plugin.getConfig().addConfigurationElement(
ConfigurationElementBuilder.create().setName("failOnMissingWebXml").setText("false"));
}
else
{
ConfigurationElementBuilder configElement = ConfigurationElementBuilder.createFromExisting(plugin
.getConfig().getConfigurationElement("failOnMissingWebXml"));
plugin.getConfig().removeConfigurationElement("failOnMissingWebXml");
plugin.getConfig().addConfigurationElement(configElement);
}