+ <jetty.version>9.4.14.v20181114</jetty.version>
+ <jetty.websocket.version>8.2.0.v20160908</jetty.websocket.version>
+ <javax.mail-api.version>1.5.5</javax.mail-api.version>
+ <dom4j.version>2.1.1</dom4j.version>
+ <xml-apis.version>1.4.01</xml-apis.version>
+ <thoughtworks.version>1.4.10</thoughtworks.version>
+ <google.guava.version>26.0-jre</google.guava.version>
+ <qos.logback.version>1.2.3</qos.logback.version>