Added 'Zulu JDK' as overlay bundle.

src/.config

@@ -156,6 +156,8 @@ OVERLAY_TYPE=folder
 # util_linux     - executable utilities distributed by the Linux Kernel org.
 # vim            - advanced text editor.
 # zlib           - DEFLATE compression/decompression library.
+# zulujdk        - Zulu is certified build of OpenJDK with better support.
+
 #
 # Refer to the README file for more information.
 #

src/README

@@ -133,6 +133,11 @@ Currently available overlay bundles:
 
   ZLIB           - software library used for data compression.
 
+  Zulu JDK       - Zulu is an enterprise quality, certified build of OpenJDK
+                   that can be deployed on multiple platforms. Zulu is free to
+                   download, use and redistribute. This overlay bundle requires
+                   GLIBC and ZLIB.
+
 The overlay bundles can be found in this directory:
 
   minimal_overlay/bundles

src/minimal_overlay/bundles/zulujdk/.config

@@ -0,0 +1,5 @@
+# You can find the latest Open JDK archives here:
+#
+#   http://jdk.java.net/9
+#
+ZULUJDK_URL=http://cdn.azul.com/zulu/bin/zulu10.2+3-jdk10.0.1-linux_x64.tar.gz

src/minimal_overlay/bundles/zulujdk/01_get.sh

@@ -0,0 +1,38 @@
+#!/bin/sh
+
+set -e
+
+. ../../common.sh
+
+# Read the common configuration properties.
+DOWNLOAD_URL=`read_property ZULUJDK_URL`
+USE_LOCAL_SOURCE=`read_property USE_LOCAL_SOURCE`
+
+# Grab everything after the last '/' character.
+ARCHIVE_FILE=${DOWNLOAD_URL##*/}
+
+if [ "$USE_LOCAL_SOURCE" = "true" -a ! -f $MAIN_SRC_DIR/source/overlay/$ARCHIVE_FILE ] ; then
+  echo "Bundle $MAIN_SRC_DIR/source/overlay/$ARCHIVE_FILE is missing and will be downloaded."
+  USE_LOCAL_SOURCE="false"
+fi
+
+cd $MAIN_SRC_DIR/source/overlay
+
+if [ ! "$USE_LOCAL_SOURCE" = "true" ] ; then
+  # Downloading Zulu JDK bundle file. The '-c' option allows the download to resume.
+  echo "Downloading Zulu JDK bundle from $DOWNLOAD_URL"
+  wget -c $DOWNLOAD_URL
+else
+  echo "Using local Zulu JDK bundle $MAIN_SRC_DIR/source/overlay/$ARCHIVE_FILE"
+fi
+
+# Delete folder with previously extracted Felix.
+echo "Removing Zulu JDK work area. This may take a while."
+rm -rf $WORK_DIR/overlay/$BUNDLE_NAME
+mkdir $WORK_DIR/overlay/$BUNDLE_NAME
+
+# Extract Zulu JDK to folder 'work/overlay/zulujdk'.
+# Full path will be something like 'work/overlay/zulujdk/jdk-9'.
+tar -xvf $ARCHIVE_FILE -C $WORK_DIR/overlay/$BUNDLE_NAME
+
+cd $SRC_DIR

src/minimal_overlay/bundles/zulujdk/02_install.sh

@@ -0,0 +1,28 @@
+#!/bin/sh
+
+set -e
+
+. ../../common.sh
+
+cd $WORK_DIR/overlay/$BUNDLE_NAME
+mv `ls -d *` $BUNDLE_NAME
+
+mkdir opt
+mv zulujdk opt
+
+mkdir $WORK_DIR/overlay/$BUNDLE_NAME/bin
+cd $WORK_DIR/overlay/$BUNDLE_NAME/bin
+
+for FILE in $(ls ../opt/$BUNDLE_NAME/bin)
+do
+  ln -s ../opt/$BUNDLE_NAME/bin/$FILE $FILE
+done
+
+# With '--remove-destination' all possibly existing soft links in
+# '$OVERLAY_ROOTFS' will be overwritten correctly.
+cp -r --remove-destination $WORK_DIR/overlay/$BUNDLE_NAME/* \
+  $OVERLAY_ROOTFS
+
+echo "Zulu JDK has been installed."
+
+cd $SRC_DIR

src/minimal_overlay/bundles/zulujdk/bundle.sh

@@ -0,0 +1,10 @@
+#!/bin/sh
+
+set -e
+
+. ../../common.sh
+
+./01_get.sh
+./02_install.sh
+
+cd $SRC_DIR

src/minimal_overlay/bundles/zulujdk/bundle_deps

@@ -0,0 +1,2 @@
+glibc_full
+zlib