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POUsing EL 2.2 with Tomcat 6.0.24
 

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    <p>With JSF 2 you should be able to do this:</p> <pre><code>&lt;h:commandButton action="#{myBean.myAction(myParameter)}"/&gt; </code></pre> <p>which would then call the action method, passing in the parameter (assume it's an Integer):</p> <pre><code>@ManagedBean @SessionScoped public class MyBean { ... public String myAction(Integer myParameter) { // do something return null; } ... } </code></pre> <p>This works on Glassfish v3 perfectly. However not on Tomcat, you get an ELException notifying of the parse error</p> <pre><code>Caused by: javax.el.ELException: Error Parsing: ... </code></pre> <p>Now, there's a <a href="http://wiki.apache.org/myfaces/HowToEnableEl22" rel="noreferrer">documented way of making this work using EL 2.2</a> and Glassfish's implementation by replacing the <code>el-api</code> jar in the Tomcat lib directory, however I still get the same error occurring with no luck. Tomcat's really starting to frustrate me! JSF2 is meant to be easier!</p> <p>Maven POM fragments:</p> <pre><code>&lt;repositories&gt; &lt;repository&gt; &lt;id&gt;sun&lt;/id&gt; &lt;url&gt;http://download.java.net/maven/2/&lt;/url&gt; &lt;/repository&gt; &lt;repository&gt; &lt;id&gt;jboss&lt;/id&gt; &lt;url&gt;http://repository.jboss.com/maven2/&lt;/url&gt; &lt;/repository&gt; &lt;/repositories&gt; ... &lt;dependency&gt; &lt;groupId&gt;javax.el&lt;/groupId&gt; &lt;artifactId&gt;el-api&lt;/artifactId&gt; &lt;version&gt;2.2&lt;/version&gt; &lt;scope&gt;provided&lt;/scope&gt; &lt;/dependency&gt; &lt;dependency&gt; &lt;groupId&gt;org.glassfish.web&lt;/groupId&gt; &lt;artifactId&gt;el-impl&lt;/artifactId&gt; &lt;version&gt;2.2&lt;/version&gt; &lt;scope&gt;provided&lt;/scope&gt; &lt;/dependency&gt; </code></pre> <hr> <p>More info.</p> <p>Here's part of the stack trace, seems it's still using an Apache EL implementation, and not the one I dumped into lib. I completely removed the existing <code>el-api.jar</code> that came with Tomcat, is there an <code>el-impl.jar</code> I'm meant to remove somewhere too that may be overriding something?</p> <pre><code>Was expecting one of: "}" ... "." ... "[" ... "&gt;" ... "gt" ... "&lt;" ... "lt" ... "&gt;=" ... "ge" ... "&lt;=" ... "le" ... "==" ... "eq" ... "!=" ... "ne" ... "&amp;&amp;" ... "and" ... "||" ... "or" ... "*" ... "+" ... "-" ... "/" ... "div" ... "%" ... "mod" ... at org.apache.el.parser.ELParser.generateParseException(ELParser.java:2142) at org.apache.el.parser.ELParser.jj_consume_token(ELParser.java:2024) at org.apache.el.parser.ELParser.DeferredExpression(ELParser.java:113) at org.apache.el.parser.ELParser.CompositeExpression(ELParser.java:40) at org.apache.el.lang.ExpressionBuilder.createNodeInternal(ExpressionBuilder.java:93) ... 64 more </code></pre>
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