ignore specification的意思|示意

From the beginning, the JVM specification has required JVMs to ignore attributes of unknown types.

从一开始，JVM规范就已经要求JVM忽略未知类型的属性。

If some are missing, either ignore the errors (they are to be expected in this case) or add JMS selectors to the activation specification in the Application Server administrative console.

如果某些操作缺失，则要么忽略错误(本例中可能会出现错误)，要么将JMS选择器添加到Application Server管理控制台中的激活规范。