license_finder falls over on com.sun.xml.ws:policy:2.7.10 ( "Undefined prefix Xlint found" )

[knoxg]

( license_finder version 7.2.1 )

My maven project references com.sun.xml.ws:policy:2.7.10 , which breaks license_finder with the stack trace.

/usr/lib/ruby/gems/3.0.0/gems/rexml-3.2.5/lib/rexml/parsers/baseparser.rb:403:in `block in pull_event': Undefined prefix Xlint found (REXML::UndefinedNamespaceException)
        from /usr/lib/ruby/3.0.0/set.rb:344:in `each_key'
        from /usr/lib/ruby/3.0.0/set.rb:344:in `each'
        from /usr/lib/ruby/gems/3.0.0/gems/rexml-3.2.5/lib/rexml/parsers/baseparser.rb:401:in `pull_event'
        from /usr/lib/ruby/gems/3.0.0/gems/rexml-3.2.5/lib/rexml/parsers/baseparser.rb:183:in `pull'
        from /usr/lib/ruby/gems/3.0.0/gems/rexml-3.2.5/lib/rexml/parsers/treeparser.rb:23:in `parse'
        from /usr/lib/ruby/gems/3.0.0/gems/rexml-3.2.5/lib/rexml/document.rb:448:in `build'
        from /usr/lib/ruby/gems/3.0.0/gems/rexml-3.2.5/lib/rexml/document.rb:101:in `initialize'
        from /var/lib/gems/3.0.0/gems/xml-simple-1.1.9/lib/xmlsimple.rb:979:in `new'
        from /var/lib/gems/3.0.0/gems/xml-simple-1.1.9/lib/xmlsimple.rb:979:in `parse'
        from /var/lib/gems/3.0.0/gems/xml-simple-1.1.9/lib/xmlsimple.rb:164:in `xml_in'
        from /var/lib/gems/3.0.0/gems/xml-simple-1.1.9/lib/xmlsimple.rb:203:in `xml_in'
        from /var/lib/gems/3.0.0/gems/license_finder-7.2.1/lib/license_finder/package_utils/maven_dependency_finder.rb:45:in `add_info_from_pom'
        from /var/lib/gems/3.0.0/gems/license_finder-7.2.1/lib/license_finder/package_utils/maven_dependency_finder.rb:40:in `add_info_from_m2'
        from /var/lib/gems/3.0.0/gems/license_finder-7.2.1/lib/license_finder/package_utils/maven_dependency_finder.rb:21:in `block in dependencies'
        from /var/lib/gems/3.0.0/gems/license_finder-7.2.1/lib/license_finder/package_utils/maven_dependency_finder.rb:21:in `each'
        from /var/lib/gems/3.0.0/gems/license_finder-7.2.1/lib/license_finder/package_utils/maven_dependency_finder.rb:21:in `dependencies'
        from /var/lib/gems/3.0.0/gems/license_finder-7.2.1/lib/license_finder/package_managers/maven.rb:27:in `current_packages'
        from /var/lib/gems/3.0.0/gems/license_finder-7.2.1/lib/license_finder/package_manager.rb:105:in `current_packages_with_relations'
        from /var/lib/gems/3.0.0/gems/license_finder-7.2.1/lib/license_finder/scanner.rb:42:in `each'
        from /var/lib/gems/3.0.0/gems/license_finder-7.2.1/lib/license_finder/scanner.rb:42:in `flat_map'
        from /var/lib/gems/3.0.0/gems/license_finder-7.2.1/lib/license_finder/scanner.rb:42:in `active_packages'
        from /var/lib/gems/3.0.0/gems/license_finder-7.2.1/lib/license_finder/core.rb:84:in `current_packages'
        from /var/lib/gems/3.0.0/gems/license_finder-7.2.1/lib/license_finder/core.rb:79:in `decision_applier'
        from /usr/lib/ruby/3.0.0/forwardable.rb:232:in `acknowledged'
        from /var/lib/gems/3.0.0/gems/license_finder-7.2.1/lib/license_finder/license_aggregator.rb:51:in `block in aggregate_packages'
        from /var/lib/gems/3.0.0/gems/license_finder-7.2.1/lib/license_finder/license_aggregator.rb:49:in `each'
        from /var/lib/gems/3.0.0/gems/license_finder-7.2.1/lib/license_finder/license_aggregator.rb:49:in `flat_map'
        from /var/lib/gems/3.0.0/gems/license_finder-7.2.1/lib/license_finder/license_aggregator.rb:49:in `aggregate_packages'
        from /var/lib/gems/3.0.0/gems/license_finder-7.2.1/lib/license_finder/license_aggregator.rb:11:in `dependencies'
        from /var/lib/gems/3.0.0/gems/license_finder-7.2.1/lib/license_finder/cli/main.rb:161:in `report'
        from /var/lib/gems/3.0.0/gems/thor-1.3.1/lib/thor/command.rb:28:in `run'
        from /var/lib/gems/3.0.0/gems/thor-1.3.1/lib/thor/invocation.rb:127:in `invoke_command'
        from /var/lib/gems/3.0.0/gems/thor-1.3.1/lib/thor.rb:527:in `dispatch'
        from /var/lib/gems/3.0.0/gems/thor-1.3.1/lib/thor/base.rb:584:in `start'
        from /var/lib/gems/3.0.0/gems/license_finder-7.2.1/bin/license_finder:6:in `<top (required)>'
        from /usr/local/bin/license_finder:25:in `load'
        from /usr/local/bin/license_finder:25:in `<main>

It appears the XmlSimple parser is failing to parse this chunk of XML in the pom.xml file:

                    <compilerArguments>
                        <Xlint:all/>
                    </compilerArguments>

presumably because Xlint:all looks like an element with an XML namespace.

I worked around this by pre-processing the pom.xml file in my build script and removed the colon:

sed -i 's/Xlint:all/Xlint/g' /root/.m2/repository/com/sun/xml/ws/policy/2.7.10/policy-2.7.10.pom

but this is less than ideal.

Would be great if license_finder handled this pom.xml correctly.