A：这是JDK 27新增的网络安全功能，通过实施混合密钥交换算法来增强Java应用程序的安全性。该算法结合量子抗性算法与传统算法，能够防御未来量子计算攻击，使用javax.net.ssl API的应用程序将默认受益，无需更改现有代码。

Oracle released new security updates for Java to fix 19 vulnerabilities and disable default support for SSL 3.0, an outdated version of the secure communications protocol that is vulnerable to attacks ...

Oracle has released a new Java security update to address multiple vulnerabilities, including one exploited during a recently disclosed attack that can allow eavesdropping on encrypted communications.