A subscription via the REST client to e.g. http://localhost:8080/GnuRadio/Acquisition?contentType=application%2Fjson&channelNameFilter=test arrives at the worker as subscription to "GnuRadio/Acquisition", i.e. the query parameters are lost. The client then never receives any data, if the worker doesn't receive any more specific requests for specific signals, or all the data that other clients happen to subscribe to.
A subscription via the REST client to e.g.
http://localhost:8080/GnuRadio/Acquisition?contentType=application%2Fjson&channelNameFilter=testarrives at the worker as subscription to "GnuRadio/Acquisition", i.e. the query parameters are lost. The client then never receives any data, if the worker doesn't receive any more specific requests for specific signals, or all the data that other clients happen to subscribe to.