if you have spaces in your classpath entry and if you are trying to deploy weblogic through ant deploy task there can be issues like:
[wldeploy] javax.enterprise.deploy.spi.exceptions.DeploymentManagerCreationException[wldeploy] at weblogic.deploy.api.spi.deploy.WebLogicDeploymentManagerImpl.(WebLogicDeploymentManagerImpl.java:121)
To solve this, you will have to remove spaces from classpath.