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diff --git a/org.argeo.cms.ui.workbench/src/org/argeo/cms/ui/workbench/internal/useradmin/commands/DeleteGroups.java b/org.argeo.cms.ui.workbench/src/org/argeo/cms/ui/workbench/internal/useradmin/commands/DeleteGroups.java
new file mode 100644
index 000000000..16128b8a4
--- /dev/null
+++ b/org.argeo.cms.ui.workbench/src/org/argeo/cms/ui/workbench/internal/useradmin/commands/DeleteGroups.java
@@ -0,0 +1,100 @@
+/*
+ * 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.useradmin.commands;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+
+import org.argeo.cms.ui.workbench.WorkbenchUiPlugin;
+import org.argeo.cms.ui.workbench.internal.useradmin.UserAdminWrapper;
+import org.argeo.cms.ui.workbench.internal.useradmin.parts.UserEditorInput;
+import org.argeo.cms.util.useradmin.UserAdminUtils;
+import org.eclipse.core.commands.AbstractHandler;
+import org.eclipse.core.commands.ExecutionEvent;
+import org.eclipse.core.commands.ExecutionException;
+import org.eclipse.jface.dialogs.MessageDialog;
+import org.eclipse.jface.viewers.ISelection;
+import org.eclipse.jface.viewers.IStructuredSelection;
+import org.eclipse.ui.IEditorPart;
+import org.eclipse.ui.IWorkbenchPage;
+import org.eclipse.ui.handlers.HandlerUtil;
+import org.osgi.service.useradmin.Group;
+import org.osgi.service.useradmin.UserAdmin;
+import org.osgi.service.useradmin.UserAdminEvent;
+
+/** Delete the selected groups */
+public class DeleteGroups extends AbstractHandler {
+	public final static String ID = WorkbenchUiPlugin.PLUGIN_ID
+			+ ".deleteGroups";
+
+	/* DEPENDENCY INJECTION */
+	private UserAdminWrapper userAdminWrapper;
+
+	@SuppressWarnings("unchecked")
+	public Object execute(ExecutionEvent event) throws ExecutionException {
+		ISelection selection = HandlerUtil.getCurrentSelection(event);
+		if (selection.isEmpty())
+			return null;
+
+		List<Group> groups = new ArrayList<Group>();
+		Iterator<Group> it = ((IStructuredSelection) selection).iterator();
+		StringBuilder builder = new StringBuilder();
+		while (it.hasNext()) {
+			Group currGroup = it.next();
+			String groupName = UserAdminUtils.getUsername(currGroup);
+			// TODO add checks
+			builder.append(groupName).append("; ");
+			groups.add(currGroup);
+		}
+
+		if (!MessageDialog.openQuestion(HandlerUtil.getActiveShell(event),
+				"Delete Groups",
+				"Are you sure that you " + "want to delete these groups?\n"
+						+ builder.substring(0, builder.length() - 2)))
+			return null;
+
+		userAdminWrapper.beginTransactionIfNeeded();
+		UserAdmin userAdmin = userAdminWrapper.getUserAdmin();
+		IWorkbenchPage iwp = HandlerUtil.getActiveWorkbenchWindow(event)
+				.getActivePage();
+		for (Group group : groups) {
+			String groupName = group.getName();
+			// TODO find a way to close the editor cleanly if opened. Cannot be
+			// done through the UserAdminListeners, it causes a
+			// java.util.ConcurrentModificationException because disposing the
+			// editor unregisters and disposes the listener
+			IEditorPart part = iwp.findEditor(new UserEditorInput(groupName));
+			if (part != null)
+				iwp.closeEditor(part, false);
+			userAdmin.removeRole(groupName);
+		}
+		userAdminWrapper.commitOrNotifyTransactionStateChange();
+
+		// Update the view
+		for (Group group : groups) {
+			userAdminWrapper.notifyListeners(new UserAdminEvent(null,
+					UserAdminEvent.ROLE_REMOVED, group));
+		}
+
+		return null;
+	}
+
+	/* DEPENDENCY INJECTION */
+	public void setUserAdminWrapper(UserAdminWrapper userAdminWrapper) {
+		this.userAdminWrapper = userAdminWrapper;
+	}
+}
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