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https://issues.apache.org/jira/browse/JEXL-42?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Rahul Akolkar resolved JEXL-42.
-------------------------------
Resolution: Fixed
This should be fixed in the 2.0 branch in SVN. Please try it out as mentioned
in the comment above (by building the branch) and if further work is needed,
reopen this issue with a complete JUnit test that fails.
> NullPointerException evaluating an expression
> ---------------------------------------------
>
> Key: JEXL-42
> URL: https://issues.apache.org/jira/browse/JEXL-42
> Project: Commons JEXL
> Issue Type: Bug
> Affects Versions: 1.1
> Reporter: Alejandro Torras
> Fix For: 2.0
>
>
> Hi all,
> Testing randomly to find a way to have nested evaluations I got an error with
> the following code:
> <j:set var="ax" value="ok" />
> ${ax+(bx)}
> And the error:
> Dec 18, 2007 1:55:52 AM
> org.apache.commons.jelly.expression.jexl.JexlExpression evaluate
> WARNING: Caught exception evaluating: ax+(bx). Reason:
> java.lang.NullPointerException
> java.lang.NullPointerException
> at
> org.apache.commons.jexl.parser.ASTAddNode.value(ASTAddNode.java:116)
> at
> org.apache.commons.jexl.parser.ASTExpression.value(ASTExpression.java:53)
> at
> org.apache.commons.jexl.parser.ASTExpressionExpression.value(ASTExpressionExpression.java:55)
> at
> org.apache.commons.jexl.ExpressionImpl.evaluate(ExpressionImpl.java:79)
> at
> org.apache.commons.jelly.expression.jexl.JexlExpression.evaluate(JexlExpression.java:69)
> at
> org.apache.commons.jelly.impl.ExpressionScript.run(ExpressionScript.java:66)
> at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95)
> at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95)
> at org.apache.commons.jelly.TagSupport.invokeBody(TagSupport.java:186)
> at org.apache.commons.jelly.tags.core.JellyTag.doTag(JellyTag.java:45)
> at org.apache.commons.jelly.impl.TagScript.run(TagScript.java:247)
> at
> org.apache.commons.jelly.util.CommandLineParser.invokeCommandLineJelly(CommandLineParser.java:130)
> at org.apache.commons.jelly.Jelly.main(Jelly.java:92)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at com.werken.forehead.Forehead.run(Forehead.java:551)
> at com.werken.forehead.Forehead.main(Forehead.java:581)
> Obviously "bx" is not defined.
> Regards,
> Alejandro Torras.
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