Index: modules/test-db/src/test/java/org/jbpm/test/activity/task/ForkSwimlaneTest.java
===================================================================
--- modules/test-db/src/test/java/org/jbpm/test/activity/task/ForkSwimlaneTest.java	(revision 0)
+++ modules/test-db/src/test/java/org/jbpm/test/activity/task/ForkSwimlaneTest.java	(revision 0)
@@ -0,0 +1,110 @@
+/*
+ * JBoss, Home of Professional Open Source
+ * Copyright 2005, JBoss Inc., and individual contributors as indicated
+ * by the @authors tag. See the copyright.txt in the distribution for a
+ * full listing of individual contributors.
+ *
+ * This is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this software; if not, write to the Free
+ * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
+ */
+package org.jbpm.test.activity.task;
+
+import java.util.List;
+import org.jbpm.api.ProcessInstance;
+import org.jbpm.api.cmd.Command;
+import org.jbpm.api.cmd.Environment;
+import org.jbpm.api.task.Task;
+
+import org.jbpm.pvm.internal.history.HistoryEvent;
+import org.jbpm.pvm.internal.history.events.VariableCreate;
+import org.jbpm.pvm.internal.model.ExecutionImpl;
+import org.jbpm.pvm.internal.repository.RepositoryCache;
+import org.jbpm.pvm.internal.task.TaskImpl;
+import org.jbpm.pvm.internal.type.Variable;
+import org.jbpm.api.task.Task;
+import org.jbpm.test.JbpmTestCase;
+
+
+public class ForkSwimlaneTest extends JbpmTestCase {
+    private static final String PROCESS_XML = ""
+        + "<process name='ForkSwimlane' xmlns='http://jbpm.org/4.3/jpdl'>"
+        + "   <swimlane candidate-groups='A' name='A'/>"
+        + "   <swimlane candidate-groups='B' name='B'/>"
+        + "   <start name='start'>"
+        + "      <transition to='task1A'/>"
+        + "   </start>"
+        + "   <task name='task1A' swimlane='A'>"
+        + "      <transition to='task1B'/>"
+        + "   </task>"
+        + "   <task name='task1B' swimlane='B'>"
+        + "      <transition to='fork'/>"
+        + "   </task>"
+        + "   <fork name='fork'>"
+        + "      <transition to='task2A'/>"
+        + "      <transition to='task2B'/>"
+        + "   </fork>"
+        + "   <task name='task2A' swimlane='A'>"
+        + "      <transition to='join'/>"
+        + "   </task>"
+        + "   <task name='task2B' swimlane='B'>"
+        + "      <transition to='join'/>"
+        + "   </task>"
+        + "   <join name='join'>"
+        + "      <transition to='end'/>"
+        + "   </join>"
+        + "   <end name='end'/>"
+        + "</process>";
+
+    protected void setUp() throws Exception {
+        super.setUp();
+
+        String groupA = identityService.createGroup("A");
+        String groupB = identityService.createGroup("B");
+
+        identityService.createUser("lingo", "lingo", "lingo");
+        identityService.createMembership("lingo", groupA, "lingo-groupA");
+        identityService.createMembership("lingo", groupB, "lingo-groupB");
+        this.deployJpdlXmlString(PROCESS_XML);
+    }
+
+    protected void tearDown() throws Exception {
+        identityService.deleteGroup("A");
+        identityService.deleteGroup("B");
+        identityService.deleteUser("lingo");
+        super.tearDown();
+    }
+
+    public void testSwimlane() {
+        ProcessInstance processInstance = executionService
+            .startProcessInstanceByKey("ForkSwimlane");
+        takeAndCompleteTask("lingo");
+        takeAndCompleteTask("lingo");
+        completeTask("lingo");
+        completeTask("lingo");
+    }
+
+    protected void takeAndCompleteTask(String username) {
+        List<Task> tasks = taskService.findGroupTasks(username);
+        Task task = tasks.get(0);
+        taskService.takeTask(task.getId(), username);
+        taskService.completeTask(task.getId());
+    }
+
+    protected void completeTask(String username) {
+        List<Task> tasks = taskService.findPersonalTasks(username);
+        Task task = tasks.get(0);
+        taskService.completeTask(task.getId());
+    }
+}