Deployement impossible on Websphere

I have a big problem with Websphere. When I try to deploy an update of my application, a error occured :

[09/08/11 11:19:19:240 CEST] 00000015 annotations E ArchiveInputStreamData iterate unable to process input stream

java.lang.ArrayIndexOutOfBoundsException at org.objectweb.asm.ClassReader.readClass(Unknown Source) at org.objectweb.asm.ClassReader.accept(Unknown Source) at org.objectweb.asm.ClassReader.accept(Unknown Source) at com.ibm.ws.amm.scan.util.ClassScanner.scanInputStream(ClassScanner.java:235) at com.ibm.ws.amm.AnnotativeMetadataManagerImpl$1.applyTo(AnnotativeMetadataManagerImpl.java:260) at com.ibm.wsspi.amm.scan.context.ArchiveInputStreamData.iterate(ArchiveInputStreamData.java:241) at com.ibm.ws.amm.AnnotativeMetadataManagerImpl.scan(AnnotativeMetadataManagerImpl.java:258) at com.ibm.ws.amm.AnnotativeMetadataManagerImpl.scan(AnnotativeMetadataManagerImpl.java:219) at com.ibm.ws.amm.commonarchive.AnnotationsProcessorImpl.merge(AnnotationsProcessorImpl.java:108) at org.eclipse.jst.j2ee.commonarchivecore.internal.impl.WARFileImpl开发者_如何学Go.processAnnotations(WARFileImpl.java:302) at org.eclipse.jst.j2ee.commonarchivecore.internal.impl.WARFileImpl.getDeploymentDescriptor(WARFileImpl.java:248) at org.eclipse.jst.j2ee.commonarchivecore.internal.impl.WARFileImpl.getDeploymentDescriptor(WARFileImpl.java:178) at com.ibm.websphere.management.application.AppDeploymentUtil.getModuleVersion(AppDeploymentUtil.java:1458) at com.ibm.websphere.management.application.AppDeploymentUtil.isEE5SchemaDD(AppDeploymentUtil.java:1419) at com.ibm.ws.management.application.client.AppInstallHelper.checkIfEE5ModulesContainXMIBindings(AppInstallHelper.java:1098) at com.ibm.ws.management.application.client.AppInstallHelper.checkIfEE5ModulesContainXMIBindings(AppInstallHelper.java:1063) at com.ibm.ws.management.application.client.AppInstallHelper.checkForEE5Restrictions(AppInstallHelper.java:324) at com.ibm.ws.management.application.client.AppInstallHelper.getAppDeploymentInfoGenericRead(AppInstallHelper.java:469) at com.ibm.ws.management.application.client.DefaultBindingHelper.getDefaultBindingInfo(DefaultBindingHelper.java:101) at com.ibm.ws.management.application.client.DefaultBindingHelper.getDefaultBindingInfo(DefaultBindingHelper.java:91) at com.ibm.ws.console.appmanagement.action.UploadAction.formUpload(UploadAction.java:491) at com.ibm.ws.console.appmanagement.action.UploadAction.execute(UploadAction.java:156) at org.apache.struts.action.RequestProcessor.processActionPerform(Unknown Source) at org.apache.struts.action.RequestProcessor.process(Unknown Source) at org.apache.struts.action.ActionServlet.process(Unknown Source) at org.apache.struts.action.ActionServlet.doPost(Unknown Source) at javax.servlet.http.HttpServlet.service(HttpServlet.java:738) at javax.servlet.http.HttpServlet.service(HttpServlet.java:831) at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1657) at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1597) at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:131) at com.ibm.ws.console.core.servlet.WSCUrlFilter.setUpCommandAssistence(WSCUrlFilter.java:933) at com.ibm.ws.console.core.servlet.WSCUrlFilter.continueStoringTaskState(WSCUrlFilter.java:500) at com.ibm.ws.console.core.servlet.WSCUrlFilter.doFilter(WSCUrlFilter.java:321) at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:188) at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:116) at com.ibm.ws.webcontainer.filter.WebAppFilterChain._doFilter(WebAppFilterChain.java:77) at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:908) at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:934) at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:502) at com.ibm.ws.webcontainer.servlet.ServletWrapperImpl.handleRequest(ServletWrapperImpl.java:179) at com.ibm.ws.webcontainer.servlet.CacheServletWrapper.handleRequest(CacheServletWrapper.java:91) at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:864) at com.ibm.ws.webcontainer.WSWebContainer.handleRequest(WSWebContainer.java:1583) at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:186) at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:452) at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRequest(HttpInboundLink.java:511) at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequest(HttpInboundLink.java:305) at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.ready(HttpInboundLink.java:276) at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.sendToDiscriminators(NewConnectionInitialReadCallback.java:214) at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.complete(NewConnectionInitialReadCallback.java:113) at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:165) at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217) at com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161) at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:138) at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:204) at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:775) at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:905) at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1604)+

I don't understand the origin of problem. No Jar is added. Only two functions have been added.

Do someone know why Websphere bugs?

A quick Google search found this IBM PMR which seems to be the same symptoms.

Ok, I found the problem... With WebSphere, the tags in the web.xml must be in a specific order. Indeed, my tag <welcome-file-list> was before the <servlet> and <servlet-mapping> tags. So I changed the order, and it's working...