[jira] Issue Comment Edited: (FELIX-721) NPE in FilterImpl.toString()

["Don Brown (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FELIX-721?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12639297#action_12639297 ] 

mrdon edited comment on FELIX-721 at 10/13/08 9:45 PM:
-----------------------------------------------------------

I'm still getting this exception: 
java.lang.NullPointerException
	at org.apache.felix.framework.util.ldap.Parser$AndOperator.toStringInfix(Parser.java:601)
	at org.apache.felix.framework.util.ldap.Parser$AndOperator.toStringInfix(Parser.java:601)
	at org.apache.felix.framework.util.ldap.Evaluator.toStringInfix(Evaluator.java:184)
	at org.apache.felix.framework.FilterImpl.toString(FilterImpl.java:242)
	at java.lang.String.valueOf(String.java:2615)
	at java.lang.StringBuffer.append(StringBuffer.java:220)
	at org.springframework.osgi.service.importer.DefaultOsgiServiceDependency.<init>(DefaultOsgiServiceDependency.java:52)

Any ideas?

      was (Author: mrdon):
    I'm still getting this exception: 
java.lang.NullPointerException
	at org.apache.felix.framework.util.ldap.Parser$EqualOperator.toStringInfix(Parser.java:810)
	at org.apache.felix.framework.util.ldap.Parser$AndOperator.toStringInfix(Parser.java:601)
	at org.apache.felix.framework.util.ldap.Parser$AndOperator.toStringInfix(Parser.java:601)
	at org.apache.felix.framework.util.ldap.Evaluator.toStringInfix(Evaluator.java:184)
	at org.apache.felix.framework.FilterImpl.toString(FilterImpl.java:242)
	at java.lang.String.valueOf(String.java:2615)
	at java.lang.StringBuffer.append(StringBuffer.java:220)
	at org.springframework.osgi.service.importer.DefaultOsgiServiceDependency.<init>(DefaultOsgiServiceDependency.java:52)

Any ideas?
  
> 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
>            Assignee: Karl Pauls
>         Attachments: ldap.patch
>
>
> 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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