Force.com IDE in brand new eclipse fails to Add/Remove Metadata Components (on specific Orgs)

OUTLINE

When I want to select the Metadata types for the project, I only get the error:

Unable to open custom component selection dialog. Reason: An unexpected error has occurred.

I don't know if it matters, but I have multiple JDKs and JREs installed.

DETAILS

Just installed eclipse 4.6.2 (fresh, clean, empty) just for the force.com plugin, nothing else:

Installed fresh force.com plugin:

Creating new force.com project with all setting defaul: it works, project there and metadata, too:

Now if I rightclick the project > Force.com > Add/Remove Metadata Components... and in the next Popup I click the button [Add/Remove] like this:

The progressbar advances until nearly it's end and I got these Error popups:

Tried this on a different eclipse version 4.5 and got exactly the same issue. I have multiple JDK, JRE installed.

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Error Log 1

eclipse.buildId=4.6.2.M20161124-1400 java.version=1.8.0_91 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 com.salesforce.ide.core Error Sat Jan 14 16:44:59 CET 2017 ERROR [2017-01-14 16:44:59,571] (ProjectProjectContentComposite.java:widgetDefaultSelected:296) - Unable to open custom component selection dialog java.lang.NullPointerException at com.salesforce.ide.core.internal.utils.PackageManifestDocumentUtils.getPackageNode(PackageManifestDocumentUtils.java:157) at com.salesforce.ide.ui.packagemanifest.PackageManifestController.getComponentTypesFromCache(PackageManifestController.java:1002) at com.salesforce.ide.ui.packagemanifest.PackageManifestController.createModel(PackageManifestController.java:827) at com.salesforce.ide.ui.packagemanifest.PackageManifestController.updateManifest(PackageManifestController.java:174) at com.salesforce.ide.ui.packagemanifest.PackageManifestController.getEnabledCompTypeTreeNodes(PackageManifestController.java:439) at com.salesforce.ide.ui.packagemanifest.PackageManifestTree$ManifestContentProvider.getElements(PackageManifestTree.java:690) at org.eclipse.jface.viewers.StructuredViewer.getRawChildren(StructuredViewer.java:1001) at org.eclipse.jface.viewers.ColumnViewer.getRawChildren(ColumnViewer.java:701) at org.eclipse.jface.viewers.AbstractTreeViewer.getRawChildren(AbstractTreeViewer.java:1349) at org.eclipse.jface.viewers.TreeViewer.getRawChildren(TreeViewer.java:341) at org.eclipse.jface.viewers.StructuredViewer.getFilteredChildren(StructuredViewer.java:907) at org.eclipse.jface.viewers.AbstractTreeViewer.getSortedChildren(AbstractTreeViewer.java:621) at org.eclipse.jface.viewers.AbstractTreeViewer.lambda$0(AbstractTreeViewer.java:817) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) at org.eclipse.jface.viewers.AbstractTreeViewer.createChildren(AbstractTreeViewer.java:795) at org.eclipse.jface.viewers.TreeViewer.createChildren(TreeViewer.java:596) at org.eclipse.jface.viewers.AbstractTreeViewer.createChildren(AbstractTreeViewer.java:766) at org.eclipse.jface.viewers.AbstractTreeViewer.internalInitializeTree(AbstractTreeViewer.java:1538) at org.eclipse.jface.viewers.TreeViewer.internalInitializeTree(TreeViewer.java:772) at org.eclipse.jface.viewers.AbstractTreeViewer.lambda$1(AbstractTreeViewer.java:1523) at org.eclipse.jface.viewers.StructuredViewer.preservingSelection(StructuredViewer.java:1458) at org.eclipse.jface.viewers.TreeViewer.preservingSelection(TreeViewer.java:354) at org.eclipse.jface.viewers.StructuredViewer.preservingSelection(StructuredViewer.java:1419) at org.eclipse.jface.viewers.CheckboxTreeViewer.preservingSelection(CheckboxTreeViewer.java:409) at com.salesforce.ide.ui.packagemanifest.PackageManifestTree$PackageManifestTreeViewer.preservingSelection(PackageManifestTree.java:417) at org.eclipse.jface.viewers.AbstractTreeViewer.inputChanged(AbstractTreeViewer.java:1517) at org.eclipse.jface.viewers.ContentViewer.setInput(ContentViewer.java:286) at org.eclipse.jface.viewers.StructuredViewer.setInput(StructuredViewer.java:1696) at com.salesforce.ide.ui.packagemanifest.PackageManifestTree.updateTree(PackageManifestTree.java:1693) at com.salesforce.ide.ui.wizards.project.ProjectCustomComponentsComposite.initialize(ProjectCustomComponentsComposite.java:116) at com.salesforce.ide.ui.wizards.project.ProjectCustomComponentsComposite.<init>(ProjectCustomComponentsComposite.java:72) at com.salesforce.ide.ui.wizards.project.ProjectCustomComponentsDialog.createDialogArea(ProjectCustomComponentsDialog.java:59) at org.eclipse.jface.dialogs.Dialog.createContents(Dialog.java:767) at org.eclipse.jface.window.Window.create(Window.java:426) at org.eclipse.jface.dialogs.Dialog.create(Dialog.java:1095) at com.salesforce.ide.ui.wizards.project.ProjectCustomComponentsDialog.create(ProjectCustomComponentsDialog.java:156) at org.eclipse.jface.window.Window.open(Window.java:783) at com.salesforce.ide.ui.wizards.project.ProjectProjectContentComposite$8.widgetDefaultSelected(ProjectProjectContentComposite.java:294) at com.salesforce.ide.ui.wizards.project.ProjectProjectContentComposite$8.widgetSelected(ProjectProjectContentComposite.java:309) at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:249) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4418) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1079) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4236) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3824) at org.eclipse.jface.window.Window.runEventLoop(Window.java:818) at org.eclipse.jface.window.Window.open(Window.java:794) at com.salesforce.ide.ui.handlers.OpenProjectContentPropertiesHandler.execute(OpenProjectContentPropertiesHandler.java:31) at org.eclipse.ui.internal.handlers.HandlerProxy.execute(HandlerProxy.java:295) at org.eclipse.ui.internal.handlers.E4HandlerProxy.execute(E4HandlerProxy.java:90) at sun.reflect.GeneratedMethodAccessor195.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:55) at org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:282) at org.eclipse.e4.core.internal.di.InjectorImpl.invoke(InjectorImpl.java:264) at org.eclipse.e4.core.contexts.ContextInjectionFactory.invoke(ContextInjectionFactory.java:132) at org.eclipse.e4.core.commands.internal.HandlerServiceHandler.execute(HandlerServiceHandler.java:152) at org.eclipse.core.commands.Command.executeWithChecks(Command.java:494) at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:488) at org.eclipse.e4.core.commands.internal.HandlerServiceImpl.executeHandler(HandlerServiceImpl.java:210) at org.eclipse.e4.ui.workbench.renderers.swt.HandledContributionItem.executeItem(HandledContributionItem.java:433) at org.eclipse.e4.ui.workbench.renderers.swt.AbstractContributionItem.handleWidgetSelection(AbstractContributionItem.java:454) at org.eclipse.e4.ui.workbench.renderers.swt.AbstractContributionItem$3.handleEvent(AbstractContributionItem.java:482) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4418) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1079) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4236) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3824) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1121) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1022) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:150) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:693) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:610) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:138) 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(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) 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) 

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Error Log 2

eclipse.buildId=4.6.2.M20161124-1400 java.version=1.8.0_91 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 com.salesforce.ide.core Error Sat Jan 14 16:44:57 CET 2017 ERROR [2017-01-14 16:44:57,117] (PackageManifestController.java:loadAll:502) - Unable to refresh file metadata java.lang.NullPointerException at java.lang.String$CaseInsensitiveComparator.compare(String.java:1192) at java.lang.String$CaseInsensitiveComparator.compare(String.java:1186) at com.salesforce.ide.core.remote.metadata.FileMetadataExt$1.compare(FileMetadataExt.java:37) at com.salesforce.ide.core.remote.metadata.FileMetadataExt$1.compare(FileMetadataExt.java:1) at java.util.TimSort.binarySort(TimSort.java:296) at java.util.TimSort.sort(TimSort.java:239) at java.util.Arrays.sort(Arrays.java:1438) at com.salesforce.ide.core.remote.metadata.FileMetadataExt.sort(FileMetadataExt.java:418) at com.salesforce.ide.core.remote.metadata.FileMetadataExt.getFilePropertiesMap(FileMetadataExt.java:322) at com.salesforce.ide.ui.packagemanifest.PackageManifestController$1.run(PackageManifestController.java:298) at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:437) at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:353) at org.eclipse.jface.dialogs.ProgressMonitorDialog.run(ProgressMonitorDialog.java:481) at org.eclipse.ui.internal.progress.ProgressMonitorJobsDialog.run(ProgressMonitorJobsDialog.java:242) at org.eclipse.ui.internal.progress.ProgressManager.run(ProgressManager.java:1074) at com.salesforce.ide.ui.packagemanifest.PackageManifestController.updateCache(PackageManifestController.java:295) at com.salesforce.ide.ui.packagemanifest.PackageManifestController.loadAll(PackageManifestController.java:486) at com.salesforce.ide.ui.packagemanifest.PackageManifestController.updateManifest(PackageManifestController.java:173) at com.salesforce.ide.ui.packagemanifest.PackageManifestController.getEnabledCompTypeTreeNodes(PackageManifestController.java:439) at com.salesforce.ide.ui.packagemanifest.PackageManifestTree$ManifestContentProvider.getElements(PackageManifestTree.java:690) at org.eclipse.jface.viewers.StructuredViewer.getRawChildren(StructuredViewer.java:1001) at org.eclipse.jface.viewers.ColumnViewer.getRawChildren(ColumnViewer.java:701) at org.eclipse.jface.viewers.AbstractTreeViewer.getRawChildren(AbstractTreeViewer.java:1349) at org.eclipse.jface.viewers.TreeViewer.getRawChildren(TreeViewer.java:341) at org.eclipse.jface.viewers.StructuredViewer.getFilteredChildren(StructuredViewer.java:907) at org.eclipse.jface.viewers.AbstractTreeViewer.getSortedChildren(AbstractTreeViewer.java:621) at org.eclipse.jface.viewers.AbstractTreeViewer.lambda$0(AbstractTreeViewer.java:817) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) at org.eclipse.jface.viewers.AbstractTreeViewer.createChildren(AbstractTreeViewer.java:795) at org.eclipse.jface.viewers.TreeViewer.createChildren(TreeViewer.java:596) at org.eclipse.jface.viewers.AbstractTreeViewer.createChildren(AbstractTreeViewer.java:766) at org.eclipse.jface.viewers.AbstractTreeViewer.internalInitializeTree(AbstractTreeViewer.java:1538) at org.eclipse.jface.viewers.TreeViewer.internalInitializeTree(TreeViewer.java:772) at org.eclipse.jface.viewers.AbstractTreeViewer.lambda$1(AbstractTreeViewer.java:1523) at org.eclipse.jface.viewers.StructuredViewer.preservingSelection(StructuredViewer.java:1458) at org.eclipse.jface.viewers.TreeViewer.preservingSelection(TreeViewer.java:354) at org.eclipse.jface.viewers.StructuredViewer.preservingSelection(StructuredViewer.java:1419) at org.eclipse.jface.viewers.CheckboxTreeViewer.preservingSelection(CheckboxTreeViewer.java:409) at com.salesforce.ide.ui.packagemanifest.PackageManifestTree$PackageManifestTreeViewer.preservingSelection(PackageManifestTree.java:417) at org.eclipse.jface.viewers.AbstractTreeViewer.inputChanged(AbstractTreeViewer.java:1517) at org.eclipse.jface.viewers.ContentViewer.setInput(ContentViewer.java:286) at org.eclipse.jface.viewers.StructuredViewer.setInput(StructuredViewer.java:1696) at com.salesforce.ide.ui.packagemanifest.PackageManifestTree.updateTree(PackageManifestTree.java:1693) at com.salesforce.ide.ui.wizards.project.ProjectCustomComponentsComposite.initialize(ProjectCustomComponentsComposite.java:116) at com.salesforce.ide.ui.wizards.project.ProjectCustomComponentsComposite.<init>(ProjectCustomComponentsComposite.java:72) at com.salesforce.ide.ui.wizards.project.ProjectCustomComponentsDialog.createDialogArea(ProjectCustomComponentsDialog.java:59) at org.eclipse.jface.dialogs.Dialog.createContents(Dialog.java:767) at org.eclipse.jface.window.Window.create(Window.java:426) at org.eclipse.jface.dialogs.Dialog.create(Dialog.java:1095) at com.salesforce.ide.ui.wizards.project.ProjectCustomComponentsDialog.create(ProjectCustomComponentsDialog.java:156) at org.eclipse.jface.window.Window.open(Window.java:783) at com.salesforce.ide.ui.wizards.project.ProjectProjectContentComposite$8.widgetDefaultSelected(ProjectProjectContentComposite.java:294) at com.salesforce.ide.ui.wizards.project.ProjectProjectContentComposite$8.widgetSelected(ProjectProjectContentComposite.java:309) at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:249) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4418) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1079) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4236) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3824) at org.eclipse.jface.window.Window.runEventLoop(Window.java:818) at org.eclipse.jface.window.Window.open(Window.java:794) at com.salesforce.ide.ui.handlers.OpenProjectContentPropertiesHandler.execute(OpenProjectContentPropertiesHandler.java:31) at org.eclipse.ui.internal.handlers.HandlerProxy.execute(HandlerProxy.java:295) at org.eclipse.ui.internal.handlers.E4HandlerProxy.execute(E4HandlerProxy.java:90) at sun.reflect.GeneratedMethodAccessor195.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:55) at org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:282) at org.eclipse.e4.core.internal.di.InjectorImpl.invoke(InjectorImpl.java:264) at org.eclipse.e4.core.contexts.ContextInjectionFactory.invoke(ContextInjectionFactory.java:132) at org.eclipse.e4.core.commands.internal.HandlerServiceHandler.execute(HandlerServiceHandler.java:152) at org.eclipse.core.commands.Command.executeWithChecks(Command.java:494) at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:488) at org.eclipse.e4.core.commands.internal.HandlerServiceImpl.executeHandler(HandlerServiceImpl.java:210) at org.eclipse.e4.ui.workbench.renderers.swt.HandledContributionItem.executeItem(HandledContributionItem.java:433) at org.eclipse.e4.ui.workbench.renderers.swt.AbstractContributionItem.handleWidgetSelection(AbstractContributionItem.java:454) at org.eclipse.e4.ui.workbench.renderers.swt.AbstractContributionItem$3.handleEvent(AbstractContributionItem.java:482) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4418) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1079) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4236) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3824) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1121) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1022) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:150) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:693) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:610) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:138) 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(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) 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) 

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Warning Log (directly before the error)

 eclipse.buildId=4.6.2.M20161124-1400 java.version=1.8.0_91 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 com.salesforce.ide.core Warning Sat Jan 14 17:13:57 CET 2017 WARN [2017-01-14 17:13:57,929] (Utils.java:loadDocument:807) - Unable to load document: D:\Pool\eclipse-projects\.metadata\.plugins\org.eclipse.core.resources\.projects\[email protected]\com.salesforce.ide.core\packageCache.xml (The system cannot find the file specified)