in src/main/java/org/apache/sling/fsprovider/internal/FsResourceProvider.java [299:322]
private File getProviderFile(String providerFileName, BundleContext bundleContext) {
// the file object from the plain name
File providerFile = new File(providerFileName);
// resolve relative file name against sling.home or current
// working directory
if (!providerFile.isAbsolute()) {
String home = bundleContext.getProperty("sling.home");
if (home != null && home.length() > 0) {
providerFile = new File(home, providerFileName);
}
}
// resolve the path
providerFile = providerFile.getAbsoluteFile();
// if the provider file does not exist, create an empty new folder
if (!providerFile.exists() && !providerFile.mkdirs()) {
throw new IllegalArgumentException("Cannot create provider file root " + providerFile);
}
return providerFile;
}