About this problem , I debuged it. The code that in org.jboss.modules.Module.java is executed.
log.trace("Attempting to find all resources %s in %s", canonPath, this);
final String path = pathOf(canonPath);
final Map<String, List<LocalLoader>> paths = getPathsUnchecked(exportsOnly);
final List<LocalLoader> loaders = paths.get(path);
META-INF/seam.properties is searched, "path" variable's value is "META-INF".
There are only application's module class loaders in "loaders" list, liking:
local loader for ModuleClassLoader for Module "deployment.XXXX.ear.XXXX.war:main" from Service Module Loader
local loader for ModuleClassLoader for Module "deployment.XXXX.ear:main" from Service Module Loader
local loader for ModuleClassLoader for Module "deployment.XXXX.ear.YYYY.jar:main" from Service Module Loader
local loader for ModuleClassLoader for Module "deployment.XXXX.ear.jboss-seam.jar:main" from Service Module Loader
Other module class loader are not exist.So, must jar files that include META-INF/seam.properties be place in inside of application?