#Apache OpenWhisk runtimes for java 
Give it a try today
To use as a docker action
bx wsk action update myAction myAction.jar --docker openwhisk/java8action:1.0.0
This works on any deployment of Apache OpenWhisk
To use on deployment that contains the rutime as a kind
To use as a kind action
bx wsk action update myAction myAction.jar --kind java:8
Local development
./gradlew core:javaAction:distDocker
This will produce the image whisk/java8action
Build and Push image
docker login ./gradlew core:javaAction:distDocker -PdockerImagePrefix=$prefix-user -PdockerRegistry=docker.io
Deploy OpenWhisk using ansible environment that contains the kind java:8 Assuming you have OpenWhisk already deploy localy and OPENWHISK_HOME pointing to root directory of OpenWhisk core repository.
Set ROOTDIR to the root directory of this repository.
Redeploy OpenWhisk
cd $OPENWHISK_HOME/ansible
ANSIBLE_CMD="ansible-playbook -i ${ROOTDIR}/ansible/environments/local"
$ANSIBLE_CMD setup.yml
$ANSIBLE_CMD couchdb.yml
$ANSIBLE_CMD initdb.yml
$ANSIBLE_CMD wipe.yml
$ANSIBLE_CMD openwhisk.yml
Or you can use wskdev and create a soft link to the target ansible environment, for example:
ln -s ${ROOTDIR}/ansible/environments/local ${OPENWHISK_HOME}/ansible/environments/local-java
wskdev fresh -t local-java
To use as docker action push to your own dockerhub account
docker tag whisk/java8action $user_prefix/java8action docker push $user_prefix/java8action
Then create the action using your the image from dockerhub
wsk action update myAction myAction.jar --docker $user_prefix/java8action
The $user_prefix is usually your dockerhub user id.