if diff < 0 {
		diff = 0
	}
	for i := 0; i < diff; i++ {
		c.removeOldest()
	}
	c.size = size
	return diff
}

// Close destroys cleanup goroutine. To clean up the cache, run Purge() before Close().
// func (c *LRU[K, V]) Close() {
//	c.mu.Lock()
//	defer c.mu.Unlock()
//	select {
//	case <-c.done:
//		return
//	default:
//	}
//	close(c.done)
// }

        Did you *actually* encounter the need for this feature in a real-world scenario, or is it
        just a feature that seems like a sensible addition to Guava?


        Before new features get added to Guava, we really want to be sure that it's for a use case
        that actually comes up in the real world. We want to hear the real-world use case so the

    /**
     * Builder class for constructing SearchResult instances using the builder pattern.
     *
     * This builder provides a fluent interface for setting the various properties
     * of a SearchResult before creating the final immutable instance.
     */
    static class SearchResultBuilder {

        /** The total number of records that match the search criteria. */
        private long allRecordCount;

        assertTrue(buffer.length > 0, "Buffer size should be positive");
        assertTrue(buffer.length <= 0x100000, "Buffer size should not exceed 1MB");
    }

    /**
     * Test that releaseBuffer validates buffer before accepting it.
     */
    @Test
    public void testReleaseBufferValidation() {
        // Given - Various invalid buffers
        byte[] nullBuffer = null;
        byte[] wrongSizeBuffer = new byte[100]; // Wrong size

import (
	"bufio"
	"bytes"
	"fmt"
	"io"
	"net/http"
	"strings"
)

// newUnsignedV4ChunkedReader returns a new s3UnsignedChunkedReader that translates the data read from r
// out of HTTP "chunked" format before returning it.
// The s3ChunkedReader returns io.EOF when the final 0-length chunk is read.
func newUnsignedV4ChunkedReader(req *http.Request, trailer bool, signature bool) (io.ReadCloser, APIErrorCode) {
	if signature {

    }

    /**
     * Retrieves the character mapping file for the specified dictionary ID.
     * <p>
     * This method looks up the dictionary file and ensures it is a character mapping file
     * before returning it wrapped in an OptionalEntity.
     * </p>
     *
     * @param dictId the dictionary ID to retrieve the character mapping file for

fix. Even if you think it's relatively minor, it's helpful to know what people
are working on. And as mentioned above, API changes should be discussed
thoroughly before moving to code.

Some examples of types of pull requests that are immediately helpful:

  - Fixing a bug without changing a public API.
  - Fixing or improving documentation.
  - Improvements to Maven configuration.

  // TODO: Test waitFor(Guard, long, TimeUnit).
  // TODO: Test getQueueLength().
  // TODO: Test hasQueuedThreads().
  // TODO: Test getWaitQueueLength(Guard).
  // TODO: Test automatic signaling before leave, waitFor, and reentrant enterWhen.
  // TODO: Test blocking to re-enter monitor after being signaled.
  // TODO: Test interrupts with both interruptible and uninterruptible monitor.

///

/// note | 技术细节

你也可以使用 `from starlette.requests import Request`。

**FastAPI** 为了开发者方便提供了该对象，但它直接来自 Starlette。

///

### 在 `response` 之前与之后 { #before-and-after-the-response }

你可以在任何*路径操作*接收 `request` 之前，添加要与该 `request` 一起运行的代码。

也可以在生成 `response` 之后、返回之前添加代码。

例如，你可以添加一个自定义请求头 `X-Process-Time`，其值为处理请求并生成响应所花费的秒数：

import java.util.Date;
import java.util.Locale;
import java.util.TimeZone;

import org.codelibs.core.misc.LocaleUtil;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

/**
 * @author higa
 */
public class TimeConversionUtilTest {

    @Before
    public void setUp() throws Exception {
        LocaleUtil.setDefault(() -> Locale.JAPANESE);
    }

    @After