"name" field

Hey, just wondering if I can use the "name" field in grok patterns. when I use it, the error appears to be like this:

["Error"], "id"=>"692aaaf9cd6aedfa9e73788106ef94fc1d968d10a1586c197812a6e14d84010a"}]=>[{"thread_id"=>25, "name"=>"[main]>worker0", "current_call"=>"[...]/logstash-core/lib/logstash/java_pipeline.rb:243:in `block in start_workers'"}, {"thread_id"=>26, "name"=>"[main]>worker1", "current_call"=>"[...]/logstash-core/lib/logstash/java_pipeline.rb:243:in `block in start_workers'"}, {"thread_id"=>27, "name"=>"[main]>worker2", "current_call"=>"[...]/logstash-core/lib/logstash/java_pipeline.rb:243:in `block in start_workers'"}, {"thread_id"=>28, "name"=>"[main]>worker3", "current_call"=>"[...]/logstash-core/lib/logstash/java_pipeline.rb:243:in `block in start_workers'"}]}}

Is the field "name" reserved? Thanks in advance!