Created attachment 29896 [details]
Example for testing

When an application uses JSR223 and is executed from ant, it's not possible obtain ScriptEngine for "JavaScript".
Same application, from command line, works perfectly.

This error is obtain:
ScriptEngineManager providers.next(): javax.script.ScriptEngineFactory: Provider com.sun.script.javascript.RhinoScriptEngineFactory not found

I attach an eclipse project with this very simple example:

Class:
package testing;

import javax.script.ScriptEngine;
import javax.script.ScriptEngineManager;

public class TestingGetEngineJavascript {

	public static void main(String[] args) {
		new TestingGetEngineJavascript().test();

	}
	
	public void test() {
		ScriptEngineManager manager = new ScriptEngineManager();
        ScriptEngine engine = manager.getEngineByName("JavaScript");
        if(engine == null) {
        	throw new RuntimeException("Upps!!!!!!! Not ScriptEngine found for JavaScript");
        } else {
        	System.out.println("ScriptEngine found for JavaScript");
        }
	}

}


Ant:
<project name="test" default="test" basedir=".">
	<target name="test">
		<java classpath="dist/testAntJSR223.jar" classname="testing.TestingGetEngineJavascript">
		</java>
	</target>
</project>