public String cancelAll() {
    String executionsString = executions.keySet().toString();
    for (Future<CliFunctionResult> execution : executions.values()) {
      execution.cancel(true);
    }
    executions.clear();
    return executionsString;
  }
Contains the ongoing executions of WanCopyRegionFunction
geode-wan/src/main/java/org/apache/geode/cache/wan/internal/WanCopyRegionFunctionService.java