am b6fd8a3f: am 04b3e9a6: Refactoring sample plugin to use updated java interfaces.

Merge commit 'b6fd8a3fe7306b4d94ef7a11acb1d068e6e25d0e'

* commit 'b6fd8a3fe7306b4d94ef7a11acb1d068e6e25d0e':
  Refactoring sample plugin to use updated java interfaces.