Develop Reference

Eclipse NWDS doesn't start

I have a problem with my Eclipse NWDS that doesn't start with the error below. On my laptop I have installed jdk 1.8.0_301 and also jre 1.8.0_301 on Windows 10
Have you any suggestions to solve this problem?
Thanks in advance
!SESSION 2021-10-27 10:30:38.949 -----------------------------------------------
eclipse.buildId=#qualifier#
java.version=1.8.0_301
java.vendor=Oracle Corporation
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=en
Command-line arguments: -os win32 -ws win32 -arch x86
!ENTRY org.eclipse.ui 2 0 2021-10-27 10:30:49.648
!MESSAGE Warnings while parsing the key bindings from the 'org.eclipse.ui.commands' extension point
!SUBENTRY 1 org.eclipse.ui 2 0 2021-10-27 10:30:49.648
!MESSAGE Cannot bind to an undefined command: plug-in='com.sap.ide.esr.tools.core.ui', id='com.sap.ide.esr.tools.ui.runchecks'
!ENTRY org.eclipse.osgi 4 0 2021-10-27 10:30:49.742
!MESSAGE Application error
!STACK 1
java.lang.ExceptionInInitializerError
at com.ibm.icu.text.Collator.<clinit>(Collator.java:946)
at org.eclipse.ui.internal.ide.application.IDEWorkbenchAdvisor.initialize(IDEWorkbenchAdvisor.java:206)
at org.eclipse.ui.application.WorkbenchAdvisor.internalBasicInitialize(WorkbenchAdvisor.java:188)
at org.eclipse.ui.internal.Workbench$26.runWithException(Workbench.java:1351)
at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run(StartupThreading.java:31)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:134)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3885)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3506)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2316)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2221)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:500)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:493)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:194)
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:368)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
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:559)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:514)
at org.eclipse.equinox.launcher.Main.run(Main.java:1311)
Caused by: java.lang.IllegalArgumentException: Invalid version number: Version number may be negative or greater than 255
at com.ibm.icu.util.VersionInfo.getInstance(VersionInfo.java:191)
at com.ibm.icu.impl.ICUDebug.getInstanceLenient(ICUDebug.java:65)
at com.ibm.icu.impl.ICUDebug.<clinit>(ICUDebug.java:69)
... 28 more

Why Eclipse Java Editor doesn't work?

In my Eclipse, all the java files will be rightly showed in package explore,but when i try to open a java file in Java Editor, I will see nothing but this.
And it is so strange that i can do format code or show outline . I try to open this file with Text editor, and it works well.
I try to find something useful in eclipse log file.After eclipse start up, the log file contains no errors and exceptions.After I open two java file and click the outlines, eclipse will collect an exception.There are two snippets in log file:
!ENTRY org.eclipse.jface 4 2 2016-08-20 19:03:42.792
!MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.jface".
!STACK 0
java.lang.ArrayIndexOutOfBoundsException: -1
at org.eclipse.swt.custom.StyledTextRenderer.calculateClientArea(StyledTextRenderer.java:230)
at org.eclipse.swt.custom.StyledText.resetCache(StyledText.java:7955)
at org.eclipse.swt.custom.StyledText.redraw(StyledText.java:7516)
at org.eclipse.jface.text.CursorLinePainter.drawHighlightLine(CursorLinePainter.java:179)
at org.eclipse.jface.text.CursorLinePainter.paint(CursorLinePainter.java:240)
at org.eclipse.jface.text.PaintManager.paint(PaintManager.java:299)
at org.eclipse.jface.text.PaintManager.selectionChanged(PaintManager.java:338)
at org.eclipse.jface.viewers.Viewer$2.run(Viewer.java:163)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:50)
at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:173)
at org.eclipse.jface.viewers.Viewer.fireSelectionChanged(Viewer.java:160)
at org.eclipse.jface.text.TextViewer.fireSelectionChanged(TextViewer.java:2734)
at org.eclipse.jface.text.TextViewer.selectionChanged(TextViewer.java:2713)
at org.eclipse.jface.text.TextViewer.setSelectedRange(TextViewer.java:2398)
at org.eclipse.jdt.internal.ui.javaeditor.JavaEditor.setSelection(JavaEditor.java:2367)
at org.eclipse.jdt.internal.ui.javaeditor.JavaEditor.doSelectionChanged(JavaEditor.java:2435)
at org.eclipse.jdt.internal.ui.javaeditor.JavaOutlinePage$3.open(JavaOutlinePage.java:1022)
at org.eclipse.ui.OpenAndLinkWithEditorHelper$InternalListener.open(OpenAndLinkWithEditorHelper.java:48)
at org.eclipse.jface.viewers.StructuredViewer$2.run(StructuredViewer.java:854)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:50)
at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:173)
at org.eclipse.jface.viewers.StructuredViewer.fireOpen(StructuredViewer.java:851)
at org.eclipse.jface.viewers.StructuredViewer.handleOpen(StructuredViewer.java:1168)
at org.eclipse.jface.viewers.StructuredViewer$6.handleOpen(StructuredViewer.java:1275)
at org.eclipse.jface.util.OpenStrategy.fireOpenEvent(OpenStrategy.java:278)
at org.eclipse.jface.util.OpenStrategy.access$2(OpenStrategy.java:272)
at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:313)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4362)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1113)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4180)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3769)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1127)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1018)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:156)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:694)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:606)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
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:380)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235)
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:497)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:669)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:608)
at org.eclipse.equinox.launcher.Main.run(Main.java:1515)
!ENTRY org.eclipse.ui 4 0 2016-08-20 19:03:43.007
!MESSAGE Unhandled event loop exception
!STACK 0
org.eclipse.swt.SWTException: Failed to execute runnable (java.lang.IllegalArgumentException: Index out of bounds)
at org.eclipse.swt.SWT.error(SWT.java:4491)
at org.eclipse.swt.SWT.error(SWT.java:4406)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:138)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4155)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3772)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1127)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1018)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:156)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:694)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:606)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
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:380)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235)
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:497)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:669)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:608)
at org.eclipse.equinox.launcher.Main.run(Main.java:1515)
Caused by: java.lang.IllegalArgumentException: Index out of bounds
at org.eclipse.swt.SWT.error(SWT.java:4472)
at org.eclipse.swt.SWT.error(SWT.java:4406)
at org.eclipse.swt.SWT.error(SWT.java:4377)
at org.eclipse.swt.custom.StyledText.getOffsetAtLine(StyledText.java:4403)
at org.eclipse.jface.text.JFaceTextUtil.getPartialTopIndex(JFaceTextUtil.java:103)
at org.eclipse.jface.text.JFaceTextUtil.getPartialTopIndex(JFaceTextUtil.java:151)
at org.eclipse.jface.text.source.AnnotationRulerColumn.getInclusiveTopIndexStartOffset(AnnotationRulerColumn.java:556)
at org.eclipse.jface.text.source.AnnotationRulerColumn.doPaint1(AnnotationRulerColumn.java:707)
at org.eclipse.jface.text.source.AnnotationRulerColumn.doubleBufferPaint(AnnotationRulerColumn.java:532)
at org.eclipse.jface.text.source.AnnotationRulerColumn.redraw(AnnotationRulerColumn.java:815)
at org.eclipse.jface.text.source.AnnotationRulerColumn$6.run(AnnotationRulerColumn.java:798)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135)
... 23 more
How can I fix this?

Can't use Tomcat server in Eclipse

I have installed Tomcat v8.0.35 and I have configured it following these steps (here). I have checked it and it's working fine: I went to localhost:(myport) and got this
Now I installed Eclipse Mars2 Enterprise Edition, New->Dynamic Web Project, I had no target runtime so New Runtime->Tomcat v8->gave the installation folder->finish. Now the project has been created but when I click the server tab, it doesnt show tomcat. I get this message "No servers available. Click this link to create a server" but I can't create a server using tomcat8.
The server is on when I create my eclipse project
I don't know exactly how to show the file so I will just ctrl+c, ctrl+v (sorry in advance).
So the warnings and errors from the .log file looks like this:
!ENTRY org.eclipse.egit.ui 2 0 2016-05-18 13:50:56.781
!MESSAGE Warning: The environment variable HOME is not set. The following directory will be used to store the Git
user global configuration and to define the default location to store repositories: 'C:\Users\Bogdan'. If this is
not correct please set the HOME environment variable and restart Eclipse. Otherwise Git for Windows and
EGit might behave differently since they see different configuration options.
This warning can be switched off on the Team > Git > Confirmations and Warnings preference page.
!ENTRY org.eclipse.wst.server.discovery 1 0 2016-05-18 13:53:41.383
!MESSAGE cacheFile=file:/E:/EclipseMars/eclipse/configuration/org.eclipse.wst.server.discovery/serverAdapterSitesDetails.xml
!ENTRY org.eclipse.wst.server.discovery 1 0 2016-05-18 13:53:41.406
!MESSAGE cacheFile=file:/E:/EclipseMars/eclipse/configuration/org.eclipse.wst.server.discovery/serverAdapterSitesDetails.xml
!ENTRY org.eclipse.equinox.p2.publisher.eclipse 4 0 2016-05-18 13:53:48.551
!MESSAGE Invalid site reference %updateSiteURL in feature com.pramati.eclipse.feature.
!ENTRY org.eclipse.equinox.p2.publisher.eclipse 4 0 2016-05-18 13:53:48.572
!MESSAGE Invalid site reference %updateSiteURL in feature com.pramati.eclipse.feature.
!ENTRY org.eclipse.equinox.p2.publisher.eclipse 4 0 2016-05-18 13:53:48.576
!MESSAGE Invalid site reference %updateSiteURL in feature com.pramati.eclipse.feature.
!ENTRY org.eclipse.equinox.p2.transport.ecf 2 0 2016-05-18 13:54:09.340
!MESSAGE Connection to http://downloads.sourceforge.net/project/sapnweclipse/updates/features/com.sap.netweaver.porta.ide.eclipse.feature_0.4.1.200907211842.jar failed on Connection timed out: connect. Retry attempt 0 started
!STACK 0
java.net.ConnectException: Connection timed out: connect
at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(Unknown Source)
at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source)
at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source)
at java.net.AbstractPlainSocketImpl.connect(Unknown Source)
at java.net.PlainSocketImpl.connect(Unknown Source)
at java.net.SocksSocketImpl.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at org.eclipse.ecf.internal.provider.filetransfer.httpclient4.ECFHttpClientProtocolSocketFactory.connectSocket(ECFHttpClientProtocolSocketFactory.java:86)
at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:177)
at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:144)
at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:131)
at org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:611)
at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:446)
at org.apache.http.impl.client.AbstractHttpClient.doExecute(AbstractHttpClient.java:863)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82)
at org.eclipse.ecf.provider.filetransfer.httpclient4.HttpClientRetrieveFileTransfer.performConnect(HttpClientRetrieveFileTransfer.java:1077)
at org.eclipse.ecf.provider.filetransfer.httpclient4.HttpClientRetrieveFileTransfer.access$0(HttpClientRetrieveFileTransfer.java:1068)
at org.eclipse.ecf.provider.filetransfer.httpclient4.HttpClientRetrieveFileTransfer$1.performFileTransfer(HttpClientRetrieveFileTransfer.java:1064)
at org.eclipse.ecf.filetransfer.FileTransferJob.run(FileTransferJob.java:73)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
!ENTRY org.eclipse.equinox.p2.transport.ecf 2 0 2016-05-18 13:54:46.964
!MESSAGE Connection to http://downloads.sourceforge.net/project/sapnweclipse/updates/features/com.sap.netweaver.porta.ide.eclipse.feature_0.6.3.201004231243.jar failed on Connection timed out: connect. Retry attempt 0 started
!STACK 0
java.net.ConnectException: Connection timed out: connect
at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(Unknown Source)
at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source)
at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source)
at java.net.AbstractPlainSocketImpl.connect(Unknown Source)
at java.net.PlainSocketImpl.connect(Unknown Source)
at java.net.SocksSocketImpl.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at org.eclipse.ecf.internal.provider.filetransfer.httpclient4.ECFHttpClientProtocolSocketFactory.connectSocket(ECFHttpClientProtocolSocketFactory.java:86)
at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:177)
at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:144)
at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:131)
at org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:611)
at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:446)
at org.apache.http.impl.client.AbstractHttpClient.doExecute(AbstractHttpClient.java:863)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82)
at org.eclipse.ecf.provider.filetransfer.httpclient4.HttpClientRetrieveFileTransfer.performConnect(HttpClientRetrieveFileTransfer.java:1077)
at org.eclipse.ecf.provider.filetransfer.httpclient4.HttpClientRetrieveFileTransfer.access$0(HttpClientRetrieveFileTransfer.java:1068)
at org.eclipse.ecf.provider.filetransfer.httpclient4.HttpClientRetrieveFileTransfer$1.performFileTransfer(HttpClientRetrieveFileTransfer.java:1064)
at org.eclipse.ecf.filetransfer.FileTransferJob.run(FileTransferJob.java:73)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
!ENTRY org.eclipse.wst.server.discovery 1 0 2016-05-18 13:55:02.643
!MESSAGE cacheFile=file:/E:/EclipseMars/eclipse/configuration/org.eclipse.wst.server.discovery/serverAdapterSitesDetails.xml
!ENTRY org.eclipse.wst.server.discovery 1 0 2016-05-18 13:55:16.978
!MESSAGE cacheFile=file:/E:/EclipseMars/eclipse/configuration/org.eclipse.wst.server.discovery/serverAdapterSitesDetails.xml
!ENTRY org.eclipse.wst.server.discovery 1 0 2016-05-18 13:59:26.787
!MESSAGE cacheFile=file:/E:/EclipseMars/eclipse/configuration/org.eclipse.wst.server.discovery/serverAdapterSitesDetails.xml
!ENTRY org.eclipse.jface 4 0 2016-05-18 14:02:58.149
!MESSAGE Unhandled event loop exception during blocked modal context.
!STACK 0
org.eclipse.swt.SWTException: Failed to execute runnable (org.eclipse.swt.SWTException: Widget is disposed)
at org.eclipse.swt.SWT.error(SWT.java:4491)
at org.eclipse.swt.SWT.error(SWT.java:4406)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:138)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4155)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3772)
at org.eclipse.jface.operation.ModalContext$ModalContextThread.block(ModalContext.java:172)
at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:387)
at org.eclipse.jface.wizard.WizardDialog.run(WizardDialog.java:1002)
at org.eclipse.wst.server.ui.internal.wizard.TaskWizard.performFinish(TaskWizard.java:223)
at org.eclipse.jface.wizard.WizardDialog.finishPressed(WizardDialog.java:799)
at org.eclipse.jface.wizard.WizardDialog.buttonPressed(WizardDialog.java:429)
at org.eclipse.jface.dialogs.Dialog$2.widgetSelected(Dialog.java:619)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:248)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4362)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1113)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4180)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3769)
at org.eclipse.jface.window.Window.runEventLoop(Window.java:827)
at org.eclipse.jface.window.Window.open(Window.java:803)
at org.eclipse.wst.server.ui.internal.ServerUIPlugin.showNewRuntimeWizard(ServerUIPlugin.java:578)
at org.eclipse.wst.server.ui.ServerUIUtil.showNewRuntimeWizard(ServerUIUtil.java:57)
at org.eclipse.wst.web.ui.internal.wizards.DataModelFacetCreationWizardPage.launchNewRuntimeWizard(DataModelFacetCreationWizardPage.java:414)
at org.eclipse.wst.web.ui.internal.wizards.DataModelFacetCreationWizardPage.internalLaunchNewRuntimeWizard(DataModelFacetCreationWizardPage.java:472)
at org.eclipse.wst.web.ui.internal.wizards.DataModelFacetCreationWizardPage$7.widgetSelected(DataModelFacetCreationWizardPage.java:522)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:248)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4362)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1113)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4180)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3769)
at org.eclipse.jface.window.Window.runEventLoop(Window.java:827)
at org.eclipse.jface.window.Window.open(Window.java:803)
at org.eclipse.ui.internal.actions.NewWizardShortcutAction.run(NewWizardShortcutAction.java:136)
at org.eclipse.jface.action.Action.runWithEvent(Action.java:473)
at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:595)
at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:511)
at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:420)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4362)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1113)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4180)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3769)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1127)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1018)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:156)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:694)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:606)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
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: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:669)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:608)
at org.eclipse.equinox.launcher.Main.run(Main.java:1515)
Caused by: org.eclipse.swt.SWTException: Widget is disposed
at org.eclipse.swt.SWT.error(SWT.java:4491)
at org.eclipse.swt.SWT.error(SWT.java:4406)
at org.eclipse.swt.SWT.error(SWT.java:4377)
at org.eclipse.swt.widgets.Widget.error(Widget.java:482)
at org.eclipse.swt.widgets.Widget.checkWidget(Widget.java:354)
at org.eclipse.swt.widgets.Text.setText(Text.java:2284)
at org.eclipse.jst.server.tomcat.ui.internal.TomcatRuntimeComposite.init(TomcatRuntimeComposite.java:354)
at org.eclipse.jst.server.tomcat.ui.internal.TomcatRuntimeComposite.setRuntime(TomcatRuntimeComposite.java:121)
at org.eclipse.jst.server.tomcat.ui.internal.TomcatRuntimeWizardFragment.enter(TomcatRuntimeWizardFragment.java:56)
at org.eclipse.wst.server.ui.internal.wizard.TaskWizard$2$1.run(TaskWizard.java:173)
at org.eclipse.ui.internal.UILockListener.doPendingWork(UILockListener.java:162)
at org.eclipse.ui.internal.UISynchronizer$3.run(UISynchronizer.java:154)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135)
... 61 more
!ENTRY org.eclipse.jface 4 0 2016-05-18 14:03:16.853
!MESSAGE Unhandled event loop exception during blocked modal context.
!STACK 0
org.eclipse.swt.SWTException: Failed to execute runnable (org.eclipse.swt.SWTException: Widget is disposed)
at org.eclipse.swt.SWT.error(SWT.java:4491)
at org.eclipse.swt.SWT.error(SWT.java:4406)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:138)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4155)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3772)
at org.eclipse.jface.operation.ModalContext$ModalContextThread.block(ModalContext.java:172)
at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:387)
at org.eclipse.jface.wizard.WizardDialog.run(WizardDialog.java:1002)
at org.eclipse.wst.server.ui.internal.wizard.TaskWizard.performFinish(TaskWizard.java:223)
at org.eclipse.jface.wizard.WizardDialog.finishPressed(WizardDialog.java:799)
at org.eclipse.jface.wizard.WizardDialog.buttonPressed(WizardDialog.java:429)
at org.eclipse.jface.dialogs.Dialog$2.widgetSelected(Dialog.java:619)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:248)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4362)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1113)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4180)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3769)
at org.eclipse.jface.window.Window.runEventLoop(Window.java:827)
at org.eclipse.jface.window.Window.open(Window.java:803)
at org.eclipse.wst.server.ui.internal.ServerUIPlugin.showNewRuntimeWizard(ServerUIPlugin.java:578)
at org.eclipse.wst.server.ui.ServerUIUtil.showNewRuntimeWizard(ServerUIUtil.java:57)
at org.eclipse.wst.web.ui.internal.wizards.DataModelFacetCreationWizardPage.launchNewRuntimeWizard(DataModelFacetCreationWizardPage.java:414)
at org.eclipse.wst.web.ui.internal.wizards.DataModelFacetCreationWizardPage.internalLaunchNewRuntimeWizard(DataModelFacetCreationWizardPage.java:472)
at org.eclipse.wst.web.ui.internal.wizards.DataModelFacetCreationWizardPage$7.widgetSelected(DataModelFacetCreationWizardPage.java:522)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:248)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4362)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1113)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4180)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3769)
at org.eclipse.jface.window.Window.runEventLoop(Window.java:827)
at org.eclipse.jface.window.Window.open(Window.java:803)
at org.eclipse.ui.internal.actions.NewWizardShortcutAction.run(NewWizardShortcutAction.java:136)
at org.eclipse.jface.action.Action.runWithEvent(Action.java:473)
at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:595)
at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:511)
at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:420)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4362)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1113)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4180)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3769)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1127)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1018)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:156)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:694)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:606)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
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: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:669)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:608)
at org.eclipse.equinox.launcher.Main.run(Main.java:1515)
Caused by: org.eclipse.swt.SWTException: Widget is disposed
at org.eclipse.swt.SWT.error(SWT.java:4491)
at org.eclipse.swt.SWT.error(SWT.java:4406)
at org.eclipse.swt.SWT.error(SWT.java:4377)
at org.eclipse.swt.widgets.Widget.error(Widget.java:482)
at org.eclipse.swt.widgets.Widget.checkWidget(Widget.java:354)
at org.eclipse.swt.widgets.Text.setText(Text.java:2284)
at org.eclipse.jst.server.tomcat.ui.internal.TomcatRuntimeComposite.init(TomcatRuntimeComposite.java:354)
at org.eclipse.jst.server.tomcat.ui.internal.TomcatRuntimeComposite.setRuntime(TomcatRuntimeComposite.java:121)
at org.eclipse.jst.server.tomcat.ui.internal.TomcatRuntimeWizardFragment.enter(TomcatRuntimeWizardFragment.java:56)
at org.eclipse.wst.server.ui.internal.wizard.TaskWizard$2$1.run(TaskWizard.java:173)
at org.eclipse.ui.internal.UILockListener.doPendingWork(UILockListener.java:162)
at org.eclipse.ui.internal.UISynchronizer$3.run(UISynchronizer.java:154)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135)
... 61 more
!ENTRY org.eclipse.epp.logging.aeri.ide 4 6 2016-05-18 14:04:16.417
!MESSAGE Saving preferences failed: reporterEmail=null ; version: 1.100.0.v20160217-0435
!STACK 0
java.lang.NullPointerException
at org.eclipse.core.internal.preferences.EclipsePreferences.put(EclipsePreferences.java:908)
at org.eclipse.ui.preferences.ScopedPreferenceStore.putValue(ScopedPreferenceStore.java:486)
at org.eclipse.epp.internal.logging.aeri.ide.di.SystemSettingsCreationFunction$1.notifyChanged(SystemSettingsCreationFunction.java:97)
at org.eclipse.emf.common.notify.impl.BasicNotifierImpl.eNotify(BasicNotifierImpl.java:374)
at org.eclipse.epp.logging.aeri.core.impl.UserSettingsImpl.setReporterEmail(UserSettingsImpl.java:217)
at org.eclipse.epp.logging.aeri.core.impl.UserSettingsImpl.eSet(UserSettingsImpl.java:299)
at org.eclipse.epp.logging.aeri.core.impl.SystemSettingsImpl.eSet(SystemSettingsImpl.java:356)
at org.eclipse.emf.ecore.impl.BasicEObjectImpl.eSet(BasicEObjectImpl.java:1071)
at org.eclipse.epp.internal.logging.aeri.ide.utils.Servers.copyIfUnset(Servers.java:152)
at org.eclipse.epp.internal.logging.aeri.ide.utils.Servers.setAsDefaults(Servers.java:124)
at org.eclipse.epp.internal.logging.aeri.ide.dialogs.EclipseServerPage.dispose(EclipseServerPage.java:195)
at org.eclipse.jface.wizard.Wizard.dispose(Wizard.java:197)
at org.eclipse.jface.wizard.WizardDialog.hardClose(WizardDialog.java:846)
at org.eclipse.jface.wizard.WizardDialog.close(WizardDialog.java:477)
at org.eclipse.jface.wizard.WizardDialog.cancelPressed(WizardDialog.java:468)
at org.eclipse.jface.wizard.WizardDialog$1.widgetSelected(WizardDialog.java:321)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:248)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4362)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1113)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4180)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3769)
at org.eclipse.jface.window.Window.runEventLoop(Window.java:827)
at org.eclipse.jface.window.Window.open(Window.java:803)
at org.eclipse.epp.internal.logging.aeri.ide.handlers.OpenSystemSetupWizardHandler.execute(OpenSystemSetupWizardHandler.java:69)
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.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:56)
at org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:252)
at org.eclipse.e4.core.internal.di.InjectorImpl.invoke(InjectorImpl.java:234)
at org.eclipse.e4.core.contexts.ContextInjectionFactory.invoke(ContextInjectionFactory.java:132)
at org.eclipse.epp.logging.aeri.core.SystemControl.executeHandler(SystemControl.java:109)
at org.eclipse.epp.internal.logging.aeri.ide.notifications.SetupSystemNotification$1.execute(SetupSystemNotification.java:44)
at org.eclipse.epp.internal.logging.aeri.ide.notifications.NotificationPopup$1.linkActivated(NotificationPopup.java:264)
at org.eclipse.ui.forms.widgets.AbstractHyperlink.handleActivate(AbstractHyperlink.java:233)
at org.eclipse.ui.forms.widgets.ImageHyperlink.handleActivate(ImageHyperlink.java:201)
at org.eclipse.ui.forms.widgets.AbstractHyperlink.handleMouseUp(AbstractHyperlink.java:327)
at org.eclipse.ui.forms.widgets.AbstractHyperlink.access$2(AbstractHyperlink.java:311)
at org.eclipse.ui.forms.widgets.AbstractHyperlink$4.handleEvent(AbstractHyperlink.java:125)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4362)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1113)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4180)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3769)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1127)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1018)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:156)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:694)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:606)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
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: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:669)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:608)
at org.eclipse.equinox.launcher.Main.run(Main.java:1515)
There would have been some more lines but I exceeded the characters limit.
Edit 2
Edit 3: The problem was that I downloaded the (tomcat) zip for Mac (yep, I feel so bad right now). Thanks a lot, #holidayCoder !

I had same problem with eclipse JUNO
download binaries of tomcat 8
steps to integrate with eclipse
1 .Go to window>preferences>Server>runtime envirnoment>add(browse where your extracted tomcat binary is) click finish
Go to windows>show view>server
click on add new server >Apache>Server version and just navigate clicking ok and finish
You'll have your server ready
Because sometime eclipse dosen't accepts new server from server tab directly
Hope that helps!

To add Server to project in eclipse do this steps:
1- After creating your web app
2- Right click on your project then press properties .
3- Then move Java build path
4-Then move the libraries tab
5- Press Add Library button
6- From the pop up select server runtime
7- select tomcat path.
8- You must see it now
check and replay if it now working , we can make another work arounds

your server is not properly configured. click on this link to create new server. remove all configured server and add new tomcat server.
or,
Restarting the Eclipse IDE solved the problem. or just go to ....metadata.plugins\org.eclipse.e4.workbench // folder locaiton. and deleted all the content of workbench.xmi and restarted the application. hopefully will work for you.

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 :)

What is wrong with my GMF generated diagram code?

I have generated a non-RCP diagram editor with GMF. My Eclipse version is: Indigo Service Release 2. When I would like to Run as an Eclipse Application it fails and the following error log is generated:
!SESSION 2013-07-19 10:53:52.410 -----------------------------------------------
eclipse.buildId=M20120208-0800
java.version=1.7.0_25
java.vendor=Oracle Corporation
BootLoader constants: OS=win32, ARCH=x86_64, WS=win32, NL=en_US
Framework arguments: -product org.eclipse.platform.ide
Command-line arguments: -product org.eclipse.platform.ide -data C:\Users\Peter\Coding\EclipseIndigo/../runtime-EclipseApplication -dev file:C:/Users/Peter/Coding/EclipseIndigo/.metadata/.plugins/org.eclipse.pde.core/QSTools plugin old/dev.properties -os win32 -ws win32 -arch x86_64 -consoleLog
!ENTRY org.eclipse.osgi 2 0 2013-07-19 10:53:55.250
!MESSAGE One or more bundles are not resolved because the following root constraints are not resolved:
!SUBENTRY 1 org.eclipse.osgi 2 0 2013-07-19 10:53:55.250
!MESSAGE Bundle reference:file:/C:/Users/Peter/Coding/EclipseIndigo/com.qs.qsmodel.diagram/ was not resolved.
!SUBENTRY 2 com.qs.qsmodel.diagram 2 0 2013-07-19 10:53:55.250
!MESSAGE Missing required bundle org.eclipse.gmf.tooling.runtime_0.0.0.
!ENTRY org.eclipse.osgi 2 0 2013-07-19 10:53:55.255
!MESSAGE The following is a complete list of bundles which are not resolved, see the prior log entry for the root cause if it exists:
!SUBENTRY 1 org.eclipse.osgi 2 0 2013-07-19 10:53:55.255
!MESSAGE Bundle com.qs.qsmodel.diagram_1.0.0.qualifier [488] was not resolved.
!SUBENTRY 2 com.qs.qsmodel.diagram 2 0 2013-07-19 10:53:55.255
!MESSAGE Missing required bundle org.eclipse.gmf.tooling.runtime_0.0.0.
!ENTRY org.eclipse.osgi 4 0 2013-07-19 10:53:55.269
!MESSAGE An error occurred while automatically activating bundle org.eclipse.ui.workbench (439).
!STACK 0
org.osgi.framework.BundleException: The activator org.eclipse.ui.internal.WorkbenchPlugin for bundle org.eclipse.ui.workbench is invalid
at org.eclipse.osgi.framework.internal.core.AbstractBundle.loadBundleActivator(AbstractBundle.java:171)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:679)
at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:381)
at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:299)
at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:440)
at org.eclipse.osgi.internal.loader.BundleLoader.setLazyTrigger(BundleLoader.java:268)
at org.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:107)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass(ClasspathManager.java:463)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalClass(DefaultClassLoader.java:216)
at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:400)
at org.eclipse.osgi.internal.loader.SingleSourcePackage.loadClass(SingleSourcePackage.java:35)
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:473)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:429)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:417)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Class.java:2483)
at java.lang.Class.getConstructor0(Class.java:2793)
at java.lang.Class.newInstance(Class.java:345)
at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:184)
at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:905)
at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)
at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:55)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:191)
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:344)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)
at org.eclipse.equinox.launcher.Main.run(Main.java:1410)
at org.eclipse.equinox.launcher.Main.main(Main.java:1386)
Caused by: java.lang.NoClassDefFoundError: org/eclipse/swt/SWTError
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Class.java:2483)
at java.lang.Class.getConstructor0(Class.java:2793)
at java.lang.Class.newInstance(Class.java:345)
at org.eclipse.osgi.framework.internal.core.AbstractBundle.loadBundleActivator(AbstractBundle.java:166)
... 36 more
Caused by: java.lang.ClassNotFoundException: org.eclipse.swt.SWTError
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:513)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:429)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:417)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 41 more
Root exception:
java.lang.NoClassDefFoundError: org/eclipse/swt/SWTError
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Class.java:2483)
at java.lang.Class.getConstructor0(Class.java:2793)
at java.lang.Class.newInstance(Class.java:345)
at org.eclipse.osgi.framework.internal.core.AbstractBundle.loadBundleActivator(AbstractBundle.java:166)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:679)
at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:381)
at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:299)
at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:440)
at org.eclipse.osgi.internal.loader.BundleLoader.setLazyTrigger(BundleLoader.java:268)
at org.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:107)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass(ClasspathManager.java:463)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalClass(DefaultClassLoader.java:216)
at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:400)
at org.eclipse.osgi.internal.loader.SingleSourcePackage.loadClass(SingleSourcePackage.java:35)
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:473)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:429)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:417)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Class.java:2483)
at java.lang.Class.getConstructor0(Class.java:2793)
at java.lang.Class.newInstance(Class.java:345)
at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:184)
at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:905)
at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)
at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:55)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:191)
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:344)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)
at org.eclipse.equinox.launcher.Main.run(Main.java:1410)
at org.eclipse.equinox.launcher.Main.main(Main.java:1386)
Caused by: java.lang.ClassNotFoundException: org.eclipse.swt.SWTError
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:513)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:429)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:417)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 41 more
!ENTRY org.eclipse.osgi 2 0 2013-07-19 10:53:55.291
!MESSAGE One or more bundles are not resolved because the following root constraints are not resolved:
!SUBENTRY 1 org.eclipse.osgi 2 0 2013-07-19 10:53:55.292
!MESSAGE Bundle reference:file:/C:/Users/Peter/Coding/EclipseIndigo/com.qs.qsmodel.diagram/ was not resolved.
!SUBENTRY 2 com.qs.qsmodel.diagram 2 0 2013-07-19 10:53:55.292
!MESSAGE Missing required bundle org.eclipse.gmf.tooling.runtime_0.0.0.
!ENTRY org.eclipse.osgi 2 0 2013-07-19 10:53:55.294
!MESSAGE The following is a complete list of bundles which are not resolved, see the prior log entry for the root cause if it exists:
!SUBENTRY 1 org.eclipse.osgi 2 0 2013-07-19 10:53:55.294
!MESSAGE Bundle com.qs.qsmodel.diagram_1.0.0.qualifier [488] was not resolved.
!SUBENTRY 2 com.qs.qsmodel.diagram 2 0 2013-07-19 10:53:55.294
!MESSAGE Missing required bundle org.eclipse.gmf.tooling.runtime_0.0.0.
!ENTRY org.eclipse.osgi 4 0 2013-07-19 10:53:55.298
!MESSAGE Application error
!STACK 1
org.eclipse.core.runtime.CoreException: Plug-in "org.eclipse.ui.ide.application" was unable to instantiate class "org.eclipse.ui.internal.ide.application.IDEApplication".
at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.throwException(RegistryStrategyOSGI.java:194)
at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:188)
at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:905)
at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)
at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:55)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:191)
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:344)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)
at org.eclipse.equinox.launcher.Main.run(Main.java:1410)
at org.eclipse.equinox.launcher.Main.main(Main.java:1386)
Caused by: java.lang.NoClassDefFoundError: org/eclipse/ui/application/WorkbenchAdvisor
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Class.java:2483)
at java.lang.Class.getConstructor0(Class.java:2793)
at java.lang.Class.newInstance(Class.java:345)
at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:184)
... 16 more
Caused by: org.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter$TerminatingClassNotFoundException: An error occurred while automatically activating bundle org.eclipse.ui.workbench (439).
at org.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:122)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass(ClasspathManager.java:463)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalClass(DefaultClassLoader.java:216)
at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:400)
at org.eclipse.osgi.internal.loader.SingleSourcePackage.loadClass(SingleSourcePackage.java:35)
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:473)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:429)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:417)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 21 more
Caused by: org.osgi.framework.BundleException: The activator org.eclipse.ui.internal.WorkbenchPlugin for bundle org.eclipse.ui.workbench is invalid
at org.eclipse.osgi.framework.internal.core.AbstractBundle.loadBundleActivator(AbstractBundle.java:171)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:679)
at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:381)
at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:299)
at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:440)
at org.eclipse.osgi.internal.loader.BundleLoader.setLazyTrigger(BundleLoader.java:268)
at org.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:107)
... 30 more
Caused by: java.lang.NoClassDefFoundError: org/eclipse/swt/SWTError
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Class.java:2483)
at java.lang.Class.getConstructor0(Class.java:2793)
at java.lang.Class.newInstance(Class.java:345)
at org.eclipse.osgi.framework.internal.core.AbstractBundle.loadBundleActivator(AbstractBundle.java:166)
... 36 more
Caused by: java.lang.ClassNotFoundException: org.eclipse.swt.SWTError
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:513)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:429)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:417)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 41 more

I have checked the org.eclipse.swt and the org.eclipse.core.net bundles at the Run as Eclipse application configurations and it works now.
Remark: it is worth enabling Validate plug-ins automatically prior to launching (Run configurations->Plug-ins>Validate plug-ins automatically prior to launching tick)