javascript - java.lang.ClassCastException: jdk.nashorn.internal.objects.NativeArray cannot be cast to java.lang.Comparable -

while running javascript nashorn

var jsarray = [7,4,1,8,3,2];  var list = java.util.arrays.aslist(jsarray); java.util.collections.sort(list); list.foreach(function(el) { print(el) } );  

i got

exception in thread "main" java.lang.classcastexception: jdk.nashorn.internal.objects.nativearray cannot cast java.lang.comparable @ java.util.collections.sort(collections.java:170) 

so way use java collections in javascript?

update:

thanks attila, not both js , jjs script produce same output

var jsarray = [1,2,3,4];  jsarray.foreach(function(el) { print(el) } );    var jsarray = [1,2,3,4]; //var list = java.util.arrays.aslist(jsarray); var list = java.to(jsarray, java.type('java.util.list')) list.foreach(function(el) { print(el) } );  

using java.util.arrays.aslist create array single element being js array. js arrays aren't java arrays...

instead of java.util.arrays.aslist, use java.to(jsarray, java.type('java.util.list')). resulting list backed js array, changes 1 reflected other. can convert js array java array java.to(jsarray) (which equivalent java.to(jsarray, java.type('java.lang.object[]'). if want go through array conversion step, can use java.util.arrays.aslist(java.to(jsarray));.

in general, nashorn convert js arrays java arrays automatically in cases java method signature specifies array parameter, don't have use java.to() explicitly lot. arrays.aslist(t...) unfortunately vararg method, there's ambiguity how handle argument.