ws win32 -arch x86
!ENTRY system.bundle 4 0 2014-09-04 23:03:28.777
!MESSAGE FrameworkEvent.ERROR
!STACK 0
org.osgi.framework.BundleException: Exception in org.eclipse.osgi.framework.internal.core.SystemBundleActivator.start() of bundle system.bundle.
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:1010)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:966)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:549)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.incFWSL(StartLevelManager.java:484)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.doSetStartLevel(StartLevelManager.java:275)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.launch(StartLevelManager.java:245)
at org.eclipse.osgi.framework.internal.core.SystemBundle.resume(SystemBundle.java:155)
at org.eclipse.osgi.framework.internal.core.Framework.launch(Framework.java:503)
at org.eclipse.osgi.framework.internal.core.OSGi.launch(OSGi.java:51)
at org.eclipse.core.runtime.adaptor.EclipseStarter.startup(EclipseStarter.java:289)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:173)
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 org.eclipse.core.launcher.Main.invokeFramework(Main.java:336)
at org.eclipse.core.launcher.Main.basicRun(Main.java:280)
at org.eclipse.core.launcher.Main.run(Main.java:977)
at org.eclipse.core.launcher.Main.main(Main.java:952)
Caused by: java.lang.IllegalStateException
at org.eclipse.osgi.internal.baseadaptor.BaseStorage.checkSystemState(BaseStorage.java:654)
at org.eclipse.osgi.internal.baseadaptor.BaseStorage.getStateManager(BaseStorage.java:634)
at org.eclipse.osgi.baseadaptor.BaseAdaptor.getPlatformAdmin(BaseAdaptor.java:385)
at org.eclipse.core.runtime.internal.adaptor.EclipseAdaptorHook.frameworkStart(EclipseAdaptorHook.java:80)
at org.eclipse.osgi.baseadaptor.BaseAdaptor.frameworkStart(BaseAdaptor.java:260)
at org.eclipse.osgi.framework.internal.core.SystemBundleActivator.start(SystemBundleActivator.java:55)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl$2.run(BundleContextImpl.java:991)
at java.security.AccessController.doPrivileged(Native Method)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:985)
... 18 more
Root exception:
java.lang.IllegalStateException
at org.eclipse.osgi.internal.baseadaptor.BaseStorage.checkSystemState(BaseStorage.java:654)
at org.eclipse.osgi.internal.baseadaptor.BaseStorage.getStateManager(BaseStorage.java:634)
at org.eclipse.osgi.baseadaptor.BaseAdaptor.getPlatformAdmin(BaseAdaptor.java:385)
at org.eclipse.core.runtime.internal.adaptor.EclipseAdaptorHook.frameworkStart(EclipseAdaptorHook.java:80)
at org.eclipse.osgi.baseadaptor.BaseAdaptor.frameworkStart(BaseAdaptor.java:260)
at org.eclipse.osgi.framework.internal.core.SystemBundleActivator.start(SystemBundleActivator.java:55)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl$2.run(BundleContextImpl.java:991)
at java.security.AccessController.doPrivileged(Native Method)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:985)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:966)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:549)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.incFWSL(StartLevelManager.java:484)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.doSetStartLevel(StartLevelManager.java:275)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.launch(StartLevelManager.java:245)
at org.eclipse.osgi.framework.internal.core.SystemBundle.resume(SystemBundle.java:155)
at org.eclipse.osgi.framework.internal.core.Framework.launch(Framework.java:503)
at org.eclipse.osgi.framework.internal.core.OSGi.launch(OSGi.java:51)
at org.eclipse.core.runtime.adaptor.EclipseStarter.startup(EclipseStarter.java:289)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:173)
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 org.eclipse.core.launcher.Main.invokeFramework(Main.java:336)
at org.eclipse.core.launcher.Main.basicRun(Main.java:280)
at org.eclipse.core.launcher.Main.run(Main.java:977)
at org.eclipse.core.launcher.Main.main(Main.java:952)
!ENTRY org.eclipse.osgi 4 0 2014-09-04 23:03:28.783
!MESSAGE Startup error
!STACK 1
java.lang.RuntimeException: Exception in org.eclipse.osgi.framework.internal.core.SystemBundleActivator.start() of bundle system.bundle.
at org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:557)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.incFWSL(StartLevelManager.java:484)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.doSetStartLevel(StartLevelManager.java:275)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.launch(StartLevelManager.java:245)
at org.eclipse.osgi.framework.internal.core.SystemBundle.resume(SystemBundle.java:155)
at org.eclipse.osgi.framework.internal.core.Framework.launch(Framework.java:503)
at org.eclipse.osgi.framework.internal.core.OSGi.launch(OSGi.java:51)
at org.eclipse.core.runtime.adaptor.EclipseStarter.startup(EclipseStarter.java:289)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:173)
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 org.eclipse.core.launcher.Main.invokeFramework(Main.java:336)
at org.eclipse.core.launcher.Main.basicRun(Main.java:280)
at org.eclipse.core.launcher.Main.run(Main.java:977)
at org.eclipse.core.launcher.Main.main(Main.java:952)
!SESSION Thu Sep 04 23:03:28 EDT 2014 ------------------------------------------
!ENTRY org.eclipse.core.launcher 4 0 2014-09-04 23:03:28.791
!MESSAGE Exception launching the Eclipse Platform:
!STACK
java.lang.NullPointerException
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:186)
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 org.eclipse.core.launcher.Main.invokeFramework(Main.java:336)
at org.eclipse.core.launcher.Main.basicRun(Main.java:280)
at org.eclipse.core.launcher.Main.run(Main.java:977)
at org.eclipse.core.launcher.Main.main(Main.java:952)

Try to delete the .metadata file and again restart the eclips with the workspace. Due to some changes the metadata may be holding the older information related to eclipse and workspace.

After I installed JDK 1.9, I got this error and changed it to 1.8.

you should change jdk for 1.8,it will be ok.

Why is Eclipse 3.2 throwing an error on startup

I have a windows 32 bit computer and just downloaded The Eclipse 3.2 SDK and can not get it to start. It immedietly throws the following error to a log file.
I have tried starting it with a java 1.5 VM and still haven't had any luck. Any Ideas? Thanks
!SESSION 2012-08-07 11:10:28.084 -----------------------------------------------
eclipse.buildId=#build#
java.version=1.7.0_05
java.vendor=Oracle Corporation
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=en_US
Command-line arguments: -os win32 -ws win32 -arch x86
!ENTRY system.bundle 4 0 2012-08-07 11:10:28.519
!MESSAGE FrameworkEvent.ERROR
!STACK 0
org.osgi.framework.BundleException: Exception in org.eclipse.osgi.framework.internal.core.SystemBundleActivator.start() of bundle system.bundle.
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:1014)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:970)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:549)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.incFWSL(StartLevelManager.java:484)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.doSetStartLevel(StartLevelManager.java:275)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.launch(StartLevelManager.java:245)
at org.eclipse.osgi.framework.internal.core.SystemBundle.resume(SystemBundle.java:155)
at org.eclipse.osgi.framework.internal.core.Framework.launch(Framework.java:503)
at org.eclipse.osgi.framework.internal.core.OSGi.launch(OSGi.java:51)
at org.eclipse.core.runtime.adaptor.EclipseStarter.startup(EclipseStarter.java:289)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:173)
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 org.eclipse.core.launcher.Main.invokeFramework(Main.java:336)
at org.eclipse.core.launcher.Main.basicRun(Main.java:280)
at org.eclipse.core.launcher.Main.run(Main.java:977)
at org.eclipse.core.launcher.Main.main(Main.java:952)
Caused by: java.lang.IllegalStateException
at org.eclipse.osgi.internal.baseadaptor.BaseStorage.checkSystemState(BaseStorage.java:654)
at org.eclipse.osgi.internal.baseadaptor.BaseStorage.getStateManager(BaseStorage.java:634)
at org.eclipse.osgi.baseadaptor.BaseAdaptor.getPlatformAdmin(BaseAdaptor.java:385)
at org.eclipse.core.runtime.internal.adaptor.EclipseAdaptorHook.frameworkStart(EclipseAdaptorHook.java:80)
at org.eclipse.osgi.baseadaptor.BaseAdaptor.frameworkStart(BaseAdaptor.java:260)
at org.eclipse.osgi.framework.internal.core.SystemBundleActivator.start(SystemBundleActivator.java:55)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl$2.run(BundleContextImpl.java:995)
at java.security.AccessController.doPrivileged(Native Method)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:989)
... 18 more
Root exception:
java.lang.IllegalStateException
at org.eclipse.osgi.internal.baseadaptor.BaseStorage.checkSystemState(BaseStorage.java:654)
at org.eclipse.osgi.internal.baseadaptor.BaseStorage.getStateManager(BaseStorage.java:634)
at org.eclipse.osgi.baseadaptor.BaseAdaptor.getPlatformAdmin(BaseAdaptor.java:385)
at org.eclipse.core.runtime.internal.adaptor.EclipseAdaptorHook.frameworkStart(EclipseAdaptorHook.java:80)
at org.eclipse.osgi.baseadaptor.BaseAdaptor.frameworkStart(BaseAdaptor.java:260)
at org.eclipse.osgi.framework.internal.core.SystemBundleActivator.start(SystemBundleActivator.java:55)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl$2.run(BundleContextImpl.java:995)
at java.security.AccessController.doPrivileged(Native Method)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:989)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:970)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:549)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.incFWSL(StartLevelManager.java:484)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.doSetStartLevel(StartLevelManager.java:275)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.launch(StartLevelManager.java:245)
at org.eclipse.osgi.framework.internal.core.SystemBundle.resume(SystemBundle.java:155)
at org.eclipse.osgi.framework.internal.core.Framework.launch(Framework.java:503)
at org.eclipse.osgi.framework.internal.core.OSGi.launch(OSGi.java:51)
at org.eclipse.core.runtime.adaptor.EclipseStarter.startup(EclipseStarter.java:289)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:173)
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 org.eclipse.core.launcher.Main.invokeFramework(Main.java:336)
at org.eclipse.core.launcher.Main.basicRun(Main.java:280)
at org.eclipse.core.launcher.Main.run(Main.java:977)
at org.eclipse.core.launcher.Main.main(Main.java:952)
!ENTRY org.eclipse.osgi 4 0 2012-08-07 11:10:28.524
!MESSAGE Startup error
!STACK 1
java.lang.RuntimeException: Exception in org.eclipse.osgi.framework.internal.core.SystemBundleActivator.start() of bundle system.bundle.
at org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:557)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.incFWSL(StartLevelManager.java:484)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.doSetStartLevel(StartLevelManager.java:275)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.launch(StartLevelManager.java:245)
at org.eclipse.osgi.framework.internal.core.SystemBundle.resume(SystemBundle.java:155)
at org.eclipse.osgi.framework.internal.core.Framework.launch(Framework.java:503)
at org.eclipse.osgi.framework.internal.core.OSGi.launch(OSGi.java:51)
at org.eclipse.core.runtime.adaptor.EclipseStarter.startup(EclipseStarter.java:289)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:173)
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 org.eclipse.core.launcher.Main.invokeFramework(Main.java:336)
at org.eclipse.core.launcher.Main.basicRun(Main.java:280)
at org.eclipse.core.launcher.Main.run(Main.java:977)
at org.eclipse.core.launcher.Main.main(Main.java:952)
!SESSION Tue Aug 07 11:10:28 EDT 2012 ------------------------------------------
!ENTRY org.eclipse.core.launcher 4 0 2012-08-07 11:10:28.526
!MESSAGE Exception launching the Eclipse Platform:
!STACK
java.lang.NullPointerException
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:186)
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 org.eclipse.core.launcher.Main.invokeFramework(Main.java:336)
at org.eclipse.core.launcher.Main.basicRun(Main.java:280)
at org.eclipse.core.launcher.Main.run(Main.java:977)
at org.eclipse.core.launcher.Main.main(Main.java:952)
UPDATE
After reinstalling the JVM and using the -vm path parameter I still get the following error
java.lang.IllegalStateException: Unable to acquire application service. Ensure that the org.eclipse.core.runtime bundle is resolved and started (see config.ini).
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:65)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:400)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:177)

The problem can be solved as follows.
Edit the eclipse.ini file located in your Eclipse install directory and insert -clean as the first line.
This will force Eclipse to run. You can then remove the -clean line from the .ini file

Although this is an old thread, I'll contribute in case someone Googles this issue. I started having this problem after Java 7 Update 11 was installed. I uninstalled update 11 and now eclipse works just fine. I run eclipse from \Program Files\eclipse.

I had the same problem on Ubuntu and solved by running:
eclipse -clean

You need to set the version of the JDK you are using
Don't know it it will work...
We use it for a 3rd party app which is eclipse based (very old) but it has a launhcer.ini where you specify the vm args etc.
I just added the following to be the first line.
-vm
C:\Program Files\Java\jdk1.5.0_22\bin\javaw.exe

The only thing that i can think of doing is re-installing java from here, and re-downloading and installing eclipse (the newest version) from here. Let me know if it works!

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