licenseUrl for "generate -l java" has no effect

Description

java -jar swagger-codegen-cli-3.0.35.jar config-help -l java
would suggest one can set the lisenceUrl

Swagger-codegen version

swagger-codegen-cli-3.0.35

Steps to reproduce

wget https://repo1.maven.org/maven2/io/swagger/codegen/v3/swagger-codegen-cli/3.0.35/swagger-codegen-cli-3.0.35.jar -O swagger-codegen-cli-3.0.35.jar

cat << EOF > swagger-codegen-config.json
{
  "licenseName": "GPL-v2.0",
  "licenseUrl": "https://choosealicense.com/licenses/gpl-2.0/",
  "java8": "true",
  "useGzipFeature": "true"
}
EOF

rm -rf tmp

java -jar swagger-codegen-cli-3.0.35.jar generate \
   -i https://petstore.swagger.io/v2/swagger.json \
   -l java \
   -DlicenseName="GPL-v2.0", \
   -DlicenseUrl="https://choosealicense.com/licenses/gpl-2.0/" \
   -c swagger-codegen-config.json \
   -o tmp
   
grep -m 1 -A 5 "<license>" tmp/pom.xml

yields:

 <license>
      <name>GPL-v2.0</name>
      <url>http://www.apache.org/licenses/LICENSE-2.0.html</url>
      <distribution>repo</distribution>
    </license>
  </licenses>

the URL is incorrect and not was specified via command-line or the config.

Start with the Java generator's handling of licenseName and licenseUrl, then trace how those values reach the generated pom.xml. Reproduce the issue with swagger-codegen-cli 3.0.35 using the command and configuration shown; done means the generated pom.xml contains the configured license URL instead of the Apache default.