Version bump for build JDK

.travis.yml

@@ -8,8 +8,8 @@ dist: trusty
 
 language: java
 jdk:
-  - oraclejdk9
-    #  - openjdk11
+    - openjdk11
+   #- oraclejdk9
 
 env:
   global:

hapi-fhir-jpaserver-base/src/test/java/ca/uhn/fhir/jpa/provider/r4/ExpungeR4Test.java

@@ -2,6 +2,7 @@ package ca.uhn.fhir.jpa.provider.r4;
 
 import ca.uhn.fhir.jpa.dao.DaoConfig;
 import ca.uhn.fhir.jpa.dao.IFhirResourceDao;
+import ca.uhn.fhir.jpa.provider.r4.BaseResourceProviderR4Test;
 import ca.uhn.fhir.jpa.searchparam.SearchParameterMap;
 import ca.uhn.fhir.jpa.util.ExpungeOptions;
 import ca.uhn.fhir.rest.api.server.IBundleProvider;