The deployment of a .war using the latest version of the plugin, fails on WebLogic 12c (latest CPU). The job returns the following error message:

[WeblogicDeploymentPlugin] - Deploying the artifact on the following target : (name=HIDDEN) (host=HIDDEN) (port=7001)
[WeblogicDeploymentPlugin] - Executing task ...
java.lang.RuntimeException: task completed abnormally (exit code = 1). Check your Weblogic Deployment logs.
at org.jenkinsci.plugins.deploy.weblogic.task.DeploymentTaskServiceImpl.customize(DeploymentTaskServiceImpl.java:344)
at org.jenkinsci.plugins.deploy.weblogic.task.DeploymentTaskServiceImpl.perform(DeploymentTaskServiceImpl.java:182)
at org.jenkinsci.plugins.deploy.weblogic.WeblogicDeploymentPlugin.perform(WeblogicDeploymentPlugin.java:303)
at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:20)
at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:770)
at hudson.model.AbstractBuild$AbstractBuildExecution.performAllBuildSteps(AbstractBuild.java:734)
at hudson.model.Build$BuildExecution.post2(Build.java:183)
at hudson.model.AbstractBuild$AbstractBuildExecution.post(AbstractBuild.java:683)
at hudson.model.Run.execute(Run.java:1784)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
at hudson.model.ResourceController.execute(ResourceController.java:89)
at hudson.model.Executor.run(Executor.java:240)
ERROR: [WeblogicDeploymentPlugin] - Failed to deploy. Check your Weblogic deployment logs.
[INFO] ------------------------------------------------------------------------
[INFO] DEPLOYMENT FAILURE
[INFO] ------------------------------------------------------------------------
Build step 'Deploy the artifact to any WebLogic environments' changed build result to FAILURE
Finished: FAILURE

Under WebLogic deployment, the following error is returned for task execution:

weblogic.Deployer invoked with options: -adminurl t3://HIDDEN:7001 -username {wl.login} -start -name HIDDEN
java.lang.NoClassDefFoundError: weblogic/deploy/api/spi/DeploymentOptions
at weblogic.deploy.api.tools.deployer.Jsr88Operation.init(Jsr88Operation.java:70)
at weblogic.deploy.api.tools.deployer.Operation.(Operation.java:52)
at weblogic.deploy.api.tools.deployer.Operation.(Operation.java:47)
at weblogic.deploy.api.tools.deployer.Operation.(Operation.java:42)
at weblogic.deploy.api.tools.deployer.Jsr88Operation.(Jsr88Operation.java:55)
at weblogic.deploy.api.tools.deployer.StartOperation.(StartOperation.java:15)
at weblogic.deploy.api.tools.deployer.Deployer.newOperation(Deployer.java:217)
at weblogic.deploy.api.tools.deployer.Deployer.runBody(Deployer.java:86)
at weblogic.utils.compiler.Tool.run(Tool.java:159)
at weblogic.utils.compiler.Tool.run(Tool.java:116)
at weblogic.Deployer.run(Deployer.java:74)
at weblogic.Deployer.main(Deployer.java:55)
Caused by: java.lang.ClassNotFoundException: weblogic.deploy.api.spi.DeploymentOptions
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 12 more
weblogic/deploy/api/spi/DeploymentOptions

On additional classpath, I tried loading all 3 .jar's (one by one, or all 3), without any luck: 

• weblogic.jar
• wlthint3client.jar
• wlfullclient.jar

Replicated the problem against Java8 (144) , Java8 (131) and Java7 (75).