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+ − 1 /*
+ − 2 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ − 3 *
+ − 4 * Redistribution and use in source and binary forms, with or without
+ − 5 * modification, are permitted provided that the following conditions
+ − 6 * are met:
+ − 7 *
+ − 8 * - Redistributions of source code must retain the above copyright
+ − 9 * notice, this list of conditions and the following disclaimer.
+ − 10 *
+ − 11 * - Redistributions in binary form must reproduce the above copyright
+ − 12 * notice, this list of conditions and the following disclaimer in the
+ − 13 * documentation and/or other materials provided with the distribution.
+ − 14 *
+ − 15 * - Neither the name of Oracle nor the names of its
+ − 16 * contributors may be used to endorse or promote products derived
+ − 17 * from this software without specific prior written permission.
+ − 18 *
+ − 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ − 20 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ − 21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ − 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ − 23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ − 24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ − 25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ − 26 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ − 27 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ − 28 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ − 29 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ − 30 */
+ − 31
+ − 32 // check if script is being run using nashorn script engine
+ − 33 function isNashorn() {
+ − 34 try {
+ − 35 // "engine" variable is of type javax.script.ScriptEngine is defined
+ − 36 // by nashorn jsr-223 engine. Check the name of the engine from
+ − 37 // javax.script.ScriptEngineFactory associated
+ − 38
+ − 39 return engine.factory.engineName.contains("Nashorn");
+ − 40 } catch (e) {
+ − 41 // if engine or any of the properties are undefined
+ − 42 // then script is not being run using nashorn.
+ − 43 return false;
+ − 44 }
+ − 45 }