Support '.' to '-' conversion in 'moduleNamePrefixToGroup'

This is useful for projects that use different 'groups' for different
Modules that are all subprojects of the same Gradle build.

Author: jjohannes

src/main/java/org/gradlex/javamodule/dependencies/JavaModuleDependenciesExtension.java

@@ -148,14 +148,31 @@ private Provider<String> mapByPrefix(Provider<String> moduleName) {
                             .filter(e -> moduleName.get().startsWith(e.getKey())).findFirst();
                     if (prefixToGroup.isPresent()) {
                         String group = prefixToGroup.get().getValue();
-                        String artifact = moduleName.get().substring(prefixToGroup.get().getKey().length());
+                        String artifact = toProjectName(moduleName.get().substring(prefixToGroup.get().getKey().length()));
                         return group + ":" + artifact;
                     }
                     return null;
                 }
         );
     }
 
+    private String toProjectName(String moduleNameSuffix) {
+        List<String> allProjectNames = getProject().getRootProject().getSubprojects().stream().map(Project::getName).collect(Collectors.toList());
+
+        Optional<String> perfectMatch = allProjectNames.stream().filter(p -> p.replace("-", ".").equals(moduleNameSuffix)).findFirst();
+        Optional<String> existingProjectName = allProjectNames.stream().filter(p -> moduleNameSuffix != null && moduleNameSuffix.startsWith(p.replace("-", ".") + "."))
+                .max(Comparator.comparingInt(String::length));
+
+        if (perfectMatch.isPresent()) {
+            return perfectMatch.get();
+        } else if (existingProjectName.isPresent()) {
+            String capabilityClassifier = moduleNameSuffix.substring(existingProjectName.get().length() + 1).replace(".", "-");
+            return existingProjectName.get() + "|" + capabilityClassifier; // no exact match (assume last segment is capability)
+        }
+
+        return moduleNameSuffix;
+    }
+
     public Provider<Dependency> create(String moduleName, SourceSet sourceSetWithModuleInfo) {
         return getProviders().provider(() -> {
             Map<String, String> allProjectNamesAndGroups = getProject().getRootProject().getSubprojects().stream().collect(