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Can not start eclipse because of this error: !SESSION 2021-09-07 10:23:28.907 ----------------------------------------------- eclipse.buildId=4.20.0.I20210611-1600 java.version=16.0.1 java.vendor=Oracle Corporation BootLoader constants: OS=win32, ARCH=x86_64, WS=win32, NL=de_DE 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.osgi 4 0 2021-09-07 10:23:30.149 !MESSAGE An error occurred while automatically activating bundle org.eclipse.core.resources (127). !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:835) at org.eclipse.osgi.internal.framework.BundleContextImpl.start(BundleContextImpl.java:763) at org.eclipse.osgi.internal.framework.EquinoxBundle.startWorker0(EquinoxBundle.java:1028) at org.eclipse.osgi.internal.framework.EquinoxBundle$EquinoxModule.startWorker(EquinoxBundle.java:371) at org.eclipse.osgi.container.Module.doStart(Module.java:605) at org.eclipse.osgi.container.Module.start(Module.java:468) at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:511) at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:117) at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClass(ClasspathManager.java:572) at org.eclipse.osgi.internal.loader.ModuleClassLoader.findLocalClass(ModuleClassLoader.java:345) at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:401) at org.eclipse.osgi.internal.loader.sources.SingleSourcePackage.loadClass(SingleSourcePackage.java:41) at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:476) at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:170) at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:519) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:153) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) 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:401) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:567) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:654) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:591) at org.eclipse.equinox.launcher.Main.run(Main.java:1462) Caused by: java.lang.NullPointerException: Cannot invoke "org.eclipse.core.internal.resources.ResourceInfo.setNodeId(long)" because "result" is null at org.eclipse.core.internal.resources.Workspace.newElement(Workspace.java:2113) at org.eclipse.core.internal.resources.SaveManager.readElement(SaveManager.java:545) at org.eclipse.core.internal.watson.ElementTreeReader$1.readData(ElementTreeReader.java:68) at org.eclipse.core.internal.dtree.DataTreeReader.readNode(DataTreeReader.java:91) at org.eclipse.core.internal.dtree.DataTreeReader.readNode(DataTreeReader.java:105) at org.eclipse.core.internal.dtree.DataTreeReader.readNode(DataTreeReader.java:105) at org.eclipse.core.internal.dtree.DataTreeReader.readNode(DataTreeReader.java:105) at org.eclipse.core.internal.dtree.DataTreeReader.readNode(DataTreeReader.java:105) at org.eclipse.core.internal.dtree.DataTreeReader.readNode(DataTreeReader.java:105) at org.eclipse.core.internal.dtree.DataTreeReader.readTree(DataTreeReader.java:149) at org.eclipse.core.internal.watson.ElementTreeReaderImpl_1.readTree(ElementTreeReaderImpl_1.java:101) at org.eclipse.core.internal.watson.ElementTreeReader.readTree(ElementTreeReader.java:156) at org.eclipse.core.internal.watson.ElementTreeReaderImpl_1.readDeltaChain(ElementTreeReaderImpl_1.java:85) at org.eclipse.core.internal.watson.ElementTreeReader.readDeltaChain(ElementTreeReader.java:115) at org.eclipse.core.internal.resources.WorkspaceTreeReader_1.readTrees(WorkspaceTreeReader_1.java:239) at org.eclipse.core.internal.resources.WorkspaceTreeReader_2.readTree(WorkspaceTreeReader_2.java:111) at org.eclipse.core.internal.resources.SaveManager.restoreTree(SaveManager.java:1038) at org.eclipse.core.internal.resources.SaveManager.restore(SaveManager.java:708) at org.eclipse.core.internal.resources.SaveManager.startup(SaveManager.java:1555) at org.eclipse.core.internal.resources.Workspace.startup(Workspace.java:2480) at org.eclipse.core.internal.resources.Workspace.open(Workspace.java:2231) at org.eclipse.core.resources.ResourcesPlugin.start(ResourcesPlugin.java:475) at org.eclipse.osgi.internal.framework.BundleContextImpl$2.run(BundleContextImpl.java:814) at org.eclipse.osgi.internal.framework.BundleContextImpl$2.run(BundleContextImpl.java:1) at java.base/java.security.AccessController.doPrivileged(AccessController.java:554) at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:806) ... 27 more Root exception: java.lang.NullPointerException: Cannot invoke "org.eclipse.core.internal.resources.ResourceInfo.setNodeId(long)" because "result" is null at org.eclipse.core.internal.resources.Workspace.newElement(Workspace.java:2113) at org.eclipse.core.internal.resources.SaveManager.readElement(SaveManager.java:545) at org.eclipse.core.internal.watson.ElementTreeReader$1.readData(ElementTreeReader.java:68) at org.eclipse.core.internal.dtree.DataTreeReader.readNode(DataTreeReader.java:91) at org.eclipse.core.internal.dtree.DataTreeReader.readNode(DataTreeReader.java:105) at org.eclipse.core.internal.dtree.DataTreeReader.readNode(DataTreeReader.java:105) at org.eclipse.core.internal.dtree.DataTreeReader.readNode(DataTreeReader.java:105) at org.eclipse.core.internal.dtree.DataTreeReader.readNode(DataTreeReader.java:105) at org.eclipse.core.internal.dtree.DataTreeReader.readNode(DataTreeReader.java:105) at org.eclipse.core.internal.dtree.DataTreeReader.readTree(DataTreeReader.java:149) at org.eclipse.core.internal.watson.ElementTreeReaderImpl_1.readTree(ElementTreeReaderImpl_1.java:101) at org.eclipse.core.internal.watson.ElementTreeReader.readTree(ElementTreeReader.java:156) at org.eclipse.core.internal.watson.ElementTreeReaderImpl_1.readDeltaChain(ElementTreeReaderImpl_1.java:85) at org.eclipse.core.internal.watson.ElementTreeReader.readDeltaChain(ElementTreeReader.java:115) at org.eclipse.core.internal.resources.WorkspaceTreeReader_1.readTrees(WorkspaceTreeReader_1.java:239) at org.eclipse.core.internal.resources.WorkspaceTreeReader_2.readTree(WorkspaceTreeReader_2.java:111) at org.eclipse.core.internal.resources.SaveManager.restoreTree(SaveManager.java:1038) at org.eclipse.core.internal.resources.SaveManager.restore(SaveManager.java:708) at org.eclipse.core.internal.resources.SaveManager.startup(SaveManager.java:1555) at org.eclipse.core.internal.resources.Workspace.startup(Workspace.java:2480) at org.eclipse.core.internal.resources.Workspace.open(Workspace.java:2231) at org.eclipse.core.resources.ResourcesPlugin.start(ResourcesPlugin.java:475) at org.eclipse.osgi.internal.framework.BundleContextImpl$2.run(BundleContextImpl.java:814) at org.eclipse.osgi.internal.framework.BundleContextImpl$2.run(BundleContextImpl.java:1) at java.base/java.security.AccessController.doPrivileged(AccessController.java:554) at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:806) at org.eclipse.osgi.internal.framework.BundleContextImpl.start(BundleContextImpl.java:763) at org.eclipse.osgi.internal.framework.EquinoxBundle.startWorker0(EquinoxBundle.java:1028) at org.eclipse.osgi.internal.framework.EquinoxBundle$EquinoxModule.startWorker(EquinoxBundle.java:371) at org.eclipse.osgi.container.Module.doStart(Module.java:605) at org.eclipse.osgi.container.Module.start(Module.java:468) at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:511) at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:117) at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClass(ClasspathManager.java:572) at org.eclipse.osgi.internal.loader.ModuleClassLoader.findLocalClass(ModuleClassLoader.java:345) at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:401) at org.eclipse.osgi.internal.loader.sources.SingleSourcePackage.loadClass(SingleSourcePackage.java:41) at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:476) at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:170) at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:519) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:153) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) 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:401) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:567) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:654) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:591) at org.eclipse.equinox.launcher.Main.run(Main.java:1462) !ENTRY org.eclipse.osgi 4 0 2021-09-07 10:23:30.158 !MESSAGE Application error !STACK 1 java.lang.NoClassDefFoundError: org/eclipse/core/resources/IContainer at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:153) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) 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:401) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:567) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:654) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:591) at org.eclipse.equinox.launcher.Main.run(Main.java:1462) Caused by: java.lang.ClassNotFoundException: An error occurred while automatically activating bundle org.eclipse.core.resources (127). at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:126) at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClass(ClasspathManager.java:572) at org.eclipse.osgi.internal.loader.ModuleClassLoader.findLocalClass(ModuleClassLoader.java:345) at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:401) at org.eclipse.osgi.internal.loader.sources.SingleSourcePackage.loadClass(SingleSourcePackage.java:41) at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:476) at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:170) at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:519) ... 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:835) at org.eclipse.osgi.internal.framework.BundleContextImpl.start(BundleContextImpl.java:763) at org.eclipse.osgi.internal.framework.EquinoxBundle.startWorker0(EquinoxBundle.java:1028) at org.eclipse.osgi.internal.framework.EquinoxBundle$EquinoxModule.startWorker(EquinoxBundle.java:371) at org.eclipse.osgi.container.Module.doStart(Module.java:605) at org.eclipse.osgi.container.Module.start(Module.java:468) at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:511) at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:117) ... 20 more Caused by: java.lang.NullPointerException: Cannot invoke "org.eclipse.core.internal.resources.ResourceInfo.setNodeId(long)" because "result" is null at org.eclipse.core.internal.resources.Workspace.newElement(Workspace.java:2113) at org.eclipse.core.internal.resources.SaveManager.readElement(SaveManager.java:545) at org.eclipse.core.internal.watson.ElementTreeReader$1.readData(ElementTreeReader.java:68) at org.eclipse.core.internal.dtree.DataTreeReader.readNode(DataTreeReader.java:91) at org.eclipse.core.internal.dtree.DataTreeReader.readNode(DataTreeReader.java:105) at org.eclipse.core.internal.dtree.DataTreeReader.readNode(DataTreeReader.java:105) at org.eclipse.core.internal.dtree.DataTreeReader.readNode(DataTreeReader.java:105) at org.eclipse.core.internal.dtree.DataTreeReader.readNode(DataTreeReader.java:105) at org.eclipse.core.internal.dtree.DataTreeReader.readNode(DataTreeReader.java:105) at org.eclipse.core.internal.dtree.DataTreeReader.readTree(DataTreeReader.java:149) at org.eclipse.core.internal.watson.ElementTreeReaderImpl_1.readTree(ElementTreeReaderImpl_1.java:101) at org.eclipse.core.internal.watson.ElementTreeReader.readTree(ElementTreeReader.java:156) at org.eclipse.core.internal.watson.ElementTreeReaderImpl_1.readDeltaChain(ElementTreeReaderImpl_1.java:85) at org.eclipse.core.internal.watson.ElementTreeReader.readDeltaChain(ElementTreeReader.java:115) at org.eclipse.core.internal.resources.WorkspaceTreeReader_1.readTrees(WorkspaceTreeReader_1.java:239) at org.eclipse.core.internal.resources.WorkspaceTreeReader_2.readTree(WorkspaceTreeReader_2.java:111) at org.eclipse.core.internal.resources.SaveManager.restoreTree(SaveManager.java:1038) at org.eclipse.core.internal.resources.SaveManager.restore(SaveManager.java:708) at org.eclipse.core.internal.resources.SaveManager.startup(SaveManager.java:1555) at org.eclipse.core.internal.resources.Workspace.startup(Workspace.java:2480) at org.eclipse.core.internal.resources.Workspace.open(Workspace.java:2231) at org.eclipse.core.resources.ResourcesPlugin.start(ResourcesPlugin.java:475) at org.eclipse.osgi.internal.framework.BundleContextImpl$2.run(BundleContextImpl.java:814) at org.eclipse.osgi.internal.framework.BundleContextImpl$2.run(BundleContextImpl.java:1) at java.base/java.security.AccessController.doPrivileged(AccessController.java:554) at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:806) ... 27 more Any suggestions?
Please attach full error log including errors from previous sessions in same workspace. Looks like your saved workspace is corrupt (code that reads data doesn't read proper id from disk). If you have steps to reproduce (starting with a fresh workspace), please post them here, otherwise I would close it as "not eclipse" (assuming the previous save to disk failed dues some IO error).