Classcast Exception while deploying an ear file in jboss 5.1.0 -------------------------------------------------------------- Key: JBCL-180 URL: https://issues.jboss.org/browse/JBCL-180 Project: JBoss ClassLoader Issue Type: Bug Components: ClassLoader, MetaData Reporter: suresh kumar Assignee: Ales Justin Priority: Blocker When we tried to migrate our application from jboss-3.2.7 to jboss-5.1.0, we faced this issue.Basically in our application, we have an EAR file packaged with couple of WAR files and a SAR file along with META-INF directory. While deploying the EAR file under server\default\deploy directory, we are getting the below error.Our application do not useany EJB related stuffs. Basically,this error is thrown when we have an SAR file and WAR files packaged together in an EAR file. Caused by: java.lang.ClassCastException: org.jboss.metadata.ear.jboss.ServiceModuleMetaData cannot be cast to org.jboss.metadata.ear.spec.WebModuleMetaData at org.jboss.web.deployers.AbstractWarDeployer.deploy(AbstractWarDeployer.java:327) at org.jboss.web.deployers.AbstractWarDeployer.deploy(AbstractWarDeployer.java:97) at org.jboss.deployers.spi.deployer.helpers.AbstractSimpleRealDeployer.internalDeploy(Abstra ctSimpleRealDeployer.java:62) at org.jboss.deployers.spi.deployer.helpers.AbstractRealDeployer.deploy(AbstractRealDeployer .java:50) at org.jboss.deployers.plugins.deployers.DeployerWrapper.deploy(DeployerWrapper.java:171) ... 30 more -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.jboss.org/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira