Java NoSuchFieldError:HttpClient的实例

我使用HttpClient在RESTAPI上发布请求，如下所示

    HttpClient client = HttpClientBuilder.create().build();
    HttpPost post = new HttpPost(url);
    post.setHeader("Content-Type","application/json");
    post.addHeader("Authorization", "Bearer " +authToken);
    JSONObject json = new JSONObject();
    json.put("image_url", ");
    json.put("job_fqn","");
    JSONArray routesJsonArray = new JSONArray();
    routesJsonArray.put(0, "");
    json.put("routes",routesJsonArray);
    StringEntity params = new StringEntity(json.toString());
    post.setEntity(params);
    HttpResponse  response = client.execute(post);
    client.getConnectionManager().shutdown();

这给了我们一个机会

java.lang.NoSuchFieldError: INSTANCE

创建HTPClient对象时出错

我的pom文件包含

    <dependency>
        <groupId>org.apache.httpcomponents</groupId>
        <artifactId>httpclient</artifactId>
        <version>4.4.1</version>
    </dependency>

因为它是同一个版本，所以我认为它不应该引起版本冲突。我还缺什么吗

这是堆栈跟踪

[[ERROR] [06/30/2016 13:26:27.762] [-akka.actor.default-dispatcher-7] [ActorSystem(deployer)] Uncaught error from thread [-akka.actor.default-dispatcher-7] shutting down JVM since 'akka.jvm-exit-on-fatal-error' is enabled
java.lang.NoSuchFieldError: INSTANCE
    at org.apache.http.impl.io.DefaultHttpRequestWriterFactory.<init>(DefaultHttpRequestWriterFactory.java:52)
    at org.apache.http.impl.io.DefaultHttpRequestWriterFactory.<init>(DefaultHttpRequestWriterFactory.java:56)
    at org.apache.http.impl.io.DefaultHttpRequestWriterFactory.<clinit>(DefaultHttpRequestWriterFactory.java:46)
    at org.apache.http.impl.conn.ManagedHttpClientConnectionFactory.<init>(ManagedHttpClientConnectionFactory.java:72)
    at org.apache.http.impl.conn.ManagedHttpClientConnectionFactory.<init>(ManagedHttpClientConnectionFactory.java:84)
    at org.apache.http.impl.conn.ManagedHttpClientConnectionFactory.<clinit>(ManagedHttpClientConnectionFactory.java:59)
    at org.apache.http.impl.conn.PoolingHttpClientConnectionManager$InternalConnectionFactory.<init>(PoolingHttpClientConnectionManager.java:493)
    at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.<init>(PoolingHttpClientConnectionManager.java:149)
    at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.<init>(PoolingHttpClientConnectionManager.java:138)
    at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.<init>(PoolingHttpClientConnectionManager.java:114)
    at org.apache.http.impl.client.HttpClientBuilder.build(HttpClientBuilder.java:726)

[[ERROR][06/30/2016 13:26:27.762][akka.actor.default-dispatcher-7][ActorSystem（deployer）]线程[-akka.actor.default-dispatcher-7]未捕获错误关闭JVM，因为启用了“akka.JVM退出致命错误”
java.lang.NoSuchFieldError:实例
位于org.apache.http.impl.io.DefaultHttpRequestWriterFactory。（DefaultHttpRequestWriterFactory.java:52）
位于org.apache.http.impl.io.DefaultHttpRequestWriterFactory。（DefaultHttpRequestWriterFactory.java:56）
位于org.apache.http.impl.io.DefaultHttpRequestWriterFactory。（DefaultHttpRequestWriterFactory.java:46）
位于org.apache.http.impl.conn.ManagedHttpClientConnectionFactory。（ManagedHttpClientConnectionFactory.java:72）
位于org.apache.http.impl.conn.ManagedHttpClientConnectionFactory。（ManagedHttpClientConnectionFactory.java:84）
位于org.apache.http.impl.conn.ManagedHttpClientConnectionFactory。（ManagedHttpClientConnectionFactory.java:59）
位于org.apache.http.impl.conn.PoolightPClientConnectionManager$InternalConnectionFactory。（PoolightPClientConnectionManager.java:493）
位于org.apache.http.impl.conn.PoolighttpClientConnectionManager。（PoolighttpClientConnectionManager.java:149）
位于org.apache.http.impl.conn.PoolighttpClientConnectionManager。（PoolighttpClientConnectionManager.java:138）
位于org.apache.http.impl.conn.PoolighttpClientConnectionManager。（PoolighttpClientConnectionManager.java:114）
位于org.apache.http.impl.client.HttpClientBuilder.build（HttpClientBuilder.java:726）

---

当我试图到达HttpClientBuilderClass的第726行时，我看不到builder方法？类结束于第431行！

请发布完整的堆栈跟踪和错误消息，并指出哪一行抛出它。您可能引用了一个不在那里的字段，但我们无法确定，因为您没有向我们显示所有代码这就是所有代码，对不起，你说的是哪个字段？@Sontirios，谢谢，我刚刚发布了stac traceThat，它似乎是指

basiclineformter#INSTANCE

，它应该在httpcore中。请在运行时检查类路径中是否有正确版本的库。请发布完整的堆栈跟踪和错误消息，并指出是哪个版本h line抛出了它。你可能引用了一个不在那里的字段，但我们无法确定，因为你没有向我们展示所有的代码。这就是所有的代码，很抱歉，但你说的是哪个字段？baout？@Sontirios，谢谢，我刚刚发布了stac Traceth，它似乎指的是

Basiclineformter#INSTANCE

，应该在ht中在运行时检查类路径中是否有正确版本的库。

[[ERROR] [06/30/2016 13:26:27.762] [-akka.actor.default-dispatcher-7] [ActorSystem(deployer)] Uncaught error from thread [-akka.actor.default-dispatcher-7] shutting down JVM since 'akka.jvm-exit-on-fatal-error' is enabled
java.lang.NoSuchFieldError: INSTANCE
    at org.apache.http.impl.io.DefaultHttpRequestWriterFactory.<init>(DefaultHttpRequestWriterFactory.java:52)
    at org.apache.http.impl.io.DefaultHttpRequestWriterFactory.<init>(DefaultHttpRequestWriterFactory.java:56)
    at org.apache.http.impl.io.DefaultHttpRequestWriterFactory.<clinit>(DefaultHttpRequestWriterFactory.java:46)
    at org.apache.http.impl.conn.ManagedHttpClientConnectionFactory.<init>(ManagedHttpClientConnectionFactory.java:72)
    at org.apache.http.impl.conn.ManagedHttpClientConnectionFactory.<init>(ManagedHttpClientConnectionFactory.java:84)
    at org.apache.http.impl.conn.ManagedHttpClientConnectionFactory.<clinit>(ManagedHttpClientConnectionFactory.java:59)
    at org.apache.http.impl.conn.PoolingHttpClientConnectionManager$InternalConnectionFactory.<init>(PoolingHttpClientConnectionManager.java:493)
    at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.<init>(PoolingHttpClientConnectionManager.java:149)
    at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.<init>(PoolingHttpClientConnectionManager.java:138)
    at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.<init>(PoolingHttpClientConnectionManager.java:114)
    at org.apache.http.impl.client.HttpClientBuilder.build(HttpClientBuilder.java:726)