A bit more detail. I'm trying to get the StandaloneJexlExpressions example to
work, as described on the commons website
(http://commons.apache.org/scxml/guide/testing-standalone.html), specifically:
java -classpath
commons-digester-1.8.1.jar;commons-beanutils-1.8.0.jar;
commons-logging-1.1.1.jar;commons-scxml-0.9.jar;
commons-jexl-1.1.jar
org.apache.commons.scxml.test.StandaloneJexlExpressions microwave01.xml
When I run this code, I get a missing class def error:
Exception in thread "main" java.lang.NoClassDefFoundError:
org/apache/commons/jexl/JexlContext
at
org.apache.commons.scxml.env.jexl.StandaloneJexlExpressions.main(StandaloneJexlExpressions.java:62)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.jexl.JexlContext
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
The relevant line in StandaloneJexlExpressions.java is the one that
instantiates the JexlEvaluator:
Evaluator evaluator = new JexlEvaluator();
The code for the JexlEvaluator class references the JexlContext class, but
what's puzzling about this error is that it is looking for JexlContext in the
wrong package. (JexlContext is in org.apache.commons.scxml.env.jexl, not
org/apache/commons/jexl.) Furthermore I get the same error even if I a) include
the org/apache/commons/scxml/env/jexl/JexlContext package in the
JexlEvaluator.java source file, or b) modify the JexlEvaluator.java code to use
the correct fully qualified package name for JexlContext (i.e.,
org.apache.commons.scxml.env.jexl.JexlContext).
So I'm puzzled. There's obviously something about the package layout that I
don't understand. I'd be grateful for any suggestions.
- Jim
-----Original Message-----
From: Stadelmann Josef [mailto:[email protected]]
Sent: Wednesday, December 12, 2012 3:47 AM
To: Commons Users List
Subject: AW: [scxml] standalone example not working
sometimes you get help if you tell the community which calls is missing.
for that we would need the stack trace and perhaps a fragment of your source
code causing the problem.
Josef
-----Ursprüngliche Nachricht-----
Von: Jim Barnett [mailto:[email protected]]
Gesendet: Dienstag, 11. Dezember 2012 14:35
An: [email protected]
Betreff: [scxml] standalone example not working
Has anyone gotten the StandaloneJexlExpressions example to work? When I run
it, I get a missing class error. Any guidance would be appreciated.
thanks
- Jim
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