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POApache Commons SCXML - cannot find JexlContext
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  1. POApache Commons SCXML - cannot find JexlContext
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    copied!<p>I'm new to SCXML and I cannot start even the simplest application. When I try to start it I get the following exception. But I have the library <code>commons-scxml-0.9.jar</code> with that class on classpath. Any ideas?</p> <pre><code>Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/jexl/JexlContext at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631) at java.lang.ClassLoader.defineClass(ClassLoader.java:615) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141) at java.net.URLClassLoader.defineClass(URLClassLoader.java:283) at java.net.URLClassLoader.access$000(URLClassLoader.java:58) at java.net.URLClassLoader$1.run(URLClassLoader.java:197) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:190) at java.lang.ClassLoader.loadClass(ClassLoader.java:306) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) at java.lang.ClassLoader.loadClass(ClassLoader.java:247) at org.apache.commons.scxml.env.AbstractStateMachine.&lt;init&gt;(AbstractStateMachine.java:103) at main.StateMachineImpl.&lt;init&gt;(StateMachineImpl.java:8) at main.Main.main(Main.java:6) Caused by: java.lang.ClassNotFoundException: org.apache.commons.jexl.JexlContext at java.net.URLClassLoader$1.run(URLClassLoader.java:202) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:190) at java.lang.ClassLoader.loadClass(ClassLoader.java:306) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) at java.lang.ClassLoader.loadClass(ClassLoader.java:247) ... 15 more </code></pre> <p>Here is the code:</p> <p><code>Main class</code></p> <pre><code>public class Main { public static void main(String[] args) { StateMachineImpl stateMachineImpl = new StateMachineImpl(); stateMachineImpl.fireEvent(Event.START.getEvent()); stateMachineImpl.fireEvent(Event.STOP.getEvent()); } } </code></pre> <p><code>Event</code></p> <pre><code>public enum Event { START("event.start"), STOP("event.stop"); private String event; private Event(String event) { this.event = event; } public String getEvent() { return event; } public void setEvent(String event) { this.event = event; } } </code></pre> <p><code>StateMachineImpl</code></p> <pre><code>public class StateMachineImpl extends AbstractStateMachine { public StateMachineImpl() { super(StateMachineImpl.class.getClassLoader().getResource("state-machine-cfg.xml")); } public void off() { System.out.println("StateMachine is OFF"); } public void running() { System.out.println("StateMachine is RUNNING"); } } </code></pre> <p><code>state-machine-cfg.xml</code></p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;scxml xmlns="http://www.w3.org/2005/07/scxml" version="1.0" initialstate="off"&gt; &lt;state id="off"&gt; &lt;transition event="event.start" target="running" /&gt; &lt;/state&gt; &lt;state id="running"&gt; &lt;transition event="event.stop" target="off" /&gt; &lt;/state&gt; &lt;/scxml&gt; </code></pre> <p><strong>EDIT - solution:</strong> I have to add additional dependencies (I thought they would be loaded by Maven automatically).</p> <p><code>pom.xml dependencies</code></p> <pre><code>&lt;dependency&gt; &lt;groupId&gt;commons-scxml&lt;/groupId&gt; &lt;artifactId&gt;commons-scxml&lt;/artifactId&gt; &lt;version&gt;0.9&lt;/version&gt; &lt;/dependency&gt; &lt;dependency&gt; &lt;groupId&gt;commons-logging&lt;/groupId&gt; &lt;artifactId&gt;commons-logging&lt;/artifactId&gt; &lt;version&gt;1.1.1&lt;/version&gt; &lt;/dependency&gt; &lt;dependency&gt; &lt;groupId&gt;commons-jexl&lt;/groupId&gt; &lt;artifactId&gt;commons-jexl&lt;/artifactId&gt; &lt;version&gt;1.1&lt;/version&gt; &lt;/dependency&gt; &lt;dependency&gt; &lt;groupId&gt;xalan&lt;/groupId&gt; &lt;artifactId&gt;xalan&lt;/artifactId&gt; &lt;version&gt;2.7.1&lt;/version&gt; &lt;/dependency&gt; </code></pre>
 

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