- Do not add trailing punctuation to headings.

### Quotes

- Keep quote style consistent with the existing Korean docs.
- Never change quotes inside inline code, code blocks, URLs, or file paths.

### Ellipsis

- Keep ellipsis style consistent with existing Korean docs (often `...`).
- Never change `...` in code, URLs, or CLI examples.

### Preferred translations / glossary

- If you translate a concept one way, keep it consistent across all occurrences.

### Links and references

- Never modify link syntax like `{.internal-link target=_blank}`.
- Keep markdown link structure intact: `[text](url){.internal-link}`.

### Preferred translations / glossary

Do not translate technical terms like path, route, request, response, query, body, cookie, and header, keep them as is.

    }

    @Keep
    protected void protectedOneArg(String s) {
      checkNotNull(s);
    }

    @Keep
    public void oneNullableArg(@Nullable String s) {}

    @Keep
    public void oneNullableArgThrows(@Nullable String s) {
      doThrow(s);
    }

    @Keep
    public void twoArg(String s, Integer i) {
      checkNotNull(s);
      i.intValue();
    }

    @Keep

### Quotes and punctuation

- Keep punctuation style consistent with existing Traditional Chinese docs (they often mix English terms like “FastAPI” with Chinese text).
- Never change punctuation inside inline code, code blocks, URLs, or file paths.
- For more details, please follow the [Chinese Copywriting Guidelines](https://github.com/sparanoid/chinese-copywriting-guidelines).

### Ellipsis

### Target language

Translate to Japanese (日本語).

Language code: ja.

### Grammar and tone

- Use polite, instructional Japanese (です/ます調).
- Keep the tone concise and technical (match existing Japanese FastAPI docs).

### Headings

- Follow the existing Japanese style: short, descriptive headings (often noun phrases), e.g. 「チェック」.
- Do not add a trailing period at the end of headings.

### Quotes

- For headings that are instructions written in imperative in English (e.g. `Go check …`), keep them in imperative in French, using the formal grammar (e.g. `Allez voir …`).

### French instructions about technical terms

Do not try to translate everything. In particular, keep common programming terms (e.g. `framework`, `endpoint`, `plug-in`, `payload`).

Keep class names, function names, modules, file names, and CLI commands unchanged.

          "woo.com.",
          "www",
          "x",
          ALMOST_TOO_LONG,
          ALMOST_TOO_MANY_LEVELS
          // keep-sorted end
          );

  private static final ImmutableSet<String> INVALID_NAME =
      ImmutableSet.of(
          // keep-sorted start
          " ",
          "",
          ".",
          "..",
          "...",
          "..bar.com",
          "..quiffle.com",

import com.google.common.collect.testing.features.FeatureUtilTest.ExampleFeature.NotTesterAnnotation;
import com.google.common.collect.testing.features.FeatureUtilTest.ExampleFeature.Require;
import com.google.errorprone.annotations.Keep;
import java.lang.annotation.Inherited;
import java.lang.annotation.Retention;
import java.lang.reflect.Method;
import java.util.Set;
import junit.framework.TestCase;

/**
 * @author George van den Driessche

    }

    @Keep
    public static final class DeterministicRandom extends Random {
      @Keep
      public DeterministicRandom() {
        super(0);
      }
    }

    @Keep
    public static final class DummyScheduledThreadPoolExecutor extends ScheduledThreadPoolExecutor {
      @Keep
      public DummyScheduledThreadPoolExecutor() {
        super(1);
      }
    }

    @Keep

    A;

    @Keep
    public void failToCheckNull(String s) {}
  }

  private interface AnInterface {}

  private abstract static class AnAbstractClass {
    @Keep
    public AnAbstractClass(String s) {}

    @Keep
    public void failsToCheckNull(String s) {}
  }

  private static class NoPublicStaticMethods {
    @Keep // To test non-public factory isn't used.