8142924: ES6 symbols created with Symbol.for should deserialize to canonical instances
Reviewed-by: hannesw, lagergren, sundar
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// Print all symbolic links in user's home directory
// JavaImporter and "with" to simulate "import" statements in Java.
// See https://wiki.openjdk.java.net/display/Nashorn/Nashorn+extensions
with (new JavaImporter(java.nio.file, java.lang)) {
var userDir = System.getProperty("user.dir")
var home = FileSystems.default.getPath(userDir);
// JS functions can be passed where Java lambdas are required.
// Also, using "Expression closure" extension here.
// See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Expression_Closures
Files.walk(home).
filter(function(p) Files.isSymbolicLink(p)).
forEach(function(p)
print(p, '->', Files.readSymbolicLink(p)));
}