The plugin appears to be trying to use an eclipse component which has been removed (org.eclipse.core.runtime.compatibility.auth) https://bugs.eclipse.org/bugs/show_bug.cgi?id=336129
The Eclipse Warning:
Authorization infrastructure (org.eclipse.core.runtime.compatibility.auth) not installed.
The Eclipse Error Log Stack:
java.lang.ClassNotFoundException: org.eclipse.core.internal.runtime.auth.AuthorizationDatabase
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:501)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:421)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:412)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:169)
at org.eclipse.core.internal.runtime.AuthorizationHandler.getAuthClass(AuthorizationHandler.java:51)
at org.eclipse.core.internal.runtime.AuthorizationHandler.loadKeyring(AuthorizationHandler.java:72)
at org.eclipse.core.internal.runtime.AuthorizationHandler.getAuthorizationInfo(AuthorizationHandler.java:265)
at org.eclipse.core.runtime.Platform.getAuthorizationInfo(Platform.java:625)
at net.sf.eclipsecs.core.config.configtypes.RemoteConfigurationType$RemoteConfigAuthenticator.getPasswordAuthentication(RemoteConfigurationType.java:438)
at net.sf.eclipsecs.core.config.configtypes.RemoteConfigurationType$RemoteConfigAuthenticator.getPasswordAuthentication(RemoteConfigurationType.java:471)
at java.net.Authenticator.requestPasswordAuthentication(Authenticator.java:300)
at sun.net.www.protocol.http.HttpURLConnection$1.run(HttpURLConnection.java:359)
at java.security.AccessController.doPrivileged(Native Method)
at sun.net.www.protocol.http.HttpURLConnection.privilegedRequestPasswordAuthentication(HttpURLConnection.java:355)
at sun.net.www.protocol.http.HttpURLConnection.getServerAuthentication(HttpURLConnection.java:1914)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1282)
at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:379)
at net.sf.eclipsecs.core.config.configtypes.RemoteConfigurationType.getBytesFromURLConnection(RemoteConfigurationType.java:318)
at net.sf.eclipsecs.core.config.configtypes.RemoteConfigurationType.getCheckstyleConfiguration(RemoteConfigurationType.java:112)
at net.sf.eclipsecs.core.config.CheckConfiguration.getCheckstyleConfiguration(CheckConfiguration.java:202)
at net.sf.eclipsecs.ui.properties.CheckstylePropertyPage.isValid(CheckstylePropertyPage.java:477)
at org.eclipse.jface.preference.PreferenceDialog.isCurrentPageValid(PreferenceDialog.java:923)
at org.eclipse.jface.preference.PreferenceDialog.updateButtons(PreferenceDialog.java:1384)
at net.sf.eclipsecs.ui.properties.CheckstylePropertyPage$PageController.widgetSelected(CheckstylePropertyPage.java:599)
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.Widget.sendEvent(Widget.java:1053)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1077)
at org.eclipse.swt.widgets.Widget.sendSelectionEvent(Widget.java:1094)
at org.eclipse.swt.widgets.TabFolder.createItem(TabFolder.java:251)
at org.eclipse.swt.widgets.TabItem.<init>(TabItem.java:74)
at net.sf.eclipsecs.ui.properties.CheckstylePropertyPage.createContents(CheckstylePropertyPage.java:290)
at org.eclipse.jface.preference.PreferencePage.createControl(PreferencePage.java:232)
at org.eclipse.jface.preference.PreferenceDialog.createPageControl(PreferenceDialog.java:1502)
at org.eclipse.jface.preference.PreferenceDialog$14.run(PreferenceDialog.java:1259)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:49)
at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)
at org.eclipse.jface.preference.PreferenceDialog.showPage(PreferenceDialog.java:1253)
at org.eclipse.ui.internal.dialogs.FilteredPreferenceDialog.showPage(FilteredPreferenceDialog.java:675)
at org.eclipse.jface.preference.PreferenceDialog$10.run(PreferenceDialog.java:709)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
at org.eclipse.jface.preference.PreferenceDialog$9.selectionChanged(PreferenceDialog.java:705)
at org.eclipse.jface.viewers.StructuredViewer$3.run(StructuredViewer.java:888)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:49)
at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)
at org.eclipse.jface.viewers.StructuredViewer.firePostSelectionChanged(StructuredViewer.java:886)
at org.eclipse.jface.viewers.StructuredViewer.handlePostSelect(StructuredViewer.java:1226)
at org.eclipse.jface.viewers.StructuredViewer$5.widgetSelected(StructuredViewer.java:1251)
at org.eclipse.jface.util.OpenStrategy.firePostSelectionEvent(OpenStrategy.java:262)
at org.eclipse.jface.util.OpenStrategy.access$5(OpenStrategy.java:256)
at org.eclipse.jface.util.OpenStrategy$3.run(OpenStrategy.java:433)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4144)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3761)
at org.eclipse.jface.window.Window.runEventLoop(Window.java:825)
at org.eclipse.jface.window.Window.open(Window.java:801)
at org.eclipse.ui.dialogs.PropertyDialogAction.run(PropertyDialogAction.java:158)
at org.eclipse.jface.action.Action.runWithEvent(Action.java:498)
at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:584)
at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:501)
at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:411)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4169)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3758)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1029)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:923)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:86)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:588)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:543)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:124)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:353)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:180)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:629)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:584)
at org.eclipse.equinox.launcher.Main.run(Main.java:1438)</init>
eclipse.buildId=M20120914-1800
java.version=1.6.0_31
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=win32, ARCH=x86_64, WS=win32, NL=en_US
Command-line arguments: -os win32 -ws win32 -arch x86_64 -clean
Fixed in CVS head, now uses the Equinox secure storage. Stored credentials can be managed also via the Secure Storage preference page.