code: public void testGetTablePage(){
    String tablePrefix=processEngineConfiguration.getDatabaseTablePrefix();
    List<String> taskIds=generateDummyTasks(20);
    TablePage tablePage=managementService.createTablePageQuery().tableName(tablePrefix + "ACT_RU_TASK").listPage(0,5);
    assertEquals(0,tablePage.getFirstResult());
    assertEquals(5,tablePage.getSize());
    assertEquals(5,tablePage.getRows().size());
    assertEquals(20,tablePage.getTotal());
    tablePage=managementService.createTablePageQuery().tableName(tablePrefix + "ACT_RU_TASK").listPage(14,10);
    assertEquals(14,tablePage.getFirstResult());
    assertEquals(6,tablePage.getSize());
    assertEquals(6,tablePage.getRows().size());
    assertEquals(20,tablePage.getTotal());
    taskService.deleteTasks(taskIds,true);
  }
  