Merge branch 'master' of git.sw4j.net:sw4j-net/jre11

Dockerfile

@@ -3,4 +3,7 @@ FROM debian:buster-backports
 
 RUN apt-get update && \
     apt-get -y upgrade && \
-    apt-get -y install openjdk-11-jre
+    apt-get -y install openjdk-11-jre && \
+    sed -i -e "s/keystore\.type=pkcs12/keystore.type=jks/g" /etc/java-11-openjdk/security/java.security && \
+    rm /etc/ssl/certs/java/cacerts && \
+    /var/lib/dpkg/info/ca-certificates-java.postinst configure