java.lang.IllegalStateException:管理器是来自DefaultHttpClient的关闭异常

我正在使用DefaultHttpClient实例执行HttpPost，并在收到响应后使用它

具体如下。（这是一个运行时异常）

但我还是有例外

java.lang.IllegalStateException: Manager is shut down.
        at org.apache.http.impl.conn.SingleClientConnManager.assertStillUp(SingleClientConnManager.java:175)
        at org.apache.http.impl.conn.SingleClientConnManager.getConnection(SingleClientConnManager.java:209)
        at org.apache.http.impl.conn.SingleClientConnManager$1.getConnection(SingleClientConnManager.java:190)
        at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:391)
        at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:820)
        at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:754)
        at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:732)
        at com.pixalate.etl.adserver.appnexus.api.AppNexusApiManager.executeRequest(AppNexusApiManager.java:374)

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您能提供完整的堆栈跟踪吗？假设从代码段的第一行引发异常，在执行此代码之前，您似乎需要查看m_httpClient发生了什么。即使出现上述异常，m_httpClient也有价值。我正在记录器中跟踪它的价值。而且异常不会很快发生。我启动我的应用程序。如果我长时间运行，比如说一天，它会发生的。在那之后，它会不断地到来。

java.lang.IllegalStateException: Manager is shut down.
        at org.apache.http.impl.conn.SingleClientConnManager.assertStillUp(SingleClientConnManager.java:175)
        at org.apache.http.impl.conn.SingleClientConnManager.getConnection(SingleClientConnManager.java:209)
        at org.apache.http.impl.conn.SingleClientConnManager$1.getConnection(SingleClientConnManager.java:190)
        at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:391)
        at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:820)
        at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:754)
        at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:732)
        at com.pixalate.etl.adserver.appnexus.api.AppNexusApiManager.executeRequest(AppNexusApiManager.java:374)