i am using glassfish server and the following error keeps coming....
Caused by: org.xml.sax.SAXParseException: Content is not allowed in prolog. at com.sun.enterprise.deployment.io.DeploymentDescriptorFile.read(DeploymentDescriptorFile.java:304) at com.sun.enterprise.deployment.io.DeploymentDescriptorFile.read(DeploymentDescriptorFile.java:226) at com.sun.enterprise.deployment.archivist.Archivist.readStandardDeploymentDescriptor(Archivist.java:480) at com.sun.enterprise.deployment.archivist.Archivist.readDeploymentDescriptors(Archivist.java:305) at com.sun.enterprise.deployment.archivist.Archivist.open(Archivist.java:213) at com.sun.enterprise.deployment.archivist.ApplicationArchivist.openArchive(ApplicationArchivist.java:813) at com.sun.enterprise.instance.WebModulesManager.getDescriptor(WebModulesManager.java:395) ... 65 more