OIM API - Code Snippet to Revoke Entity from Current Publications(Organizations).

public void revokeEntityFromCurrentPublications(String entityKey, String type){
    final String logp = CN + " :: revokeEntityFromCurrentPublications - ";
    LOGGER.debug(logp + "START");
    EntityPublicationService entityPubService = null;
   
    try {
        entityPubService = Platform.getService(EntityPublicationService.class);
   
        PolicyConstants.Resources resourceType = null;

        if("Entitlement".equalsIgnoreCase(type)){
            resourceType = PolicyConstants.Resources.IT_RESOURCE_ENTITLEMENT;
        }else if("Application Instance".equalsIgnoreCase(type)) {
            resourceType = PolicyConstants.Resources.APPLICATION_INSTANCE;
        }else{
            LOGGER.error(logp + "Invalid entity type - " + type);
            throw new Exception("Invalid entity type - " + type);
        }
       
        //get current publications
        List<EntityPublication> currentPubList = entityPubService.listEntityPublications(resourceType, entityKey, null);
        LOGGER.info(logp + "Obtained current publications for entity " + entityName + " - " + currentPubList);

        //Revoke entity from current publications
        entityPubService.removeEntityPublications(currentPubList);
        LOGGER.debug(logp + "Successfully removed entity from current publications");

    }catch(Exception e){
        LOGGER.error(logp + "Exception while revoking entity from current publications");
    }

    LOGGER.debug(logp + "END");
}

Happy Learning!!!