JBoss multiple ear files

i hope both A.ear and B.ear  have different contexts;then u can access

A.ear as http://localhost:8080/A
B.ear as http://localhost:8080/B

for a.ear application.xml should be like this
 
<?xml version="1.0" encoding="UTF-8"?>
<application xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="1.4" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/application_1_4.xsd">
  <display-name>a</display-name>
    <web>
      <web-uri>web.war</web-uri>
      <context-root>/A</context-root>
    </web>
  </module>
    <ejb>a.jar</ejb>
  </module>
</application>
..............................
 
for b.ear application.xml should be like this
 
<?xml version="1.0" encoding="UTF-8"?>
<application xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="1.4" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/application_1_4.xsd">
  <display-name>b</display-name>
    <web>
      <web-uri>web.war</web-uri>
      <context-root>/B</context-root>
    </web>
  </module>
    <ejb>b.jar</ejb>
  </module>
</application>

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How are you verifying that your ear "does not work" ? Do you see any errors in logs ?

I know it does not work because when I start JBoss I get the following error message:
org.jboss.deployment.DeploymentException: Trying to install an already registered mbean: jboss.jca:name=jca/JETI/Adapter,service=TxCM

so you have deployed two ears in the same jboss.can you send server.log file?

Here you are.
The name of the ear files is tc and tc_es.

server.log

in the server.log file at line 3315 below errror is coming.can you resolve this error?

2008-10-30 11:31:55,031 DEBUG [org.jboss.web.tomcat.tc5.Tomcat5] warURL: file:/C:/jboss-4.0.1sp1/server/default/deploy/jmx-console.war/
2008-10-30 11:31:55,062 ERROR [org.jboss.metadata.XmlFileLoader] The markup in the document following the root element must be well-formed.:2:8
org.xml.sax.SAXParseException: The markup in the document following the root element must be well-formed.


2008-10-30 11:31:55,093 WARN  [org.jboss.web.tomcat.tc5.Tomcat5] Failed to parse descriptors for war(file:/C:/jboss-4.0.1sp1/server/default/deploy/jmx-console.war/)
org.jboss.deployment.DeploymentException: Failed to parse WEB-INF/jboss-web.xml; - nested throwable: (org.jboss.deployment.DeploymentException: The markup in the document following the root element must be well-formed.; - nested throwable: (org.xml.sax.SAXParseException: The markup in the document following the root element must be well-formed.))
      at org.jboss.web.AbstractWebContainer.parseMetaData(AbstractWebContainer.java:655)
      at org.jboss.web.AbstractWebContainer.init(AbstractWebContainer.java:294)
      at org.jboss.deployment.MainDeployer.init(MainDeployer.java:828)
      at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:765)
      at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:738)
      at sun.reflect.GeneratedMethodAccessor49.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

      at org.apache.xerces.parsers.DOMParser.parse(Unknown Source)
      at org.apache.xerces.jaxp.DocumentBuilderImpl.parse(Unknown Source)
      at org.jboss.metadata.XmlFileLoader.getDocument(XmlFileLoader.java:313)
      at org.jboss.metadata.XmlFileLoader.getDocument(XmlFileLoader.java:257)
      at org.jboss.web.AbstractWebContainer.parseMetaData(AbstractWebContainer.java:648)
      at org.jboss.web.AbstractWebContainer.init(AbstractWebContainer.java:294)
      at org.jboss.deployment.MainDeployer.init(MainDeployer.java:828)
      at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:765)

Sorry, that was a mistake. I have done so many changes in the configuration... Here is the correct server.log
server.log