return project.getTasks().register(PLUGIN_UNDER_TEST_METADATA_TASK_NAME, PluginUnderTestMetadata.class, pluginUnderTestMetadataTask -> {
            pluginUnderTestMetadataTask.setGroup(PLUGIN_DEVELOPMENT_GROUP);
            pluginUnderTestMetadataTask.setDescription(PLUGIN_UNDER_TEST_METADATA_TASK_DESCRIPTION);

        PluginDescriptor pluginDescriptor = new PluginDescriptor();

        pluginDescriptor.setSource(source);
        pluginDescriptor.setGroupId(extractGroupId(c));
        pluginDescriptor.setArtifactId(extractArtifactId(c));
        pluginDescriptor.setVersion(extractVersion(c));
        pluginDescriptor.setGoalPrefix(extractGoalPrefix(c));

            delegate.description = description
        }

        override fun getGroup(): Any {
            onAccess("group")
            return delegate.group
        }

        override fun setGroup(group: Any) {
            onAccess("group")
            delegate.group = group
        }

        override fun getVersion(): Any {
            onAccess("version")
            return delegate.version

Method <org.gradle.external.javadoc.StandardJavadocDocletOptions.getGroups()> does not have raw return type assignable to org.gradle.api.provider.Property in (StandardJavadocDocletOptions.java:0)