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From "Claus Ibsen (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (CAMEL-3433) Undefined header results in Nullpointer when expression is evaluated
Date Wed, 15 Dec 2010 16:30:01 GMT

     [ https://issues.apache.org/jira/browse/CAMEL-3433?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Claus Ibsen resolved CAMEL-3433.
--------------------------------

    Resolution: Fixed

trunk: 1049635.

> Undefined header results in Nullpointer when expression is evaluated
> --------------------------------------------------------------------
>
>                 Key: CAMEL-3433
>                 URL: https://issues.apache.org/jira/browse/CAMEL-3433
>             Project: Camel
>          Issue Type: Bug
>          Components: camel-core
>    Affects Versions: 2.5.0
>            Reporter: Thomas Jung
>            Assignee: Claus Ibsen
>            Priority: Minor
>             Fix For: 2.6.0
>
>
> If you define a filter for a header that is not defined like
> from("p:a").filter(header("header").in("value")).to("p:b");
> it results in a NullPointerException:
> {code}
> 2010-12-15 10:07:45,920 [main] ERROR DefaultErrorHandler            - 
> Failed delivery for exchangeId: 0215-1237-1292404064936-0-2. 
> Exhausted after delivery attempt: 1 caught: java.lang.NullPointerException
> 	at org.apache.camel.builder.ExpressionBuilder$40.evaluate(ExpressionBuilder.java:955)
> 	at org.apache.camel.impl.ExpressionAdapter.evaluate(ExpressionAdapter.java:36)
> 	at org.apache.camel.builder.BinaryPredicateSupport.matches(BinaryPredicateSupport.java:54)
> 	at org.apache.camel.builder.PredicateBuilder$5.matches(PredicateBuilder.java:127)
> 	at org.apache.camel.processor.FilterProcessor.process(FilterProcessor.java:46)
> 	at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:70)
> 	at org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:98)
> 	at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:89)
> {code}
> This test reproduces the problem:
> {code}
> public void testExpressionForUndefinedHeader(){
>     Expression type = ExpressionBuilder.headerExpression("header");
>     Expression expression = ExpressionBuilder.constantExpression("value");
>     Expression convertToExpression = ExpressionBuilder.convertToExpression(expression,
type);
>     convertToExpression.evaluate(exchange, Object.class);
> }
> {code}

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