If the nested type is a managed type (Gradle can generate its implementation), you can define a nested property with:
```
interface NestedType {
    Property<String> getSomeProperty()
}
class Example {
    @Nested
    NestedType getNestedProperty()
}
```

    }

    // Test evaluate method with nested expressions
    @Test
    public void test_evaluate_withNestedExpressions() {
        String template = "${level1.level2.value}";
        Map<String, Object> paramMap = new HashMap<>();
        Map<String, Object> level2 = new HashMap<>();
        level2.put("value", "nested");
        Map<String, Object> level1 = new HashMap<>();

<a href="fess-ingest-logger/" title="fess-ingest-logger/">fess-ingest-logger/</a>                                              -         -      
<a href="fess-ingest-ndjson/" title="fess-ingest-ndjson/">fess-ingest-ndjson/</a>                                              -         -      

                    return null;
                }

                // Check for nested map
                if (params.containsKey("nested") && params.get("nested") instanceof Map) {
                    @SuppressWarnings("unchecked")
                    Map<String, Object> nestedMap = (Map<String, Object>) params.get("nested");
                    if (nestedMap.containsKey("innerKey")) {

        assertEquals("s3://bucket/", wizardAction.convertCrawlingPath("s3://bucket/"));
        assertEquals("s3://my-bucket-name/deep/nested/path/file.txt",
                wizardAction.convertCrawlingPath("s3://my-bucket-name/deep/nested/path/file.txt"));
    }

    @Test
    public void test_convertCrawlingPath_gcs_protocol() {

    /**
     * The root of the user manual documentation.  This is the source of the adoc files.
     */
    public abstract DirectoryProperty getRoot();

    /**
     * Source of snippets that can be inserted into the user manual
     */
    public abstract DirectoryProperty getSnippets();

    /**
     * Working directory for staging directory for intermediate user manual files
     */

import org.gradle.api.DefaultTask;
import org.gradle.api.file.DirectoryProperty;
import org.gradle.api.provider.Property;
import org.gradle.api.tasks.Input;
import org.gradle.api.tasks.InputFiles;
import org.gradle.api.tasks.Nested;
import org.gradle.api.tasks.PathSensitive;
import org.gradle.api.tasks.PathSensitivity;
import org.gradle.api.tasks.TaskAction;
import org.gradle.deployment.internal.DeploymentRegistry;

    @Test
    public void test_jsonFormatter_nestedMap() {
        final Map<String, Object> source = new LinkedHashMap<>();
        final Map<String, Object> nested = new LinkedHashMap<>();
        nested.put("a", 1);
        nested.put("b", "text");
        source.put("meta", nested);

        final String json = new JsonIndexExportFormatter().format(source, Collections.emptySet());

        assertEquals(3.14, result.get("double"));
        assertEquals(false, result.get("boolean"));
        assertNull(result.get("null_value"));
        assertNotNull(result.get("nested"));
        assertEquals("nested_value", ((Map<String, Object>) result.get("nested")).get("nested_key"));
    }

    // Test interface contract consistency
    @Test
    public void test_interfaceContract() {

        }
    }

    @Test
    public void test_execute_withNestedBoostQuery() {
        // Test executing BoostQuery with another BoostQuery inside (nested boost)
        Term term = new Term("field", "nested");
        TermQuery termQuery = new TermQuery(term);
        BoostQuery innerBoostQuery = new BoostQuery(termQuery, 2.0f);
        BoostQuery outerBoostQuery = new BoostQuery(innerBoostQuery, 3.0f);