public void setPrincipals(java.util.Collection<String> principals) {
        if (principals == null) {
            this.principals = null;
            return;
        }

        this.principals = new java.util.ArrayList<String>(principals);
    }
<p>
A list of principals to grant permissions on.
</p>

@param principals
       A list of principals to grant permissions on.
aws-java-sdk-quicksight/src/main/java/com/amazonaws/services/quicksight/model/AssetBundleResourcePermissions.java