[jira] Commented: (FELIX-721) NPE in FilterImpl.toString()

["Karl Pauls (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FELIX-721?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12630501#action_12630501 ] 

Karl Pauls commented on FELIX-721:
----------------------------------

Do you think it is possible to get me the filter that fails?

> NPE in FilterImpl.toString()
> ----------------------------
>
>                 Key: FELIX-721
>                 URL: https://issues.apache.org/jira/browse/FELIX-721
>             Project: Felix
>          Issue Type: Bug
>          Components: Framework
>    Affects Versions: felix-1.0.4
>            Reporter: Don Brown
>
> We see this NPE occasionally, probably 10% of the time on application startup:
>      [java] java.lang.NullPointerException
>      [java]     at org.apache.felix.framework.util.ldap.Parser$AndOperator.toStringInfix(Parser.java:601)
>      [java]     at org.apache.felix.framework.util.ldap.Evaluator.toStringInfix(Evaluator.java:184)
>      [java]     at org.apache.felix.framework.FilterImpl.toString(FilterImpl.java:242)
>      [java]     at java.lang.String.valueOf(String.java:2615)
>      [java]     at java.lang.StringBuffer.append(StringBuffer.java:220)
>      [java]     at org.springframework.osgi.service.importer.DefaultOsgiServiceDependency.<init>(DefaultOsgiServiceDependency.java:52)
>      [java]     at org.springframework.osgi.extender.internal.dependencies.startup.MandatoryImporterDependencyFactory.getServiceDependencies(MandatoryImporterDependencyFactory.java:69)
>      [java]     at org.springframework.osgi.extender.internal.dependencies.startup.DependencyServiceManager.findServiceDependencies(DependencyServiceManager.java:233)
>      [java]     at org.springframework.osgi.extender.internal.dependencies.startup.DependencyWaiterApplicationContextExecutor.stageOne(DependencyWaiterApplicationContextExecutor.java:248)
>      [java]     at org.springframework.osgi.extender.internal.dependencies.startup.DependencyWaiterApplicationContextExecutor.refresh(DependencyWaiterApplicationContextExecutor.java:172)
>      [java]     at org.springframework.osgi.context.support.AbstractDelegatedExecutionApplicationContext.refresh(AbstractDelegatedExecutionApplicationContext.java:136)
>      [java]     at org.springframework.osgi.extender.internal.activator.ContextLoaderListener$2.run(ContextLoaderListener.java:746)
>      [java]     at java.lang.Thread.run(Thread.java:613)
> My first guess would be we are constructing a filter improperly in our Spring config, but the fact that it only happens some of the time is strange.  If nothing else, it would be nice if this bit of code was a bit more defensive.

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