Which alternate methods are need in RHPAM 7 API for getTasksByGroup, getTasksOwned and signalEvent ?

Issue

After migrating jBPM6.4 to RHPAM 7.11.0, the RHPAM API from java client code has changed.

@PostMapping(value = "/StartProcess", consumes = { MediaType.APPLICATION_JSON_UTF8_VALUE })
@GetMapping(value = "/ClaimTask/{id}", produces = { MediaType.APPLICATION_JSON_UTF8_VALUE })
@PostMapping(value = "/SignalProcess/{processDeploymentId}/{signal}", consumes = {MediaType.APPLICATION_JSON_UTF8_VALUE })
@PostMapping(value = "/ClaimMultipleTasks", consumes = { MediaType.APPLICATION_JSON_UTF8_VALUE })
@PostMapping(value = "/DelegateTask/{id}", consumes = { MediaType.APPLICATION_JSON_UTF8_VALUE })
@PostMapping(value = "/DelegateMultipleTasks", consumes = { MediaType.APPLICATION_JSON_UTF8_VALUE })
@PostMapping(value = "/StartTask/{id}", consumes = { MediaType.APPLICATION_JSON_UTF8_VALUE })
@PostMapping(value = "/ReleaseTask/{id}", consumes = { MediaType.APPLICATION_JSON_UTF8_VALUE })
@PostMapping(value = "/CompleteTask/{id}/{operation}", consumes = { MediaType.APPLICATION_JSON_UTF8_VALUE })
@PostMapping(value = { "/StartAndCompleteTask/{id}/{operation}" }, consumes = { "application/json;charset=UTF-8" })
@PostMapping(value = "/taskList", consumes = { MediaType.APPLICATION_JSON_UTF8_VALUE })
@GetMapping("/taskContent/{taskId}")
@PostMapping(value = "/abortTask/{parentProcessId}", consumes = { MediaType.APPLICATION_JSON_UTF8_VALUE })
@PostMapping(value = "/bulkAbort", consumes = { MediaType.APPLICATION_JSON_UTF8_VALUE })
@PostMapping(value = "/completeWorkItem/{workItemId}", consumes = { MediaType.APPLICATION_JSON_UTF8_VALUE })
@RequestMapping(value = "/memoryStatus", method = RequestMethod.GET, produces = {MediaType.APPLICATION_JSON_UTF8_VALUE })

Alternate methods are need for the next one:

service.getRuntimeEngine().getTaskService().getTasksByGroup(countryList);
service.getRuntimeEngine().getTaskService().getTasksOwned(userName, null); 
service.getRuntimeEngine(deploymentId).getKieSession().signalEvent(signal, jsonInput, id);