clover plugin freezes at startup, IDEA 11 UE and Java 1.7. (both windows and oracle jdk and linux and openjdk)

com.cenqua.clover.idea.autoupdater.NotificationIcon.init([Ljavax/swing/Icon;Ljavax/swing/Icon;III)V: com.cenqua.clover.idea.autoupdater.NotificationIcon.init([Ljavax/swing/Icon;Ljavax/swing/Icon;III)V
java.lang.NoSuchMethodError: com.cenqua.clover.idea.autoupdater.NotificationIcon.init([Ljavax/swing/Icon;Ljavax/swing/Icon;III)V
at com.cenqua.clover.idea.autoupdater.NotificationIcon.<init>(NotificationIcon.java:14)
at com.cenqua.clover.idea.autoupdater.NewVersionNotifier.addNotification(NewVersionNotifier.java:77)
at com.cenqua.clover.idea.autoupdater.NewVersionNotifier.update(NewVersionNotifier.java:29)
at com.cenqua.clover.idea.autoupdater.NewVersionNotifier.projectOpened(NewVersionNotifier.java:104)
at com.intellij.openapi.project.impl.ProjectImpl.c(ProjectImpl.java:378)
at com.intellij.openapi.project.impl.ProjectImpl.access$200(ProjectImpl.java:75)
at com.intellij.openapi.project.impl.ProjectImpl$MyProjectManagerListener.projectOpened(ProjectImpl.java:413)
at com.intellij.openapi.project.impl.ProjectManagerImpl$2.projectOpened(ProjectManagerImpl.java:150)
at com.intellij.openapi.project.impl.ProjectManagerImpl.d(ProjectManagerImpl.java:1031)
at com.intellij.openapi.project.impl.ProjectManagerImpl.openProject(ProjectManagerImpl.java:401)
at com.intellij.openapi.project.impl.ProjectManagerImpl.loadAndOpenProject(ProjectManagerImpl.java:462)
at com.intellij.ide.impl.ProjectUtil.openProject(ProjectUtil.java:175)
at com.intellij.ide.RecentProjectsManager.doOpenProject(RecentProjectsManager.java:47)
at com.intellij.ide.ReopenProjectAction.actionPerformed(ReopenProjectAction.java:59)
at com.intellij.openapi.wm.impl.welcomeScreen.WelcomeScreen$2.mouseClicked(WelcomeScreen.java:306)
at java.awt.Component.processMouseEvent(Component.java:6507)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3312)
at java.awt.Component.processEvent(Component.java:6269)
at java.awt.Container.processEvent(Container.java:2229)
at java.awt.Component.dispatchEventImpl(Component.java:4860)
at java.awt.Container.dispatchEventImpl(Container.java:2287)
at java.awt.Component.dispatchEvent(Component.java:4686)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4832)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4501)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4422)
at java.awt.Container.dispatchEventImpl(Container.java:2273)
at java.awt.Window.dispatchEventImpl(Window.java:2713)
at java.awt.Component.dispatchEvent(Component.java:4686)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:707)
at java.awt.EventQueue.access$000(EventQueue.java:101)
at java.awt.EventQueue$3.run(EventQueue.java:666)
at java.awt.EventQueue$3.run(EventQueue.java:664)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
at java.awt.EventQueue$4.run(EventQueue.java:680)
at java.awt.EventQueue$4.run(EventQueue.java:678)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)