Spring DataSourceTransactionManager是否支持REQUIRES_NEW？

Question

我这样测试“春季交易传播”：

fun A(){
  funB()
}
ClassA.fun A:REQUIRED 
ClassB.fun B:REQUIRES_NEW
transactionManager: DataSourceTransactionManager

它运行正常，即：DataSourceTransactionManager支持事务传播“ REQUIRES_NEW”。

但是org.springframework.transaction.jta.JtaTransactionManager（spring-tx-4.3.14.RELEASE.JAR）的描述显示：

 * <p><b>Transaction suspension (REQUIRES_NEW, NOT_SUPPORTED) is just available with a
 * JTA TransactionManager being registered.</b> Common TransactionManager locations are
 * autodetected by JtaTransactionManager, provided that the "autodetectTransactionManager"
 * flag is set to "true" (which it is by default).

谁能告诉我哪个是对的？