diff --git a/bin/install-java.sh b/bin/install-java.sh
new file mode 100755
index 0000000..99bb741
--- /dev/null
+++ b/bin/install-java.sh
@@ -0,0 +1,10 @@
+#!/bin/bash
+set -ex
+export ADOPTOPENJDK=${JAVA_VERSION:-8}
+curl -sL https://get.sdkman.io | bash
+echo sdkman_auto_answer=true > $HOME/.sdkman/etc/config
+source "$HOME/.sdkman/bin/sdkman-init.sh"
+sdk install java $(sdk list java | grep -o "$ADOPTOPENJDK\.[0-9\.]*hs-adpt" | head -1)
+unset JAVA_HOME
+java -Xmx32m -version
+git fetch --tags