/etc/jetty9/contexts/ is in solr-jetty 3.6.2+dfsg-11.
This file is owned by root:root, with mode 0o755.
| File | Mime Type | Owner | Mode | Size | 
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    ..
    
        
    
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    /etc/jetty9/contexts/solr.xml
    
        
    
 | root:root | 0o777 |