A command-line tool that accepts a list of JavaScript source code files as arguments for working with Oracle Nashorn
Questions tagged [jjs]
15 questions
5
votes
1 answer
How do I get jjs --add-opens to work in java9?
I have been using a reflection technique from https://apimeister.com/2015/06/27/add-jar-to-the-classpath-at-runtime-in-jjs.html to load classes at runtime in java's nashorn jjs.
It works in java 8, but in java 9 it doesn't. I know about the…
J. Brazile
- 781
- 4
- 9
2
votes
0 answers
Java 1.8 161+ jjs, cannot run using windows classpath
Trying to run jjs on windows using jdk1.8.0_171:
D:\Java\64\jre1.8.0_171\bin\jjs.exe -cp…
Gary McWilliams
- 335
- 3
- 4
- 9
2
votes
0 answers
Classpath resources with Nashorn (JJS)
I've noticed that, when using nashorn's command line utility JJS, any resource that is included in the classpath, be it included in a JAR or located in a classpath folder, is not available to scripts. A simple example:
echo…
emerino
- 1,100
- 11
- 17
2
votes
1 answer
JMX connection via Nashorn javascript jjs
I am writing a script in JavaScript engine that comes with JDK8. This script will use JMX to connect to a remote Java instance. I am using authentication, but no SSL. The JMX connection is working fine from any JMX client, the problem is in this…
Mircea Vutcovici
- 1,894
- 19
- 27
1
vote
2 answers
Getting "speechSynthesis" is not defined in jjs(Java JavaScript)
I am attempting to access the SpeechSynthesis interface for speech service with the help of the Nashorn engine in java. Is it possible to import or create a similar SpeechSynthesis interface to the Nashorn engine Or any other javascript engine with…
Annamalai Palanikumar
- 334
- 4
- 19
1
vote
1 answer
How can I pass multiple Nashorn arguments when I launch a jar?
I am trying to pass multiple Nashorn arguments when I start a jar, something like this:
java -Dnashorn.args=-scripting -t -jar myjar.jar
The second Nashorn argument -t doesn't seem to be processed, and I get this:
Unrecognized option: -Xt
Error:…
Youness
- 57
- 8
1
vote
2 answers
How to exit Nashorn jjs command line tool?
If I start up the Nashorn CLI via jjs, I can't cleanly exit it without using ctrlc.
I tried:
exit
quit
System.exit()
But none worked.
Bohemian
- 412,405
- 93
- 575
- 722
0
votes
1 answer
Want to run JavaScript code snippet which returns Boolean with the help of java
I want to run a JavaScript code snippet which returns boolean, from java.
Currently I am using ProcessBuilder to run the JavaScript program with the command jjs filename.
I am able to perform the operations and getting the output from…
Sadanand Kolhe
- 21
- 4
0
votes
1 answer
change this javascript to generate more than one random number
running this code will give me one random number what I need is to change it to generate me 1000 on each run
function randomdnumber(){
var randomdnumber = "";
var nb = new Array();
nb[9] = 0;
for(i = 0,y = 10 ; i < 9 ; i++,y--)
…
RaVao3
- 11
0
votes
3 answers
Get collection of elements from JSON
I have a JSON file with the structure as below:
{"root" : {
"parent" : {
"childA" :
["element1",
"element2"],
"childB" :
["element1",
"element2"]
}
}
How can I…
blekione
- 10,152
- 3
- 20
- 26
0
votes
1 answer
Nashorn JJS: incuding all jars in folder at cpasspath
I am using Nashorn's JJS with -classpath to load all the jars in a folder.
I have tried the following :
jjs -J-Xmx512m -J-XX:MaxDirectMemorySize=512m -cp "C:/orientDB/lib/*" test.js
"Illegal char <> at index 16: C:/orientDB/lib/" is not a…
adamM
- 1,116
- 10
- 29
0
votes
1 answer
Nashorn JJS: set heap size on command line
Using the JJS tool for Nashorn+ JVM, how do we set JVM arguments?
I tried this:
jjs -Xmx512m test.js
but got this:
"-Xmx512m" is not a recognized option. Use "-h" or "-help" to see a
list of all supported options.
Sepcifically I want to set…
adamM
- 1,116
- 10
- 29
0
votes
1 answer
Nashorn/jjs security: executing a user's script on server side
I'm writing an application where the user can provide a custom javascript function to filter a file on the server side using nashorn/jjs:
cat /etc/js/library.js user.js > tmp.js &&
cat /path/to/input.txt | jjs --language=es6 -doe…
Pierre
- 34,472
- 31
- 113
- 192
0
votes
2 answers
Writing a `jjs` shebanged script that accepts just arguments
Supposedly jjs is the Java 8 version of nashorn, ready for shell-scripting. However when I write a file with execute permission as:
#!/usr/bin/jjs
arguments.forEach(function(v,i,a){print(v);});
Running it produces some not so ideal shell-scripting…
dlamblin
- 43,965
- 20
- 101
- 140
-1
votes
1 answer
What objects are available in jjs?
When I am running Javascript in a browser I have the document object available to me.
For instance, I can do document.write() in javascript in a browser.
The document object is not available when I am running Javascript under the Java 8 Javascript…
Be Kind To New Users
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