SSL connection problem

I've gone through the process of creating new keystores and keys, and making them available to the BF console.

I've then installed the keys on an agent and done a connection test (using the command line). The connection fails with the following error:

java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty.

BF version is 7.1.1.4 on Windows Server 2003, agent is on WinXP.

Anyone experience this sort of problem?