Fix Java11 Dockerfile

Dockerfile

@@ -1,26 +1,20 @@
-FROM alpine:3.8
+FROM alpine:latest
 
 
 # Default to UTF-8 file.encoding
 ENV LANG C.UTF-8
-
 # There might be newer builds, but not all are published (for apline) at: http://jdk.java.net/11/
 
 ENV JAVA_HOME="/jdk-11"
-ARG JDK_BUILD="28"
-ENV JDK_ARCHIVE="openjdk-11+${JDK_BUILD}_linux-x64-musl_bin.tar.gz"
-
-#RUN mkdir ${JAVA_HOME} && cd ${JAVA_HOME}
 
-RUN echo "Downloading ${JDK_ARCHIVE}"
-RUN wget https://download.java.net/java/early_access/alpine/${JDK_BUILD}/binaries/${JDK_ARCHIVE}
+RUN echo "Downloading jdk build"
+RUN wget http://drive.jku.at/ssf/s/readFile/share/8207/4867522971216226929/publicLink/openjdk-11-GA_linux-x64-musl_bin.tar.gz
 
 RUN echo "Downloading sha256 checksum"
-RUN wget https://download.java.net/java/early_access/alpine/${JDK_BUILD}/binaries/${JDK_ARCHIVE}.sha256
+RUN wget http://drive.jku.at/ssf/s/readFile/share/8208/-1932052387783488162/publicLink/openjdk-11-GA_linux-x64-musl_bin.tar.gz.sha256
 
+ENV JDK_ARCHIVE="openjdk-11-GA_linux-x64-musl_bin.tar.gz"
 RUN echo "Verify checksum"
-# Two spaces bewteen hash & filename, as the output of 'sha256sum openjdk-11-...tar.gz'
-RUN echo "  ${JDK_ARCHIVE}" >> ${JDK_ARCHIVE}.sha256
 RUN sha256sum -c ${JDK_ARCHIVE}.sha256
 
 RUN echo "Checksum is correct"
@@ -30,13 +24,11 @@ RUN echo "Extract JDK"
 RUN tar -xzf ${JDK_ARCHIVE}
 # Remove downlaoded files
 RUN rm ${JDK_ARCHIVE} ${JDK_ARCHIVE}.sha256 
-# Remove src.zip to reduce size
-RUN rm ${JAVA_HOME}/lib/src.zip
 
 ENV PATH=$PATH:${JAVA_HOME}/bin
 
-ENV JAVA_VERSION 11-ea+${JDK_BUILD}
-ENV JAVA_ALPINE_VERSION 11~${JDK_BUILD}-1
+ENV JAVA_VERSION 11-ea+28
+ENV JAVA_ALPINE_VERSION 11~28-1
 
 RUN echo $PATH
 

README.md

@@ -1,6 +1,10 @@
 # Java and Alpine Linux
-The Alpine JDK port is an unsupported release, which is why there are only early access builds currently.
-However, the release candidate with build version 28 was unchanged for the GA Release, so you can consider it as the *General-Availability Release*.
+The Alpine JDK port is an unsupported release, which is why there were only early access builds.
+The Dockerfile in this repo uses the last of these builds, but they are no longer hosted by [java.net](https://jdk.java.net/11/):
+> The Alpine Linux build previously available on this page was removed as of JDK 11 GA. It’s not production-ready because it hasn’t been tested thoroughly enough to be considered a GA build.
+
+Consider using one of the [OpenJDK images](https://hub.docker.com/_/openjdk) instead (e.g. `12-jdk-alpine`) or checkout the [Java12 branch](https://github.com/keckelt/openjdk11-alpine/tree/java12).
+
 
 The JDK port for the Alpine Linux distribution, and in particular the musl C library, is part of the [Portola Project](http://openjdk.java.net/projects/portola).
 

example/docker-compose.yml

@@ -3,8 +3,6 @@ services:
   jar_container:
     build:
       context: https://github.com/keckelt/openjdk11-alpine.git
-      args:
-        JDK_BUILD: 28
     volumes:
       - './hello_world.jar:/Main.jar'
     command: java -jar /Main.jar