[GUACAMOLE-734] Update logback-classic version

• Type: Improvement
• Status: Resolved
• Priority: Trivial
• Resolution: Implemented
• Fix Version/s: 1.2.0
• Component/s: guacamole-client
• Assignee: Nick Couchman
• Reporter: Kaifeng Huang
• Created: 15/Feb/19 09:25
• Updated: 28/Feb/19 03:40
• Resolved: 17/Feb/19 22:50

Description

The version of logback-classic currently referenced by the guacamole pom.xml is relatively old and should be updated to the latest version, assuming doing so does not break logging. There are bug reports associated with the 1.1.2 version currently used by Guacamole, however it's unlikely that those bugs actually have any impact on Guacamole users:

Issue	Description
LOGBACK-1008	ConfigurationDelegate.groovy should check AppenderAttachable not AsyncAppender
LOGBACK-1054	NullPointerException from RollingFileAppender