public Switch defaultCase(String... workerTasks) {
        for (String workerTask : workerTasks) {
            this.defaultTasks.add(new SimpleTask(workerTask, workerTask));
        }
        return this;
    }
Switch case (similar to if...then...else or switch in java language)

@param taskReferenceName
@param caseExpression
java-sdk/src/main/java/com/netflix/conductor/sdk/workflow/def/tasks/Switch.java