return new ByteArrayInputStream(xml.getBytes(StandardCharsets.UTF_8));
    }

    @Test
    void testEmptyDescriptor() throws Exception {
        String xml = "<extension></extension>";

        ExtensionDescriptor ed = builder.build(toStream(xml));

        assertNotNull(ed);
        assertNotNull(ed.getExportedPackages());
        assertTrue(ed.getExportedPackages().isEmpty());
        assertNotNull(ed.getExportedArtifacts());

                }
            }

            discoverPluginComponents(extensionRealm, plugin, pluginDescriptor);

            ExtensionDescriptor extensionDescriptor = null;
            Artifact extensionArtifact = artifacts.get(0);
            try {
                extensionDescriptor = extensionDescriptorBuilder.build(extensionArtifact.getFile());
            } catch (IOException e) {