Use NOT-APPLICABLE for unknown info

maven/lib/dependabot/maven/file_parser.rb

@@ -63,30 +63,18 @@ def ecosystem
       sig { returns(Ecosystem::VersionManager) }
       def package_manager
         @package_manager ||= T.let(
-          PackageManager.new(maven_version),
+          PackageManager.new("NOT-AVAILABLE"),
           T.nilable(Dependabot::Maven::PackageManager)
         )
       end
 
       sig { returns(T.nilable(Ecosystem::VersionManager)) }
       def language
         @language ||= T.let(begin
-          return if package_manager.unsupported?
-
-          Language.new(ruby_version)
+          Language.new("NOT-AVAILABLE")
         end, T.nilable(Dependabot::Maven::Language))
       end
 
-      sig { returns(String) }
-      def ruby_version
-        @ruby_version ||= T.let(RUBY_VERSION, T.nilable(String))
-      end
-
-      sig { returns(String) }
-      def maven_version
-        ""
-      end
-
       sig { params(pom: Dependabot::DependencyFile).returns(DependencySet) }
       def pomfile_dependencies(pom)
         dependency_set = DependencySet.new

maven/lib/dependabot/maven/package_manager.rb

@@ -12,7 +12,7 @@ module Maven
     PACKAGE_MANAGER = "maven"
 
     # Supported versions specified here: https://maven.apache.org/docs/history.html
-    SUPPORTED_MAVEN_VERSIONS = T.let([Version.new("3.6.3")].freeze, T::Array[Dependabot::Version])
+    SUPPORTED_MAVEN_VERSIONS = T.let([Version.new("3")].freeze, T::Array[Dependabot::Version])
 
     # When a version is going to be unsupported, it will be added here
     DEPRECATED_MAVEN_VERSIONS = T.let([].freeze, T::Array[Dependabot::Version])
@@ -35,6 +35,16 @@ def initialize(raw_version, requirement = nil)
           requirement,
         )
       end
+
+      sig { returns(T::Boolean) }
+      def deprecated?
+        false
+      end
+
+      sig { returns(T::Boolean) }
+      def unsupported?
+        false
+      end
     end
   end
 end