Using this xml definition in a jboss.xml throws the exception below...

<jboss xmlns="http://www.jboss.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.jboss.com/xml/ns/javaee
http://www.jboss.org/j2ee/schema/jboss_5_1.xsd"
version="5.1">
...
</jboss>

ERROR [AbstractKernelController] Error installing to Parse: name=vfszip:/home/jboss-as/server/active/deploy/example.ear/ state=PreParse mode=Manual requiredState=Parse
org.jboss.deployers.spi.DeploymentException: Error creating managed object for vfszip:/home/boss-as/server/active/deploy/example.ear/example-ejb.jar/
at org.jboss.deployers.spi.DeploymentException.rethrowAsDeploymentException(DeploymentException.java:49)
at org.jboss.deployers.spi.deployer.helpers.AbstractParsingDeployerWithOutput.createMetaData(AbstractParsingDeployerWithOutput.java:362)
at org.jboss.deployers.spi.deployer.helpers.AbstractParsingDeployerWithOutput.createMetaData(AbstractParsingDeployerWithOutput.java:322)
at org.jboss.deployers.spi.deployer.helpers.AbstractParsingDeployerWithOutput.createMetaData(AbstractParsingDeployerWithOutput.java:294)
at org.jboss.deployment.JBossEjbParsingDeployer.createMetaData(JBossEjbParsingDeployer.java:95)
...
Caused by: java.lang.Exception: The xml example.ear/example-ejb.jar/META-INF/jboss.xml is not well formed!
at org.jboss.xb.util.JBossXBHelper.parse(JBossXBHelper.java:191)
at org.jboss.xb.util.JBossXBHelper.parse(JBossXBHelper.java:166)
at org.jboss.deployers.vfs.spi.deployer.SchemaResolverDeployer.parse(SchemaResolverDeployer.java:137)
at org.jboss.deployers.vfs.spi.deployer.SchemaResolverDeployer.parse(SchemaResolverDeployer.java:121)
at org.jboss.deployers.vfs.spi.deployer.AbstractVFSParsingDeployer.parseAndInit(AbstractVFSParsingDeployer.java:304)
at org.jboss.deployers.vfs.spi.deployer.AbstractVFSParsingDeployer.parseAndInit(AbstractVFSParsingDeployer.java:286)
at org.jboss.deployers.vfs.spi.deployer.AbstractVFSParsingDeployer.parse(AbstractVFSParsingDeployer.java:203)
at org.jboss.deployers.spi.deployer.helpers.AbstractParsingDeployerWithOutput.createMetaData(AbstractParsingDeployerWithOutput.java:348)
... 30 more