I am using a wsdl2java generated web service client for the axis2 web service (axis2 version is 1.6.1). So for http connection the old version of commons-httpclient 3.1 is used. While doing some load tests to my web service client. In some cases i came across this exception
org.apache.axis2.AxisFault: org.apache.axiom.ext.io.StreamCopyException: Error reading from source
at org.apache.axis2.AxisFault.makeFault(AxisFault.java:430)
at com.ardic.arcsp.carbon.registry.ws.stub.WSStorageServiceStub.fromOM(WSStorageServiceStub.java:16706)
at com.ardic.arcsp.carbon.registry.ws.stub.WSStorageServiceStub.wSgetById(WSStorageServiceStub.java:6659)
at com.ardic.arcsp.update.wsclient.WSStorageServiceClient.getResourceById(WSStorageServiceClient.java:177)
at com.ardic.arcsp.update.wsclient.OTAUpdateTestServlet.downloadResource(OTAUpdateTestServlet.java:162)
at com.ardic.arcsp.update.wsclient.OTAUpdateTestServlet.doGet(OTAUpdateTestServlet.java:91)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at sun.reflect.GeneratedMethodAccessor30.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:273)
at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:270)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAsPrivileged(Subject.java:517)
at org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:305)
at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:165)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:298)
at org.apache.catalina.core.ApplicationFilterChain.access$000(ApplicationFilterChain.java:57)
at org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:189)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:164)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:462)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.wso2.carbon.server.CarbonStuckThreadDetectionValve.invoke(CarbonStuckThreadDetectionValve.java:154)
at org.wso2.carbon.server.TomcatServer$1.invoke(TomcatServer.java:254)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:563)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:399)
at org.apache.coyote.http11.Http11NioProcessor.process(Http11NioProcessor.java:396)
at org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:356)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1534)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:705)
Caused by: org.apache.axiom.om.OMException: org.apache.axiom.ext.io.StreamCopyException: Error reading from source
at org.apache.axiom.attachments.impl.PartFactory.createPart(PartFactory.java:172)
at org.apache.axiom.attachments.Attachments.getPart(Attachments.java:705)
at org.apache.axiom.attachments.Attachments.getNextPartDataHandler(Attachments.java:623)
at org.apache.axiom.attachments.Attachments.getDataHandler(Attachments.java:350)
at org.apache.axiom.om.impl.builder.OMAttachmentAccessorMimePartProvider.getDataHandler(OMAttachmentAccessorMimePartProvider.java:45)
at org.apache.axiom.util.stax.xop.XOPDecodingStreamReader$DataHandlerProviderImpl.getDataHandler(XOPDecodingStreamReader.java:81)
at org.apache.axiom.util.stax.xop.XOPDecodingStreamReader.getDataHandler(XOPDecodingStreamReader.java:472)
at org.apache.axiom.om.impl.SwitchingWrapper.getDataHandler(SwitchingWrapper.java:1360)
at org.apache.axiom.util.stax.XMLStreamReaderUtils.getDataHandlerFromElement(XMLStreamReaderUtils.java:230)
at com.ardic.arcsp.carbon.registry.ws.stub.xsd.WSResource$Factory.parse(WSResource.java:2087)
at com.ardic.arcsp.carbon.registry.ws.stub.WSgetByIdResponse$Factory.parse(WSgetByIdResponse.java:417)
at com.ardic.arcsp.carbon.registry.ws.stub.WSStorageServiceStub.fromOM(WSStorageServiceStub.java:16273)
... 37 more
Caused by: org.apache.axiom.ext.io.StreamCopyException: Error reading from source
at org.apache.axiom.attachments.utils.BAAOutputStream.readFrom(BAAOutputStream.java:114)
at org.apache.axiom.attachments.impl.BufferUtils.inputStream2OutputStream(BufferUtils.java:76)
at org.apache.axiom.attachments.impl.PartFactory.createPart(PartFactory.java:136)
... 48 more
Caused by: java.io.IOException: CRLF expected at end of chunk: 116/161
at org.apache.commons.httpclient.ChunkedInputStream.readCRLF(ChunkedInputStream.java:207)
at org.apache.commons.httpclient.ChunkedInputStream.nextChunk(ChunkedInputStream.java:219)
at org.apache.commons.httpclient.ChunkedInputStream.read(ChunkedInputStream.java:176)
at java.io.FilterInputStream.read(FilterInputStream.java:116)
at org.apache.commons.httpclient.AutoCloseInputStream.read(AutoCloseInputStream.java:108)
at java.io.FilterInputStream.read(FilterInputStream.java:116)
at org.apache.axiom.om.util.DetachableInputStream.read(DetachableInputStream.java:147)
at java.io.FilterInputStream.read(FilterInputStream.java:116)
at java.io.PushbackInputStream.read(PushbackInputStream.java:169)
at org.apache.axiom.attachments.BoundaryPushbackInputStream.readFromStream(BoundaryPushbackInputStream.java:114)
at org.apache.axiom.attachments.BoundaryPushbackInputStream.read(BoundaryPushbackInputStream.java:248)
at org.apache.axiom.attachments.MIMEBodyPartInputStream.read(MIMEBodyPartInputStream.java:87)
at org.apache.axiom.attachments.utils.BAAOutputStream.readFrom(BAAOutputStream.java:112)
... 50 more
The web service client request files from the server and downloads the file. These exceptions occurs on the response while receiving files in chunks. While searching i came across this fix mentioned here. https://issues.apache.org/jira/browse/HTTPCORE-190
However the exceptions still occur. So what else can cause this exceptions?
UPDATE:
Ok, i got the real reason for exception.On the client side if the memory allocation for jvm is low, the response from the server cannot be processed due to SocketTimeOut. But the exception itself could not stress this. Increasing the heap on the client side can solve the problem temporary.
