use jdk base 2.2.0 - drools

use jdk base 2.2.0

Issue-ID: POLICY-2917
Change-Id: Ib7692dd05290dcb672a30174ed90441d364a4b83
Signed-off-by: Taka Cho <takamune.cho@att.com>
diff --git a/packages/docker/src/main/docker/Dockerfile b/packages/docker/src/main/docker/Dockerfile
index f6cd242..2c3c3aa 100644
--- a/packages/docker/src/main/docker/Dockerfile
+++ b/packages/docker/src/main/docker/Dockerfile
@@ -18,7 +18,7 @@
 # SPDX-License-Identifier: Apache-2.0
 # ============LICENSE_END=========================================================
 #-------------------------------------------------------------------------------
-FROM onap/policy-jdk-alpine:2.1.1
+FROM onap/policy-jdk-alpine:2.2.0
 
 LABEL maintainer="Policy Team"