Beanshell in Ant yielding, "Unable to create javax script engine for beanshell"

Question

Greeting, I'm trying to put some Beanshell script in my Ant build.xml file. I've followed the Ant manual as well as I can but I keep getting "Unable to create javax script engine for beanshell" when I run Ant. Here is the test target I wrote mostly from examples in the Ant manual:

<target name="test-target">
    <script language="beanshell" setbeans="true">
        <classpath>
            <fileset dir="c:\TEMP" includes="*.jar" />
        </classpath>
        System.out.println("Hello world");
    </script>
</target>

My beanshell "bsh-2.0b4.jar" file is on the script task's classpath the way the manual recommended. Hope I have the right file. I'm working in c:\TEMP right now. I've been googling and trying for a while now. Any ideas would be greatly appreciated. Thanks.

Answer 1

First, you need jsr-engines.zip from here:

https://scripting.dev.java.net/servlets/ProjectDocumentList

Inside, you'll find jsr223/beanshell/build/bsh-engine.jar. Some searching implied that you need to download bsh-2.05b.jar. I found it here:

http://beanshell.org/bsh-2.0b5.jar

The more easily findable bsh-2.0b4.jar also seemed to work, but it printed a message that implied it was experimental.

Answer 2

bkail: You're my super hero.

It also works for javascript with ant 1.8 (just get the javascript/build/js-engine.jar instead of the bsh-engine)

Answer 3

The Ant plug-in "org.apache.ant_1.7.0.v200803061910" have all the jar files needed

Answer 4

Configured my Eclipse environment as described by bkail (by having bsh-2.05b.jar and bsh-2.05b.jar on classpath) but having the following exception being thrown by Ant:

test-target:

BUILD FAILED Unable to load a script engine manager (org.apache.bsf.BSFManager or javax.script.ScriptEngineManager)

I'm running it within Eclipse. Eclipse is configured on jdk1.5, but I tried 1.6 as well with the same error.

What could be missing?

Thanks in advance, Simeon