Hewlett-Packard’s legal team will have a hard time persuading a state court judge to stop former CEO Mark Hurd from becoming president of Oracle Corp., employment law experts said.

HP sued Hurd in Santa Clara County Superior Court on Tuesday, claiming that he violated a confidentiality provision of his severance agreement by accepting the post at Oracle. The company alleges that Hurd will have to divulge HP’s trade secrets at Oracle, and it wants an injunction to stop him from taking the job.