[jira] [Created] (SOLR-15813) Can't select my schema in Schema Designer in Admin UI: String cannot be cast to Boolean

["Simone (Jira)" <ji...@apache.org>]

Simone created SOLR-15813:
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             Summary: Can't select my schema in Schema Designer in Admin UI: String cannot be cast to Boolean
                 Key: SOLR-15813
                 URL: https://issues.apache.org/jira/browse/SOLR-15813
             Project: Solr
          Issue Type: Bug
      Security Level: Public (Default Security Level. Issues are Public)
          Components: Admin UI
    Affects Versions: 8.11
            Reporter: Simone


I can't select my schema in _Schema Designer_ tab in {_}Admin UI{_}.

It happens only when I disable automatic field guessing (according to [this syntax|[https://solr.apache.org/guide/8_11/schemaless-mode.html#disabling-automatic-field-guessing])] (reported in the code snippet below)

The following errors are logged:
 * [{_}Annotated Api{_}]: Error executing command
 * [{_}HttpSolrCall{_}]: {_}java.lang.ClassCastException{_}: class _java.lang.String_ cannot be cast to class _java.lang.Boolean_ ({_}java.lang.String{_} and _java.lang.Boolean_ are in module _java.base_ of loader 'bootstrap')

I can reproduce the bug with an example configuration:
{code:java}
./bin/solr start -e cloud -noprompt

./bin/solr config -c gettingstarted -p 8983 -action set-user-property -property update.autoCreateFields -value false

{code}
Replacing _false_ with "{_}false{_}" (with quotes) doesn't change the final result.



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