Installation Issue cannot find symbol class WriteListener

[Thanatoast]

mvn package returns the following 3 times:
[WARNING] /home/randm/git/conkw/src/java/src/main/java/net/pieroxy/conkw/utils/prefixeddata/PrefixedKeyMap.java:[6,46] sun.reflect.generics.reflectiveObjects.NotImplementedException is internal proprietary API and may be removed in a future release
and the following:

[ERROR] /home/randm/git/conkw/src/java/src/main/java/net/pieroxy/conkw/webapp/Filter.java:[141,34] cannot find symbol
  symbol:   class WriteListener
  location: class net.pieroxy.conkw.webapp.MyServletOutputStream

To Reproduce
I had to install maven, ant, and a few java packages to remove other errors (missing javadoc, bad JAVA_HOME, etc issues)
Finally only got the above issues when running 'mvn package'

Hoping for a successful (and useable) install.

Desktop:
I am using MX Linux: MX-23.3 "Libretto":
Kernel: 6.1.0-25-amd64 [6.1.106-3] arch: x86_64 bits: 64 compiler: gcc v: 12.2.0

Installed packages include:
ant 1.10.13-1
ant-contrib 1.0-b3+svn177-12
ant-optional 1.10.13-1
default-jdk-headless 2:1.17-74
default-jre 2:1.17-74
default-jre-headless 2:1.17-74
java-common 0.74
maven 3.8.7-1
maven-ant-helper 8.7
openjdk-17-jre 17.0.12+7-2-deb12u1
openjdk-17-jre-headless 17.0.12+7-2-deb12u1

Sorry I gave a ton of information, hopefully it is enough of the right information.
Thanks!