anchor.diff:  
     tomcat7 = common {
       versionMajor = "7";
  -    versionMinor = "0.70";
  -    sha256 = "0x4chqb7kkmadmhf2hlank856hw2vpgjl14fak74ybimlcb3dwqk";
  +    versionMinor = "0.72";
  +    sha256 = "1nx5pmz3bq3n20fdspqh8ljqy1nj67rwi1vsqjpkrvd996x7p73p";
     };
   
     tomcat8 = common {
  
positive.code:     versionMinor = "5.5";
      sha256 = "0idfxjrw5q45f531gyjnv6xjkbj9nhy2v1w4z7558z96230a0fqj";
    };
    
    tomcatUnstable = common {
      versionMajor = "9";
      versionMinor = "0.0.M10";
      sha256 = "0p3pqwz9zjvr9w73divsyaa53mbazf0icxfs06wvgxsvkbgj5gq9";
    };
    
  }
  
negative.code:         mkdir -p $webapps/webapps
          mv $out/webapps $webapps/
        '';
  
      meta = {
        homepage = https://tomcat.apache.org/;
        description = "An implementation of the Java Servlet and JavaServer Pages technologies";
  