```bash
cd src/main/resources

# Copy label file (~1,056 translation entries)
cp fess_label_en.properties fess_label_[your_locale].properties

# Copy message file (~200 translation entries)
cp fess_message_en.properties fess_message_[your_locale].properties
```

**Example for Swedish (`sv`):**
```bash
cp fess_label_en.properties fess_label_sv.properties
cp fess_message_en.properties fess_message_sv.properties
```

src/main/resources/
├── fess_config.properties     # Main configuration
├── app.xml, fess.xml          # DI configuration
├── fess_*.xml                 # Feature-specific DI
├── fess_label_*.properties    # UI labels (i18n)
├── fess_message_*.properties  # Validation messages (i18n)
└── fess_indices/              # OpenSearch index mappings

src/main/webapp/WEB-INF/view/  # JSP templates

Shinsuke Sugaya <******@****.***> 1774698853 +0900

 */
package org.codelibs.fess.mylasta.action;

import org.lastaflute.core.message.UserMessages;

/**
 * The keys for message.
 * @author FreeGen
 */
public class FessLabels extends UserMessages {

    /** The serial version UID for object serialization. (Default) */
    private static final long serialVersionUID = 1L;

    /** The key of the message: Realm */

        assertEquals("{labels.excludedDocPaths}", FessLabels.LABELS_EXCLUDED_DOC_PATHS);
        assertEquals("{labels.excludedDocUrls}", FessLabels.LABELS_EXCLUDED_DOC_URLS);
        assertEquals("{labels.hostname}", FessLabels.LABELS_HOSTNAME);
        assertEquals("{labels.id}", FessLabels.LABELS_ID);
        assertEquals("{labels.includedPaths}", FessLabels.LABELS_INCLUDED_PATHS);

Shinsuke Sugaya <******@****.***> 1774698853 +0900

Shinsuke Sugaya <******@****.***> 1774698853 +0900

Shinsuke Sugaya <******@****.***> 1774698853 +0900

Shinsuke Sugaya <******@****.***> 1774698853 +0900

Shinsuke Sugaya <******@****.***> 1774698853 +0900