test/script/basic/JDK-8011421.js

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/**
 * JDK-8011421: When using Object.defineProperty on arrays, PropertyDescriptor's property accessors are invoked multiple times
 *
 * @test
 * @run
 */

var configurableGetterCalled = 0;

// create a property descriptor object with "configurable"
// property with a user defined getter
var propDesc = Object.defineProperty({},
    "configurable",
    {
         get: function() {
            configurableGetterCalled++;
            return false
         }
    }
);

// make array length non-configurable
Object.defineProperty([], "length", propDesc);

// above should have called "configurable" getter only once
if (configurableGetterCalled !== 1) {
    fail("defineProperty on array should call propDesc getters only once");
}