Hi There, Need some direction with the following production issue.
In our production, recently we hit the well-known connection CLOSE_WAIT issue with axis21.3 stand-alone client on Linux. (http://issues.apache.org/jira/browse/AXIS2-2945) We noticed that this bug has been fixed in axis21.5.1 version. So, we did upgrade to axis2 1.5.1 and added stub._getServiceClient.cleanupTrasport() statement after service call. Everything went fine but suddenly today, the process threw NPE while cleaning up transport. The exception stack trace is as follows. Exception in thread "Timer-0" java.lang.NullPointerException at org.apache.commons.httpclient.HttpMethodBase.responseBodyConsumed(HttpMethodBase.java:2405) at org.apache.commons.httpclient.HttpMethodBase$1.responseConsumed(HttpMethodBase.java:1892) at org.apache.commons.httpclient.AutoCloseInputStream.notifyWatcher(AutoCloseInputStream.java:198) at org.apache.commons.httpclient.AutoCloseInputStream.close(AutoCloseInputStream.java:158) at org.apache.commons.httpclient.HttpMethodBase.releaseConnection(HttpMethodBase.java:1181) at org.apache.axis2.transport.http.CommonsHTTPTransportSender.cleanup(CommonsHTTPTransportSender.java:84) at org.apache.axis2.client.ServiceClient.cleanupTransport(ServiceClient.java:824) at com.telcordia.sirgpd.driver.titan.v_6_5.TitanNormalizedDriver.sendBatch(TitanNormalizedDriver.java:181) at com.telcordia.sirgpd.driver.titan.v_6_5.TitanNormalizedDriver.batch(TitanNormalizedDriver.java:133) at com.telcordia.sirgpd.common.Distributor.batch(Distributor.java:93) at com.telcordia.sirgpd.common.OutputQConsumerTask.processOutputQData(OutputQConsumerTask.java:250) at com.telcordia.sirgpd.common.OutputQConsumerTask.run(OutputQConsumerTask.java:376) at java.util.TimerThread.mainLoop(Unknown Source) at java.util.TimerThread.run(Unknown Source) I am puzzled how the connection got closed (by OS?) to cause nullpointerexception. Any inputs are highly appreciated. Thanks, Sam
