@Daming Xue wrote: This maybe related to below   The unlimited policy files are required only for JDK 8, 7, and 6 updates earlier than 8u161, 7u171, and 6u181. On those versions and later, the stronger cryptographic algorithms are available by default.   https://bugs.java.com/bugdatabase/view_bug.do?bug_id=JDK-8170157 Okay, that makes sense. Thanks for the answers. ... View more