log
[ 74s] [ERROR] /home/abuild/rpmbuild/BUILD/apache-ftpserver-1.1.4/core/src/main/java/org/apache/ftpserver/impl/FtpIoSession.java:[61,8] org.apache.ftpserver.impl.FtpIoSession is not abstract and does not override abstract method isServer() in org.apache.mina.core.session.IoSession
log [ 74s] [ERROR] /home/abuild/rpmbuild/BUILD/apache-ftpserver-1.1.4/core/src/main/java/org/apache/ftpserver/impl/FtpIoSession.java:[61,8] org.apache.ftpserver.impl.FtpIoSession is not abstract and does not override abstract method isServer() in org.apache.mina.core.session.IoSession
apacha-mina :2.0.24 mina-ftpserver:1.1.4
https://github.com/apache/mina/commit/e4cc18ee634f70b6cc163c1af569a04598c5f0d0