Exclude other bouncy castle reference.
Exclude other bouncy castle reference.

Multiple versions can cause problems. Without excluding it
there can be test failures with bouncycastle-api 2.18
(bouncy castle 1.64).

mkozell/ec2-plugin,mkozell/ec2-plugin,mkozell/ec2-plugin,jenkinsci/ec2-plugin,mkozell/ec2-plugin,jenkinsci/ec2-plugin,jenkinsci/ec2-plugin,jenkinsci/ec2-plugin