Java Documentation | Bitbucket
The Coherent Datafeed: Thomson Reuters Edition will write log messages to a file named “cdatafeed-tre.log” and this file will appear in the user’s home directory — for example on Windows 7 the file may be located as we have it below, for the user named “Bob Smith”:
C:/Users/bobsmith/cdatafeed-tre.log
The log file can be helpful when investigating a problem with the datafeed package.