public void setTags(java.util.Collection<Tag> tags) {
        if (tags == null) {
            this.tags = null;
            return;
        }

        this.tags = new java.util.ArrayList<Tag>(tags);
    }
<p>
One or more tags.
</p>
<p>
If the plan is for an existing provisioned product, the product must have a <code>RESOURCE_UPDATE</code>
constraint with <code>TagUpdatesOnProvisionedProduct</code> set to <code>ALLOWED</code> to allow tag updates.
</p>

@param tags
       One or more tags.</p>
       <p>
       If the plan is for an existing provisioned product, the product must have a <code>RESOURCE_UPDATE</code>
       constraint with <code>TagUpdatesOnProvisionedProduct</code> set to <code>ALLOWED</code> to allow tag
       updates.
aws-java-sdk-servicecatalog/src/main/java/com/amazonaws/services/servicecatalog/model/CreateProvisionedProductPlanRequest.java