}

    /**
     * Increases the indentation level for nested logging.
     */
    public void indent() {
        indentLevel++;
    }

    /**
     * Decreases the indentation level for nested logging.
     */
    public void unindent() {
        if (indentLevel > 0) {
            indentLevel--;
        }
    }

    /**
     * Sets the indentation string to use (e.g., "  ", "    ", "\t").
     */

        return render("");
    }

    public String render(String indentation) {
        if (messages.isEmpty()) {
            return indentation + "There were no validation errors.";
        }

        StringBuilder message = new StringBuilder();
        for (int i = 0; i < messages.size(); i++) {
            message.append(indentation)
                    .append('[')
                    .append(i)

                sb.append(indentation);
                sb.append("Try downloading the file manually from: ");
                sb.append(LS);
                sb.append(indentation);
                sb.append("    ");
                sb.append(downloadUrl);
            } else {
                sb.append(LS);
                sb.append(LS);
                sb.append(indentation);

        }
    }

    @Nested
    @DisplayName("XML Formatting")
    class XmlFormattingTests {

        @Test
        @DisplayName("should format pluginManagement with proper indentation")
        void shouldFormatPluginManagementWithProperIndentation() throws Exception {
            String pomXml = """
                <?xml version="1.0" encoding="UTF-8"?>

class ArtifactResolutionExceptionTest {
    private static final String LS = System.lineSeparator();

    @Test
    void testMissingArtifactMessageFormat() {
        String message = "Missing artifact";
        String indentation = "  ";
        String groupId = "aGroupId";
        String artifactId = "anArtifactId";
        String version = "aVersion";
        String type = "jar";
        String classifier = "aClassifier";

        context.action("Test action message");
    }

    @Test
    @DisplayName("should handle indentation correctly")
    void shouldHandleIndentationCorrectly() {
        UpgradeContext context = TestUtils.createMockContext(Paths.get("/test"));

        // Test indentation methods don't throw exceptions
        context.indent();
        context.indent();
        context.info("Indented message");

    public void write(Writer writer, CoreExtensions coreExtensions) throws IOException {
        XmlSerializer serializer = new MXSerializer();
        serializer.setProperty("http://xmlpull.org/v1/doc/properties.html#serializer-indentation", "  ");
        serializer.setProperty("http://xmlpull.org/v1/doc/properties.html#serializer-line-separator", "\n");
        serializer.setOutput(writer);
        serializer.startDocument(coreExtensions.getModelEncoding(), null);

You can write <a href="https://en.wikipedia.org/wiki/Markdown" class="external-link" target="_blank">Markdown</a> in the docstring, it will be interpreted and displayed correctly (taking into account docstring indentation).

{* ../../docs_src/path_operation_configuration/tutorial004_py310.py hl[17:25] *}

It will be used in the interactive docs:

<img src="/img/tutorial/path-operation-configuration/image02.png">

* «X is case-insensitive»: «Groß-/Klein­schrei­bung ist nicht relevant in X»
* «standard Python»: «Standard-Python»
* «deprecated»: «deprecatet»


### Other rules

- `DefaultContentsParserTest` - Text processing pipeline

---

## Code Conventions

### Java Style

- **Formatter**: Eclipse formatter at `src/config/eclipse/formatter/java.xml`
- **Indentation**: 4 spaces (no tabs)
- **Line Length**: 140 characters max
- **License Headers**: Required (use `mvn license:format`)

### Naming Conventions

| Type | Convention | Example |
|------|-----------|---------|