Auto-merging via docker-versions-create

Fixes #687

Dockerfile

@@ -1,4 +1,4 @@
-FROM openjdk:8u212-jre-alpine
+FROM adoptopenjdk/openjdk11:alpine-jre
 
 LABEL org.opencontainers.image.authors="Geoff Bourne <itzgeoff@gmail.com>"
 

start-deployPaper

@@ -4,6 +4,17 @@
 set -o pipefail
 isDebugging && set -x
 
+if [[ $PAPER_DOWNLOAD_URL ]]; then
+  export SERVER=$(getFilenameFromUrl "${PAPER_DOWNLOAD_URL}")
+
+  if [ -f "$SERVER" ]; then
+    zarg=(-z "$SERVER")
+  fi
+
+  echo "Preparing custom PaperMC jar from $PAPER_DOWNLOAD_URL"
+
+  curl -fsSL -o "$SERVER" "${zarg[@]}" "${PAPER_DOWNLOAD_URL}"
+else
   # PaperMC API v2 docs : https://papermc.io/api/docs/swagger-ui/index.html?configUrl=/api/openapi/swagger-config
 
   build=$(curl -fsSL "https://papermc.io/api/v2/projects/paper/versions/${VANILLA_VERSION}" -H  "accept: application/json" \
@@ -53,6 +64,7 @@ if [ $? != 0 ]; then
     echo "ERROR: failed to download PaperMC from version=${VANILLA_VERSION} build=${build} download=${SERVER}"
     exit 1
   fi
+fi
 
 # Normalize on Spigot for downstream operations
 export TYPE=SPIGOT