func restQueries(keys ...string) []string {
	var accumulator []string
	for _, key := range keys {
		accumulator = append(accumulator, key, "{"+key+":.*}")
	}
	return accumulator
}

// Suffix returns the longest common suffix of the provided strings
func lcpSuffix(strs []string) string {
	return lcp(strs, false)
}

func lcp(strs []string, pre bool) string {
	// short-circuit empty list
	if len(strs) == 0 {

- Use `OptionalEntity<T>` for nullable returns
- Plain classes (no extends/implements)

### Helper
- Stateless utility classes
- Access via `ComponentUtil.getXyzHelper()`
- Named with "Helper" suffix

### DBFlute Generated Code
```
opensearch/{index}/
├── bsentity/, bsbhv/    # Base classes (DO NOT EDIT)
├── exentity/, exbhv/    # Extended classes (customize here)

							<div class="alert alert-info">${msg}</div>
						</la:info>
						<la:errors header="errors.front_header"
							footer="errors.front_footer" prefix="errors.front_prefix"
							suffix="errors.front_suffix" />
					</div>
					<fieldset>
						<legend><la:message key="labels.search" /></legend>
						<div class="clearfix">
							<div class="mx-auto col-10 col-sm-8 col-md-8 col-lg-6">

                super.parseProjectProperties(propFile.toPath());
            }

            @Override
            public File createTempFile(String prefix, String suffix) {
                try {
                    File tempFile = File.createTempFile(prefix, suffix);
                    tempFile.deleteOnExit();
                    return tempFile;
                } catch (IOException e) {
                    throw new RuntimeException(e);

                super.parseProjectProperties(propFile.toPath());
            }

            @Override
            public File createTempFile(String prefix, String suffix) {
                try {
                    File tempFile = File.createTempFile(prefix, suffix);
                    tempFile.deleteOnExit();
                    return tempFile;
                } catch (IOException e) {
                    throw new RuntimeException(e);

import okio.BufferedSink
import okio.ByteString
import okio.ByteString.Companion.encodeUtf8
import okio.FileSystem
import okio.Path
import okio.Path.Companion.toPath
import okio.buffer

/**
 * Downloads the public suffix list from https://publicsuffix.org/list/public_suffix_list.dat and
 * transforms the file into an efficient format used by OkHttp.
 *
 *

    public void test_getNameFromClassName() {
        final TestSearcher searcher = new TestSearcher();
        assertEquals("test", searcher.getName());
    }

    /**
     * Test getName() removes "Searcher" suffix.
     */
    @Test
    public void test_getNameRemovesSearcherSuffix() {
        final CustomSearcher searcher = new CustomSearcher();
        assertEquals("custom", searcher.getName());
    }

    /**

                    i++;
                }
            }
        }

        return false;
    }

    /**
     * Perform DNS SRV lookup on successively shorter suffixes of name
     * and return successful suffix or throw an UnknownHostException.
     * import javax.naming.*;
     * import javax.naming.directory.*;
     * public static String getDomainByName(String name) throws UnknownHostException {
     * DirContext context;

     *
     * @param prefix The prefix for the file name.
     * @param suffix The suffix for the file name.
     * @return The created temporary file.
     * @throws IORuntimeException if the file cannot be created.
     */
    public File createTempFile(final String prefix, final String suffix) {
        try {
            final File file = File.createTempFile(prefix, suffix);
            file.setReadable(false, false);

    private static class TestSystemHelper extends SystemHelper {
        File tempFile;

        @Override
        public File createTempFile(String prefix, String suffix) {
            try {
                tempFile = File.createTempFile(prefix, suffix);
                tempFile.deleteOnExit();
                return tempFile;
            } catch (IOException e) {
                throw new RuntimeException(e);
            }