JDK-8149334.js

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
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/**
 * JDK-8149334: JSON.parse(JSON.stringify([])).push(10) creates an array containing two elements
 *
 * @test
 * @run
 */

var a = JSON.parse(JSON.stringify([]))
print(a.length)
a.push(10)
print(a.length)
print(a)

var b = JSON.parse(JSON.stringify([]))
print(b.length)
b.push('ieps')
print(b.length)
print(b)