!SESSION 2023-04-20 10:02:31.354 ----------------------------------------------- eclipse.buildId=unknown java.version=17.0.5 java.vendor=Eclipse Adoptium BootLoader constants: OS=win32, ARCH=x86_64, WS=win32, NL=en_US Command-line arguments: -os win32 -ws win32 -arch x86_64 !ENTRY org.eclipse.osgi 4 0 2023-04-20 10:03:05.487 !MESSAGE An error occurred while automatically activating bundle org.knime.python2 (642). !STACK 0 org.osgi.framework.BundleException: Exception in org.knime.python2.Activator.start() of bundle org.knime.python2. at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:839) at org.eclipse.osgi.internal.framework.BundleContextImpl.start(BundleContextImpl.java:767) at org.eclipse.osgi.internal.framework.EquinoxBundle.startWorker0(EquinoxBundle.java:1032) 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:513) at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:117) at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClass(ClasspathManager.java:570) at org.eclipse.osgi.internal.loader.ModuleClassLoader.findLocalClass(ModuleClassLoader.java:335) at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:397) at org.eclipse.osgi.internal.loader.sources.SingleSourcePackage.loadClass(SingleSourcePackage.java:41) at org.eclipse.osgi.internal.loader.BundleLoader.findClass0(BundleLoader.java:496) at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:416) at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:168) at java.base/java.lang.ClassLoader.loadClass(Unknown Source) at org.knime.python.Activator.createPythonCommandProcessBuilder(Activator.java:114) at org.knime.python.Activator.testPythonInstallation(Activator.java:127) at org.knime.python.Activator$1.run(Activator.java:88) at java.base/java.lang.Thread.run(Unknown Source) Caused by: java.lang.IllegalStateException: Invalid extension point: 'org.knime.python2.serializationlibrary'. at org.knime.python2.extensions.serializationlibrary.SerializationLibraryExtensions.register(SerializationLibraryExtensions.java:116) at org.knime.python2.extensions.serializationlibrary.SerializationLibraryExtensions.getInitializedInstance(SerializationLibraryExtensions.java:98) at org.knime.python2.extensions.serializationlibrary.SerializationLibraryExtensions.init(SerializationLibraryExtensions.java:90) at org.knime.python2.Activator.testPythonInstallation(Activator.java:94) at org.knime.python2.Activator.start(Activator.java:86) at org.eclipse.osgi.internal.framework.BundleContextImpl$2.run(BundleContextImpl.java:818) at org.eclipse.osgi.internal.framework.BundleContextImpl$2.run(BundleContextImpl.java:1) at java.base/java.security.AccessController.doPrivileged(Unknown Source) at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:810) ... 19 more Root exception: java.lang.IllegalStateException: Invalid extension point: 'org.knime.python2.serializationlibrary'. at org.knime.python2.extensions.serializationlibrary.SerializationLibraryExtensions.register(SerializationLibraryExtensions.java:116) at org.knime.python2.extensions.serializationlibrary.SerializationLibraryExtensions.getInitializedInstance(SerializationLibraryExtensions.java:98) at org.knime.python2.extensions.serializationlibrary.SerializationLibraryExtensions.init(SerializationLibraryExtensions.java:90) at org.knime.python2.Activator.testPythonInstallation(Activator.java:94) at org.knime.python2.Activator.start(Activator.java:86) at org.eclipse.osgi.internal.framework.BundleContextImpl$2.run(BundleContextImpl.java:818) at org.eclipse.osgi.internal.framework.BundleContextImpl$2.run(BundleContextImpl.java:1) at java.base/java.security.AccessController.doPrivileged(Unknown Source) at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:810) at org.eclipse.osgi.internal.framework.BundleContextImpl.start(BundleContextImpl.java:767) at org.eclipse.osgi.internal.framework.EquinoxBundle.startWorker0(EquinoxBundle.java:1032) at org.eclipse.osgi.internal.framework.EquinoxBundle$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:513) at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:117) at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClass(ClasspathManager.java:570) at org.eclipse.osgi.internal.loader.ModuleClassLoader.findLocalClass(ModuleClassLoader.java:335) at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:397) at org.eclipse.osgi.internal.loader.sources.SingleSourcePackage.loadClass(SingleSourcePackage.java:41) at org.eclipse.osgi.internal.loader.BundleLoader.findClass0(BundleLoader.java:496) at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:416) at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:168) at java.base/java.lang.ClassLoader.loadClass(Unknown Source) at org.knime.python.Activator.createPythonCommandProcessBuilder(Activator.java:114) at org.knime.python.Activator.testPythonInstallation(Activator.java:127) at org.knime.python.Activator$1.run(Activator.java:88) at java.base/java.lang.Thread.run(Unknown Source) !ENTRY org.eclipse.equinox.registry 4 1 2023-04-20 10:06:45.253 !MESSAGE Unable to create the selected preference page. !STACK 0 java.lang.NoClassDefFoundError: org/knime/python2/prefs/AbstractPythonPreferencePage at java.base/java.lang.ClassLoader.defineClass1(Native Method) at java.base/java.lang.ClassLoader.defineClass(Unknown Source) at org.eclipse.osgi.internal.loader.ModuleClassLoader.defineClass(ModuleClassLoader.java:283) at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.defineClass(ClasspathManager.java:716) at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findClassImpl(ClasspathManager.java:639) at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClassImpl(ClasspathManager.java:607) at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClassImpl(ClasspathManager.java:587) at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClass(ClasspathManager.java:566) at org.eclipse.osgi.internal.loader.ModuleClassLoader.findLocalClass(ModuleClassLoader.java:335) at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:397) at org.eclipse.osgi.internal.loader.BundleLoader.findClass0(BundleLoader.java:500) at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:416) at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:168) at java.base/java.lang.ClassLoader.loadClass(Unknown Source) at org.eclipse.osgi.internal.framework.EquinoxBundle.loadClass(EquinoxBundle.java:622) at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:196) at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:920) at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:246) at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:63) at org.eclipse.ui.internal.WorkbenchPlugin.createExtension(WorkbenchPlugin.java:281) at org.eclipse.ui.internal.dialogs.WorkbenchPreferenceNode.createPage(WorkbenchPreferenceNode.java:52) at org.eclipse.jface.preference.PreferenceDialog.createPage(PreferenceDialog.java:1280) at org.eclipse.ui.internal.dialogs.FilteredPreferenceDialog.createPage(FilteredPreferenceDialog.java:338) at org.eclipse.jface.preference.PreferenceDialog.showPage(PreferenceDialog.java:1166) at org.eclipse.ui.internal.dialogs.FilteredPreferenceDialog.showPage(FilteredPreferenceDialog.java:630) at org.eclipse.jface.preference.PreferenceDialog$5.lambda$0(PreferenceDialog.java:660) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:74) at org.eclipse.jface.preference.PreferenceDialog$5.selectionChanged(PreferenceDialog.java:657) at org.eclipse.jface.viewers.StructuredViewer$3.run(StructuredViewer.java:821) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45) at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:174) at org.eclipse.jface.viewers.StructuredViewer.firePostSelectionChanged(StructuredViewer.java:818) at org.eclipse.jface.viewers.StructuredViewer.handlePostSelect(StructuredViewer.java:1191) at org.eclipse.swt.events.SelectionListener$1.widgetSelected(SelectionListener.java:84) at org.eclipse.jface.util.OpenStrategy.firePostSelectionEvent(OpenStrategy.java:284) at org.eclipse.jface.util.OpenStrategy$1.lambda$1(OpenStrategy.java:438) at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:40) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:132) at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4043) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3648) at org.eclipse.jface.window.Window.runEventLoop(Window.java:823) at org.eclipse.jface.window.Window.open(Window.java:799) at org.eclipse.ui.internal.OpenPreferencesAction.run(OpenPreferencesAction.java:66) at org.eclipse.jface.action.Action.runWithEvent(Action.java:474) at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:580) at org.eclipse.jface.action.ActionContributionItem.lambda$4(ActionContributionItem.java:414) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4251) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1066) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4068) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3645) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1155) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1046) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:155) at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:644) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:551) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:156) at org.knime.product.rcp.KNIMEApplication.start(KNIMEApplication.java:191) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:136) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:402) 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(Unknown Source) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.base/java.lang.reflect.Method.invoke(Unknown Source) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:659) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:596) at org.eclipse.equinox.launcher.Main.run(Main.java:1467) Caused by: java.lang.ClassNotFoundException: An error occurred while automatically activating bundle org.knime.python2 (642). at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:126) at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClass(ClasspathManager.java:570) at org.eclipse.osgi.internal.loader.ModuleClassLoader.findLocalClass(ModuleClassLoader.java:335) at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:397) at org.eclipse.osgi.internal.loader.sources.SingleSourcePackage.loadClass(SingleSourcePackage.java:41) at org.eclipse.osgi.internal.loader.BundleLoader.findClass0(BundleLoader.java:496) at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:416) at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:168) at java.base/java.lang.ClassLoader.loadClass(Unknown Source) at org.knime.python.Activator.createPythonCommandProcessBuilder(Activator.java:114) at org.knime.python.Activator.testPythonInstallation(Activator.java:127) at org.knime.python.Activator$1.run(Activator.java:88) at java.base/java.lang.Thread.run(Unknown Source) Caused by: org.osgi.framework.BundleException: Exception in org.knime.python2.Activator.start() of bundle org.knime.python2. at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:839) at org.eclipse.osgi.internal.framework.BundleContextImpl.start(BundleContextImpl.java:767) at org.eclipse.osgi.internal.framework.EquinoxBundle.startWorker0(EquinoxBundle.java:1032) at org.eclipse.osgi.internal.framework.EquinoxBundle$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:513) at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:117) ... 12 more Caused by: java.lang.IllegalStateException: Invalid extension point: 'org.knime.python2.serializationlibrary'. at org.knime.python2.extensions.serializationlibrary.SerializationLibraryExtensions.register(SerializationLibraryExtensions.java:116) at org.knime.python2.extensions.serializationlibrary.SerializationLibraryExtensions.getInitializedInstance(SerializationLibraryExtensions.java:98) at org.knime.python2.extensions.serializationlibrary.SerializationLibraryExtensions.init(SerializationLibraryExtensions.java:90) at org.knime.python2.Activator.testPythonInstallation(Activator.java:94) at org.knime.python2.Activator.start(Activator.java:86) at org.eclipse.osgi.internal.framework.BundleContextImpl$2.run(BundleContextImpl.java:818) at org.eclipse.osgi.internal.framework.BundleContextImpl$2.run(BundleContextImpl.java:1) at java.base/java.security.AccessController.doPrivileged(Unknown Source) at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:810) ... 19 more !ENTRY org.eclipse.equinox.registry 4 1 2023-04-20 10:06:53.712 !MESSAGE Unable to create the selected preference page. !STACK 0 java.lang.ClassNotFoundException: An error occurred while automatically activating bundle org.knime.python2 (642). at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:126) at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClass(ClasspathManager.java:570) at org.eclipse.osgi.internal.loader.ModuleClassLoader.findLocalClass(ModuleClassLoader.java:335) at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:397) at org.eclipse.osgi.internal.loader.sources.SingleSourcePackage.loadClass(SingleSourcePackage.java:41) at org.eclipse.osgi.internal.loader.BundleLoader.findClass0(BundleLoader.java:496) at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:416) at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:168) at java.base/java.lang.ClassLoader.loadClass(Unknown Source) at org.knime.python.Activator.createPythonCommandProcessBuilder(Activator.java:114) at org.knime.python.Activator.testPythonInstallation(Activator.java:127) at org.knime.python.Activator$1.run(Activator.java:88) at java.base/java.lang.Thread.run(Unknown Source) Caused by: org.osgi.framework.BundleException: Exception in org.knime.python2.Activator.start() of bundle org.knime.python2. at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:839) at org.eclipse.osgi.internal.framework.BundleContextImpl.start(BundleContextImpl.java:767) at org.eclipse.osgi.internal.framework.EquinoxBundle.startWorker0(EquinoxBundle.java:1032) at org.eclipse.osgi.internal.framework.EquinoxBundle$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:513) at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:117) ... 12 more Caused by: java.lang.IllegalStateException: Invalid extension point: 'org.knime.python2.serializationlibrary'. at org.knime.python2.extensions.serializationlibrary.SerializationLibraryExtensions.register(SerializationLibraryExtensions.java:116) at org.knime.python2.extensions.serializationlibrary.SerializationLibraryExtensions.getInitializedInstance(SerializationLibraryExtensions.java:98) at org.knime.python2.extensions.serializationlibrary.SerializationLibraryExtensions.init(SerializationLibraryExtensions.java:90) at org.knime.python2.Activator.testPythonInstallation(Activator.java:94) at org.knime.python2.Activator.start(Activator.java:86) at org.eclipse.osgi.internal.framework.BundleContextImpl$2.run(BundleContextImpl.java:818) at org.eclipse.osgi.internal.framework.BundleContextImpl$2.run(BundleContextImpl.java:1) at java.base/java.security.AccessController.doPrivileged(Unknown Source) at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:810) ... 19 more !ENTRY org.eclipse.equinox.registry 4 1 2023-04-20 10:06:57.964 !MESSAGE Unable to create the selected preference page. !STACK 0 java.lang.ClassNotFoundException: An error occurred while automatically activating bundle org.knime.python2 (642). at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:126) at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClass(ClasspathManager.java:570) at org.eclipse.osgi.internal.loader.ModuleClassLoader.findLocalClass(ModuleClassLoader.java:335) at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:397) at org.eclipse.osgi.internal.loader.sources.SingleSourcePackage.loadClass(SingleSourcePackage.java:41) at org.eclipse.osgi.internal.loader.BundleLoader.findClass0(BundleLoader.java:496) at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:416) at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:168) at java.base/java.lang.ClassLoader.loadClass(Unknown Source) at org.knime.python.Activator.createPythonCommandProcessBuilder(Activator.java:114) at org.knime.python.Activator.testPythonInstallation(Activator.java:127) at org.knime.python.Activator$1.run(Activator.java:88) at java.base/java.lang.Thread.run(Unknown Source) Caused by: org.osgi.framework.BundleException: Exception in org.knime.python2.Activator.start() of bundle org.knime.python2. at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:839) at org.eclipse.osgi.internal.framework.BundleContextImpl.start(BundleContextImpl.java:767) at org.eclipse.osgi.internal.framework.EquinoxBundle.startWorker0(EquinoxBundle.java:1032) at org.eclipse.osgi.internal.framework.EquinoxBundle$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:513) at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:117) ... 12 more Caused by: java.lang.IllegalStateException: Invalid extension point: 'org.knime.python2.serializationlibrary'. at org.knime.python2.extensions.serializationlibrary.SerializationLibraryExtensions.register(SerializationLibraryExtensions.java:116) at org.knime.python2.extensions.serializationlibrary.SerializationLibraryExtensions.getInitializedInstance(SerializationLibraryExtensions.java:98) at org.knime.python2.extensions.serializationlibrary.SerializationLibraryExtensions.init(SerializationLibraryExtensions.java:90) at org.knime.python2.Activator.testPythonInstallation(Activator.java:94) at org.knime.python2.Activator.start(Activator.java:86) at org.eclipse.osgi.internal.framework.BundleContextImpl$2.run(BundleContextImpl.java:818) at org.eclipse.osgi.internal.framework.BundleContextImpl$2.run(BundleContextImpl.java:1) at java.base/java.security.AccessController.doPrivileged(Unknown Source) at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:810) ... 19 more !ENTRY org.eclipse.equinox.registry 4 1 2023-04-20 10:12:41.179 !MESSAGE Unable to create the selected preference page. !STACK 0 java.lang.NoClassDefFoundError: org/knime/python2/prefs/AbstractPythonPreferencePage at java.base/java.lang.ClassLoader.defineClass1(Native Method) at java.base/java.lang.ClassLoader.defineClass(Unknown Source) at org.eclipse.osgi.internal.loader.ModuleClassLoader.defineClass(ModuleClassLoader.java:283) at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.defineClass(ClasspathManager.java:716) at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findClassImpl(ClasspathManager.java:639) at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClassImpl(ClasspathManager.java:607) at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClassImpl(ClasspathManager.java:587) at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClass(ClasspathManager.java:566) at org.eclipse.osgi.internal.loader.ModuleClassLoader.findLocalClass(ModuleClassLoader.java:335) at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:397) at org.eclipse.osgi.internal.loader.BundleLoader.findClass0(BundleLoader.java:500) at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:416) at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:168) at java.base/java.lang.ClassLoader.loadClass(Unknown Source) at org.eclipse.osgi.internal.framework.EquinoxBundle.loadClass(EquinoxBundle.java:622) at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:196) at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:920) at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:246) at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:63) at org.eclipse.ui.internal.WorkbenchPlugin.createExtension(WorkbenchPlugin.java:281) at org.eclipse.ui.internal.dialogs.WorkbenchPreferenceNode.createPage(WorkbenchPreferenceNode.java:52) at org.eclipse.jface.preference.PreferenceDialog.createPage(PreferenceDialog.java:1280) at org.eclipse.ui.internal.dialogs.FilteredPreferenceDialog.createPage(FilteredPreferenceDialog.java:338) at org.eclipse.jface.preference.PreferenceDialog.showPage(PreferenceDialog.java:1166) at org.eclipse.ui.internal.dialogs.FilteredPreferenceDialog.showPage(FilteredPreferenceDialog.java:630) at org.eclipse.jface.preference.PreferenceDialog$5.lambda$0(PreferenceDialog.java:660) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:74) at org.eclipse.jface.preference.PreferenceDialog$5.selectionChanged(PreferenceDialog.java:657) at org.eclipse.jface.viewers.StructuredViewer$3.run(StructuredViewer.java:821) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45) at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:174) at org.eclipse.jface.viewers.StructuredViewer.firePostSelectionChanged(StructuredViewer.java:818) at org.eclipse.jface.viewers.StructuredViewer.setSelection(StructuredViewer.java:1661) at org.eclipse.jface.viewers.TreeViewer.setSelection(TreeViewer.java:1090) at org.eclipse.jface.preference.PreferenceDialog.selectSavedItem(PreferenceDialog.java:990) at org.eclipse.ui.internal.dialogs.FilteredPreferenceDialog.selectSavedItem(FilteredPreferenceDialog.java:680) at org.eclipse.jface.preference.PreferenceDialog.lambda$0(PreferenceDialog.java:348) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:74) at org.eclipse.jface.preference.PreferenceDialog.createContents(PreferenceDialog.java:345) at org.eclipse.jface.window.Window.create(Window.java:431) at org.eclipse.jface.dialogs.Dialog.create(Dialog.java:1094) at org.eclipse.ui.internal.dialogs.WorkbenchPreferenceDialog.createDialogOn(WorkbenchPreferenceDialog.java:84) at org.eclipse.ui.dialogs.PreferencesUtil.createPreferenceDialogOn(PreferencesUtil.java:181) at org.eclipse.ui.dialogs.PreferencesUtil.createPreferenceDialogOn(PreferencesUtil.java:115) at org.eclipse.ui.internal.OpenPreferencesAction.run(OpenPreferencesAction.java:65) at org.eclipse.jface.action.Action.runWithEvent(Action.java:474) at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:580) at org.eclipse.jface.action.ActionContributionItem.lambda$4(ActionContributionItem.java:414) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4251) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1066) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4068) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3645) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1155) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1046) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:155) at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:644) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:551) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:156) at org.knime.product.rcp.KNIMEApplication.start(KNIMEApplication.java:191) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:136) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:402) 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(Unknown Source) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.base/java.lang.reflect.Method.invoke(Unknown Source) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:659) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:596) at org.eclipse.equinox.launcher.Main.run(Main.java:1467) Caused by: java.lang.ClassNotFoundException: An error occurred while automatically activating bundle org.knime.python2 (642). at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:126) at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClass(ClasspathManager.java:570) at org.eclipse.osgi.internal.loader.ModuleClassLoader.findLocalClass(ModuleClassLoader.java:335) at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:397) at org.eclipse.osgi.internal.loader.sources.SingleSourcePackage.loadClass(SingleSourcePackage.java:41) at org.eclipse.osgi.internal.loader.BundleLoader.findClass0(BundleLoader.java:496) at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:416) at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:168) at java.base/java.lang.ClassLoader.loadClass(Unknown Source) at org.knime.python.Activator.createPythonCommandProcessBuilder(Activator.java:114) at org.knime.python.Activator.testPythonInstallation(Activator.java:127) at org.knime.python.Activator$1.run(Activator.java:88) at java.base/java.lang.Thread.run(Unknown Source) Caused by: org.osgi.framework.BundleException: Exception in org.knime.python2.Activator.start() of bundle org.knime.python2. at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:839) at org.eclipse.osgi.internal.framework.BundleContextImpl.start(BundleContextImpl.java:767) at org.eclipse.osgi.internal.framework.EquinoxBundle.startWorker0(EquinoxBundle.java:1032) at org.eclipse.osgi.internal.framework.EquinoxBundle$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:513) at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:117) ... 12 more Caused by: java.lang.IllegalStateException: Invalid extension point: 'org.knime.python2.serializationlibrary'. at org.knime.python2.extensions.serializationlibrary.SerializationLibraryExtensions.register(SerializationLibraryExtensions.java:116) at org.knime.python2.extensions.serializationlibrary.SerializationLibraryExtensions.getInitializedInstance(SerializationLibraryExtensions.java:98) at org.knime.python2.extensions.serializationlibrary.SerializationLibraryExtensions.init(SerializationLibraryExtensions.java:90) at org.knime.python2.Activator.testPythonInstallation(Activator.java:94) at org.knime.python2.Activator.start(Activator.java:86) at org.eclipse.osgi.internal.framework.BundleContextImpl$2.run(BundleContextImpl.java:818) at org.eclipse.osgi.internal.framework.BundleContextImpl$2.run(BundleContextImpl.java:1) at java.base/java.security.AccessController.doPrivileged(Unknown Source) at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:810) ... 19 more !ENTRY org.eclipse.equinox.registry 4 1 2023-04-20 10:12:45.456 !MESSAGE Unable to create the selected preference page. !STACK 0 java.lang.ClassNotFoundException: An error occurred while automatically activating bundle org.knime.python2 (642). at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:126) at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClass(ClasspathManager.java:570) at org.eclipse.osgi.internal.loader.ModuleClassLoader.findLocalClass(ModuleClassLoader.java:335) at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:397) at org.eclipse.osgi.internal.loader.sources.SingleSourcePackage.loadClass(SingleSourcePackage.java:41) at org.eclipse.osgi.internal.loader.BundleLoader.findClass0(BundleLoader.java:496) at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:416) at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:168) at java.base/java.lang.ClassLoader.loadClass(Unknown Source) at org.knime.python.Activator.createPythonCommandProcessBuilder(Activator.java:114) at org.knime.python.Activator.testPythonInstallation(Activator.java:127) at org.knime.python.Activator$1.run(Activator.java:88) at java.base/java.lang.Thread.run(Unknown Source) Caused by: org.osgi.framework.BundleException: Exception in org.knime.python2.Activator.start() of bundle org.knime.python2. at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:839) at org.eclipse.osgi.internal.framework.BundleContextImpl.start(BundleContextImpl.java:767) at org.eclipse.osgi.internal.framework.EquinoxBundle.startWorker0(EquinoxBundle.java:1032) at org.eclipse.osgi.internal.framework.EquinoxBundle$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:513) at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:117) ... 12 more Caused by: java.lang.IllegalStateException: Invalid extension point: 'org.knime.python2.serializationlibrary'. at org.knime.python2.extensions.serializationlibrary.SerializationLibraryExtensions.register(SerializationLibraryExtensions.java:116) at org.knime.python2.extensions.serializationlibrary.SerializationLibraryExtensions.getInitializedInstance(SerializationLibraryExtensions.java:98) at org.knime.python2.extensions.serializationlibrary.SerializationLibraryExtensions.init(SerializationLibraryExtensions.java:90) at org.knime.python2.Activator.testPythonInstallation(Activator.java:94) at org.knime.python2.Activator.start(Activator.java:86) at org.eclipse.osgi.internal.framework.BundleContextImpl$2.run(BundleContextImpl.java:818) at org.eclipse.osgi.internal.framework.BundleContextImpl$2.run(BundleContextImpl.java:1) at java.base/java.security.AccessController.doPrivileged(Unknown Source) at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:810) ... 19 more !ENTRY org.eclipse.equinox.registry 4 1 2023-04-20 10:12:58.921 !MESSAGE Unable to create the selected preference page. !STACK 0 java.lang.NoClassDefFoundError: org/knime/python2/prefs/AbstractPythonPreferencePage at java.base/java.lang.ClassLoader.defineClass1(Native Method) at java.base/java.lang.ClassLoader.defineClass(Unknown Source) at org.eclipse.osgi.internal.loader.ModuleClassLoader.defineClass(ModuleClassLoader.java:283) at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.defineClass(ClasspathManager.java:716) at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findClassImpl(ClasspathManager.java:639) at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClassImpl(ClasspathManager.java:607) at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClassImpl(ClasspathManager.java:587) at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClass(ClasspathManager.java:566) at org.eclipse.osgi.internal.loader.ModuleClassLoader.findLocalClass(ModuleClassLoader.java:335) at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:397) at org.eclipse.osgi.internal.loader.BundleLoader.findClass0(BundleLoader.java:500) at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:416) at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:168) at java.base/java.lang.ClassLoader.loadClass(Unknown Source) at org.eclipse.osgi.internal.framework.EquinoxBundle.loadClass(EquinoxBundle.java:622) at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:196) at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:920) at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:246) at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:63) at org.eclipse.ui.internal.WorkbenchPlugin.createExtension(WorkbenchPlugin.java:281) at org.eclipse.ui.internal.dialogs.WorkbenchPreferenceNode.createPage(WorkbenchPreferenceNode.java:52) at org.eclipse.jface.preference.PreferenceDialog.createPage(PreferenceDialog.java:1280) at org.eclipse.ui.internal.dialogs.FilteredPreferenceDialog.createPage(FilteredPreferenceDialog.java:338) at org.eclipse.jface.preference.PreferenceDialog.showPage(PreferenceDialog.java:1166) at org.eclipse.ui.internal.dialogs.FilteredPreferenceDialog.showPage(FilteredPreferenceDialog.java:630) at org.eclipse.jface.preference.PreferenceDialog$5.lambda$0(PreferenceDialog.java:660) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:74) at org.eclipse.jface.preference.PreferenceDialog$5.selectionChanged(PreferenceDialog.java:657) at org.eclipse.jface.viewers.StructuredViewer$3.run(StructuredViewer.java:821) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45) at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:174) at org.eclipse.jface.viewers.StructuredViewer.firePostSelectionChanged(StructuredViewer.java:818) at org.eclipse.jface.viewers.StructuredViewer.setSelection(StructuredViewer.java:1661) at org.eclipse.jface.viewers.TreeViewer.setSelection(TreeViewer.java:1090) at org.eclipse.jface.preference.PreferenceDialog.selectSavedItem(PreferenceDialog.java:990) at org.eclipse.ui.internal.dialogs.FilteredPreferenceDialog.selectSavedItem(FilteredPreferenceDialog.java:680) at org.eclipse.jface.preference.PreferenceDialog.lambda$0(PreferenceDialog.java:348) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:74) at org.eclipse.jface.preference.PreferenceDialog.createContents(PreferenceDialog.java:345) at org.eclipse.jface.window.Window.create(Window.java:431) at org.eclipse.jface.dialogs.Dialog.create(Dialog.java:1094) at org.eclipse.ui.internal.dialogs.WorkbenchPreferenceDialog.createDialogOn(WorkbenchPreferenceDialog.java:84) at org.eclipse.ui.dialogs.PreferencesUtil.createPreferenceDialogOn(PreferencesUtil.java:181) at org.eclipse.ui.dialogs.PreferencesUtil.createPreferenceDialogOn(PreferencesUtil.java:115) at org.eclipse.ui.internal.OpenPreferencesAction.run(OpenPreferencesAction.java:65) at org.eclipse.jface.action.Action.runWithEvent(Action.java:474) at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:580) at org.eclipse.jface.action.ActionContributionItem.lambda$4(ActionContributionItem.java:414) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4251) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1066) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4068) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3645) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1155) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1046) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:155) at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:644) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:551) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:156) at org.knime.product.rcp.KNIMEApplication.start(KNIMEApplication.java:191) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:136) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:402) 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(Unknown Source) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.base/java.lang.reflect.Method.invoke(Unknown Source) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:659) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:596) at org.eclipse.equinox.launcher.Main.run(Main.java:1467) Caused by: java.lang.ClassNotFoundException: An error occurred while automatically activating bundle org.knime.python2 (642). at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:126) at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClass(ClasspathManager.java:570) at org.eclipse.osgi.internal.loader.ModuleClassLoader.findLocalClass(ModuleClassLoader.java:335) at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:397) at org.eclipse.osgi.internal.loader.sources.SingleSourcePackage.loadClass(SingleSourcePackage.java:41) at org.eclipse.osgi.internal.loader.BundleLoader.findClass0(BundleLoader.java:496) at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:416) at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:168) at java.base/java.lang.ClassLoader.loadClass(Unknown Source) at org.knime.python.Activator.createPythonCommandProcessBuilder(Activator.java:114) at org.knime.python.Activator.testPythonInstallation(Activator.java:127) at org.knime.python.Activator$1.run(Activator.java:88) at java.base/java.lang.Thread.run(Unknown Source) Caused by: org.osgi.framework.BundleException: Exception in org.knime.python2.Activator.start() of bundle org.knime.python2. at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:839) at org.eclipse.osgi.internal.framework.BundleContextImpl.start(BundleContextImpl.java:767) at org.eclipse.osgi.internal.framework.EquinoxBundle.startWorker0(EquinoxBundle.java:1032) at org.eclipse.osgi.internal.framework.EquinoxBundle$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:513) at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:117) ... 12 more Caused by: java.lang.IllegalStateException: Invalid extension point: 'org.knime.python2.serializationlibrary'. at org.knime.python2.extensions.serializationlibrary.SerializationLibraryExtensions.register(SerializationLibraryExtensions.java:116) at org.knime.python2.extensions.serializationlibrary.SerializationLibraryExtensions.getInitializedInstance(SerializationLibraryExtensions.java:98) at org.knime.python2.extensions.serializationlibrary.SerializationLibraryExtensions.init(SerializationLibraryExtensions.java:90) at org.knime.python2.Activator.testPythonInstallation(Activator.java:94) at org.knime.python2.Activator.start(Activator.java:86) at org.eclipse.osgi.internal.framework.BundleContextImpl$2.run(BundleContextImpl.java:818) at org.eclipse.osgi.internal.framework.BundleContextImpl$2.run(BundleContextImpl.java:1) at java.base/java.security.AccessController.doPrivileged(Unknown Source) at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:810) ... 19 more !ENTRY org.eclipse.equinox.registry 4 1 2023-04-20 10:13:01.338 !MESSAGE Unable to create the selected preference page. !STACK 0 java.lang.ClassNotFoundException: An error occurred while automatically activating bundle org.knime.python2 (642). at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:126) at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClass(ClasspathManager.java:570) at org.eclipse.osgi.internal.loader.ModuleClassLoader.findLocalClass(ModuleClassLoader.java:335) at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:397) at org.eclipse.osgi.internal.loader.sources.SingleSourcePackage.loadClass(SingleSourcePackage.java:41) at org.eclipse.osgi.internal.loader.BundleLoader.findClass0(BundleLoader.java:496) at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:416) at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:168) at java.base/java.lang.ClassLoader.loadClass(Unknown Source) at org.knime.python.Activator.createPythonCommandProcessBuilder(Activator.java:114) at org.knime.python.Activator.testPythonInstallation(Activator.java:127) at org.knime.python.Activator$1.run(Activator.java:88) at java.base/java.lang.Thread.run(Unknown Source) Caused by: org.osgi.framework.BundleException: Exception in org.knime.python2.Activator.start() of bundle org.knime.python2. at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:839) at org.eclipse.osgi.internal.framework.BundleContextImpl.start(BundleContextImpl.java:767) at org.eclipse.osgi.internal.framework.EquinoxBundle.startWorker0(EquinoxBundle.java:1032) at org.eclipse.osgi.internal.framework.EquinoxBundle$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:513) at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:117) ... 12 more Caused by: java.lang.IllegalStateException: Invalid extension point: 'org.knime.python2.serializationlibrary'. at org.knime.python2.extensions.serializationlibrary.SerializationLibraryExtensions.register(SerializationLibraryExtensions.java:116) at org.knime.python2.extensions.serializationlibrary.SerializationLibraryExtensions.getInitializedInstance(SerializationLibraryExtensions.java:98) at org.knime.python2.extensions.serializationlibrary.SerializationLibraryExtensions.init(SerializationLibraryExtensions.java:90) at org.knime.python2.Activator.testPythonInstallation(Activator.java:94) at org.knime.python2.Activator.start(Activator.java:86) at org.eclipse.osgi.internal.framework.BundleContextImpl$2.run(BundleContextImpl.java:818) at org.eclipse.osgi.internal.framework.BundleContextImpl$2.run(BundleContextImpl.java:1) at java.base/java.security.AccessController.doPrivileged(Unknown Source) at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:810) ... 19 more