diff --git a/adoptopenjdk.sh b/adoptopenjdk.sh
new file mode 100755
index 0000000..3b3ff70
--- /dev/null
+++ b/adoptopenjdk.sh
@@ -0,0 +1,50 @@
+#!/bin/bash
+# requires: wget, timeout, sha256sum, awk
+set -e
+
+BASE_PATH="${TUNASYNC_WORKING_DIR}"
+
+# 参数为版本，比如8,11等
+function downloadRelease() {
+  curl -s "https://api.adoptopenjdk.net/v2/latestAssets/releases/openjdk$1" | \
+    jq -r '.[]| [.version,.binary_type,.architecture,.os,.openjdk_impl,.binary_name,.binary_link,.checksum_link]| @tsv' | \
+    while IFS=$'\t' read -r version binary_type architecture os openjdk_impl binary_name binary_link checksum_link; do
+      mkdir -p "$BASE_PATH/$version/$binary_type/$architecture/$os/$openjdk_impl/" || true
+      dest_filename="$BASE_PATH/$version/$binary_type/$architecture/$os/$openjdk_impl/$binary_name"
+      declare downloaded=false
+      if [[ -f $dest_filename ]]; then
+        sha256sum_check && {
+          downloaded=true
+          echo "Skiping $binary_name"
+        }
+      fi
+      while [[ $downloaded != true ]]; do
+        rm ${dest_filename} ${dest_filename}.sha256.txt || true
+        timeout -s INT 300 wget ${WGET_OPTIONS:-} -q \
+          -O "${dest_filename}" \
+          "$binary_link"
+        timeout -s INT 300 wget ${WGET_OPTIONS:-} -q \
+          -O "${dest_filename}.sha256.txt" \
+          "$checksum_link"
+        sha256sum_check && {
+          downloaded=true
+        }
+      done
+    done
+}
+
+function sha256sum_check() {
+  expected=$(cat "${dest_filename}.sha256.txt" | awk '{print $1}')
+  actual=$(sha256sum "${dest_filename}" | awk '{print $1}')
+  if [ "$expected" = "$actual" ]; then
+    return 0
+  else
+    return 1
+  fi
+}
+
+for i in 8 11 13;
+do
+  downloadRelease $i
+done
+