2013-03-27 10:34:02,487 ERROR info.magnolia.rendering.engine.RenderingFilter :
java.util.ConcurrentModificationException
at java.util.AbstractList$Itr.checkForComodification(AbstractList.java:372)
at java.util.AbstractList$Itr.next(AbstractList.java:343)
at info.magnolia.cms.security.AccessManagerImpl.getPermissions(AccessManagerImpl.java:82)
at info.magnolia.cms.security.AccessManagerImpl.isGranted(AccessManagerImpl.java:59)
at info.magnolia.cms.core.DefaultACLBasedPermissions.canRead(DefaultACLBasedPermissions.java:157)
at info.magnolia.cms.core.DefaultACLBasedPermissions.canRead(DefaultACLBasedPermissions.java:149)
at org.apache.jackrabbit.core.security.DefaultAccessManager.canRead(DefaultAccessManager.java:265)
at org.apache.jackrabbit.core.ItemManager.canRead(ItemManager.java:438)
at org.apache.jackrabbit.core.ItemManager.createItemData(ItemManager.java:843)
at org.apache.jackrabbit.core.ItemManager.getItemData(ItemManager.java:391)
at org.apache.jackrabbit.core.ItemManager.itemExists(ItemManager.java:304)
at org.apache.jackrabbit.core.ItemManager.itemExists(ItemManager.java:523)
at org.apache.jackrabbit.core.NodeImpl.hasProperty(NodeImpl.java:2429)
at info.magnolia.jcr.wrapper.DelegateNodeWrapper.hasProperty(DelegateNodeWrapper.java:299)
at info.magnolia.jcr.util.PropertyUtil.getString(PropertyUtil.java:346)
at info.magnolia.jcr.util.PropertyUtil.getString(PropertyUtil.java:336)
at info.magnolia.module.resources.renderers.ResourcesTextTemplateRenderer.newModel(ResourcesTextTemplateRenderer.java:183)
at info.magnolia.rendering.renderer.AbstractRenderer.render(AbstractRenderer.java:117)
at info.magnolia.rendering.engine.DefaultRenderingEngine.render(DefaultRenderingEngine.java:97)
at info.magnolia.rendering.engine.DefaultRenderingEngine$$EnhancerByCGLIB$$3ce1c4b6.render(<generated>)
at info.magnolia.rendering.engine.RenderingFilter.render(RenderingFilter.java:173)
...