解决这个问题的方法是使用URLEncoder类手动编码重定向的URL。下面是一个示例代码：

import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import java.io.IOException;
import java.net.URLEncoder;

public class HttpClientRedirectExample {
    public static void main(String[] args) {
        CloseableHttpClient httpClient = HttpClients.createDefault();
        try {
            // 需要编码的URL
            String redirectUrl = "http://example.com/redirect?url=http://example.com/some%20path";

            // 手动编码重定向URL
            String encodedUrl = URLEncoder.encode(redirectUrl, "UTF-8");

            // 创建HTTP GET请求
            HttpGet httpGet = new HttpGet(encodedUrl);

            // 发送请求并获取响应
            CloseableHttpResponse response = httpClient.execute(httpGet);

            // 处理响应...

            // 关闭响应和HTTP客户端
            response.close();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                httpClient.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
}

在上面的示例中，重定向URL被手动编码为http%3A%2F%2Fexample.com%2Fredirect%3Furl%3Dhttp%3A%2F%2Fexample.com%2Fsome%2520path，然后使用HttpGet发送请求。这样可以确保重定向URL在被解析时不会自动解码。