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Posted to dev@synapse.apache.org by "Vijayaratha Vijayasingam (JIRA)" <ji...@apache.org> on 2012/07/11 22:13:35 UTC
[jira] [Commented] (SYNAPSE-889) Null pointer exception is thrown,
if xpath expression doesn't match with the property
[ https://issues.apache.org/jira/browse/SYNAPSE-889?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13411923#comment-13411923 ]
Vijayaratha Vijayasingam commented on SYNAPSE-889:
--------------------------------------------------
Attached a patch to avoid NPE..
fix;
If the resulted xpath evaluation returns null, lets assign an empty string ,so we will get "URISyntaxException"
Please go through the patch and commit...
> Null pointer exception is thrown, if xpath expression doesn't match with the property
> -------------------------------------------------------------------------------------
>
> Key: SYNAPSE-889
> URL: https://issues.apache.org/jira/browse/SYNAPSE-889
> Project: Synapse
> Issue Type: Bug
> Components: Core
> Affects Versions: NIGHTLY
> Reporter: Vijayaratha Vijayasingam
> Priority: Critical
> Fix For: FUTURE
>
> Attachments: rewrite.patch
>
>
> If property mediator's name is different from the xpath expression provided in rewrite rule, which throws NPE, since resulted xpath is null..
> exception;
> java.lang.NullPointerException
> at java.lang.String.concat(String.java:2017)
> at org.apache.synapse.mediators.transform.url.RewriteAction.execute(RewriteAction.java:90)
> at org.apache.synapse.mediators.transform.url.RewriteRule.rewrite(RewriteRule.java:84)
> conf:
> <inSequence>
> <property name="protocolParam" value="s" scope="default" />
> <rewrite>
> <rewriterule>
> <condition>
> <equal xmlns="" type="url" source="protocol" value="http" />
> </condition>
> <action xpath="get-property('protocolParam123')" type="append" fragment="protocol" />
> </rewriterule>
> </rewrite>
> <send />
> </inSequence>
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