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java.net.SocketException: 打开的文件过多	at java.net.Socket.createImpl(Socket.java:447)	at java.net.Socket.(Socket.java:421)	at java.net.Socket.(Socket.java:280)	at org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:80)	at org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:122)	at org.apache.commons.httpclient.HttpConnection.open(HttpConnection.java:707)	at org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:387)	at org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:171)	at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:397)	at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:323)	at com.cognos.pogo.http.ServerConnection.executeMethodSynchronously(ServerConnection.java:826)	at com.cognos.pogo.http.ServerConnection.executeMethod(ServerConnection.java:778)