diff --git a/tools/unix-ci/before-install.sh b/tools/unix-ci/before-install.sh
index 9f35cc8c55..7145a9de42 100755
--- a/tools/unix-ci/before-install.sh
+++ b/tools/unix-ci/before-install.sh
@@ -10,14 +10,6 @@ CURL="curl --retry 999 --retry-max-time 0"
 
 function install_android_sdk()
 {
-    # the since openjdk is free, refer to: https://openjdk.java.net/
-    # download page: https://jdk.java.net/17/
-    echo "Installing openjdk17 ..."
-    curl https://download.java.net/java/GA/jdk17.0.2/dfd4a8d0985749f896bed50d7138ee7f/8/GPL/openjdk-17.0.2_linux-x64_bin.tar.gz -o ./openjdk-17.0.2_linux-x64_bin.tar.gz
-    tar xzvf openjdk-17.0.2_linux-x64_bin.tar.gz
-    export JAVA_HOME=`pwd`/jdk-17.0.2
-    export PATH="$JAVA_HOME:$PATH"
-
     echo "Installing android ndk ..."
     # sudo curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
     # sudo python get-pip.py