Auto-merging via docker-versions-create

.github/workflows/build-multiarch.yml

@@ -27,7 +27,7 @@ jobs:
   docker-buildx:
     runs-on: ubuntu-20.04
     env:
-      CACHE_NAME: java8-multiarch
+      CACHE_NAME: java16
     steps:
       - name: Checkout
         uses: actions/checkout@v2.3.4

.github/workflows/main.yml

@@ -30,7 +30,7 @@ jobs:
       - test
     runs-on: ubuntu-20.04
     env:
-      CACHE_NAME: java8-multiarch
+      CACHE_NAME: java16
 
     steps:
     - uses: actions/checkout@v2.3.4

Dockerfile

@@ -1,4 +1,4 @@
-FROM adoptopenjdk:8-jre-hotspot
+FROM adoptopenjdk:16-jre
 
 LABEL org.opencontainers.image.authors="Geoff Bourne <itzgeoff@gmail.com>"
 

start-configuration

@@ -98,6 +98,12 @@ case "${TYPE^^}" in
   ;;
 
   FORGE)
+    log "**********************************************************************"
+    log "WARNING: The image tag itzg/minecraft-server:java8 is recommended"
+    log "         since some mods require Java 8"
+    log "         Exception traces reporting ClassCastException: class jdk.internal.loader.ClassLoaders\$AppClassLoader"
+    log "         can be fixed with java8"
+    log "**********************************************************************"
     exec ${SCRIPTS:-/}start-deployForge "$@"
   ;;
 
@@ -110,6 +116,12 @@ case "${TYPE^^}" in
   ;;
 
   FTB|CURSEFORGE)
+    log "**********************************************************************"
+    log "WARNING: The image tag itzg/minecraft-server:java8 is recommended"
+    log "         since some mods require Java 8"
+    log "         Exception traces reporting ClassCastException: class jdk.internal.loader.ClassLoaders\$AppClassLoader"
+    log "         can be fixed with java8"
+    log "**********************************************************************"
     exec ${SCRIPTS:-/}start-deployCF "$@"
   ;;