mrroth commented on issue #8469:
URL: https://github.com/apache/pulsar/issues/8469#issuecomment-1335752527
I believe we are seeing the same issue in Pulsar 2.10.2 (Docker):
```bash
pulsar-admin --admin-url $ADMIN_URL --auth-plugin $AUTH_PLUGIN --auth-params
$AUTH_TOKEN functions create \
--classname com.example.MyFunction \
--tenant mytenant \
--namespace mynamespace \
--inputs persistent://mytenant/mynamespace/mytopic \
--jar file:///functions/myfunction-0.1.0.jar \
--output persistent://mytenant/mynamespace/mytopic \
--name myfunction \
--parallelism 5 \
--retain-key-ordering \
--window-length-duration-ms 1000 \
--user-config '{"hello":"world"}'
2022-12-02T19:33:27,575+0000 [AsyncHttpClient-7-1] WARN
org.apache.pulsar.client.admin.internal.BaseResource -
[http://pulsar-broker.pulsar.svc.cluster.local:8080/admin/v3/functions/mytenant/mynamespace/myfunction]
Failed to perform http post request: javax.ws.rs.BadRequestException: HTTP 400
Bad Request
Cannot load from object array because "typeArgs" is null
Reason: Cannot load from object array because "typeArgs" is null
```
I see the same outcome if I use `--window-length-count`. If I remove the
`--window-length-duration-ms` option, it works.
```
Created successfully
```
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