The "clean" target of the TC build file leaves "output\jdbc-pool" directory. This is because the "clean" target first deletes the output dir [1] but then calls the jdbc "clean" script [2] which recreates the directory in the "output" location [3]. Why would [3] be called as part of a "clean" script?
Since this is really a small issue, do you want BZ issue submitted or someone can address it as a regular cleanup. [1] http://svn.apache.org/viewvc/tomcat/tc8.5.x/trunk/build.xml?view=markup#l2582 [2] http://svn.apache.org/viewvc/tomcat/tc8.5.x/trunk/build.xml?view=markup#l2587 [3] http://svn.apache.org/viewvc/tomcat/tc8.5.x/trunk/modules/jdbc-pool/build.xml?view=markup#l215
