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diff --git a/org.argeo.cms.ui.workbench/src/org/argeo/cms/ui/workbench/internal/jcr/FullVersioningTreeContentProvider.java b/org.argeo.cms.ui.workbench/src/org/argeo/cms/ui/workbench/internal/jcr/FullVersioningTreeContentProvider.java
deleted file mode 100644
index 148605ba4..000000000
--- a/org.argeo.cms.ui.workbench/src/org/argeo/cms/ui/workbench/internal/jcr/FullVersioningTreeContentProvider.java
+++ /dev/null
@@ -1,113 +0,0 @@
-/*
- * Copyright (C) 2007-2012 Argeo GmbH
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.argeo.cms.ui.workbench.internal.jcr;
-
-import java.util.ArrayList;
-import java.util.List;
-
-import javax.jcr.Node;
-import javax.jcr.RepositoryException;
-import javax.jcr.nodetype.NodeType;
-import javax.jcr.version.Version;
-import javax.jcr.version.VersionHistory;
-import javax.jcr.version.VersionIterator;
-import javax.jcr.version.VersionManager;
-
-import org.argeo.eclipse.ui.EclipseUiException;
-import org.eclipse.jface.viewers.ITreeContentProvider;
-import org.eclipse.jface.viewers.Viewer;
-
-/**
- * Display some version information of a JCR full versionable node in a tree
- * like structure
- */
-public class FullVersioningTreeContentProvider implements ITreeContentProvider {
-	private static final long serialVersionUID = 8691772509491211112L;
-
-	/**
-	 * Sends back the first level of the Tree. input element must be a single
-	 * node object
-	 */
-	public Object[] getElements(Object inputElement) {
-		try {
-			Node rootNode = (Node) inputElement;
-			String curPath = rootNode.getPath();
-			VersionManager vm = rootNode.getSession().getWorkspace()
-					.getVersionManager();
-
-			VersionHistory vh = vm.getVersionHistory(curPath);
-			List<Version> result = new ArrayList<Version>();
-			VersionIterator vi = vh.getAllLinearVersions();
-
-			while (vi.hasNext()) {
-				result.add(vi.nextVersion());
-			}
-			return result.toArray();
-		} catch (RepositoryException re) {
-			throw new EclipseUiException(
-					"Unexpected error while getting version elements", re);
-		}
-	}
-
-	public Object[] getChildren(Object parentElement) {
-		try {
-			if (parentElement instanceof Version) {
-				List<Node> tmp = new ArrayList<Node>();
-				tmp.add(((Version) parentElement).getFrozenNode());
-				return tmp.toArray();
-			}
-		} catch (RepositoryException re) {
-			throw new EclipseUiException("Unexpected error while getting child "
-					+ "node for version element", re);
-		}
-		return null;
-	}
-
-	public Object getParent(Object element) {
-		try {
-			// this will not work in a simpleVersionning environment, parent is
-			// not a node.
-			if (element instanceof Node
-					&& ((Node) element).isNodeType(NodeType.NT_FROZEN_NODE)) {
-				Node node = (Node) element;
-				return node.getParent();
-			} else
-				return null;
-		} catch (RepositoryException e) {
-			return null;
-		}
-	}
-
-	public boolean hasChildren(Object element) {
-		try {
-			if (element instanceof Version)
-				return true;
-			else if (element instanceof Node)
-				return ((Node) element).hasNodes();
-			else
-				return false;
-		} catch (RepositoryException e) {
-			throw new EclipseUiException("Cannot check children of " + element, e);
-		}
-	}
-
-	public void dispose() {
-	}
-
-	public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
-	}
-
-}