The Vault Cross Platform Client (CPC) only supports Java 7 and Java 8 up to 8.0.0.151. In Java 8 build 152 a bug was introduced that rendered Vault's login window inoperable.
The current work-around is to use the older build that can be found on the Oracle archived versions page: http://www.oracle.com/technetwork/java/ ... 77648.html.
For additional details see :
+ Vault Pro CPC sys requirements
+ Vault CPC sys requirements
Can't type in window on Cross Platform Client
Moderator: SourceGear
Can't type in window on Cross Platform Client
Beth Kieler
SourceGear Technical Support
SourceGear Technical Support