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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