[jira] Assigned: (UIMA-1446) org.apache.uima.simpleserver.config.impl.SimpleFilterImpl.match() can cause a null pointer exception

["Thilo Goetz (JIRA)" <ui...@incubator.apache.org>]

     [ https://issues.apache.org/jira/browse/UIMA-1446?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Thilo Goetz reassigned UIMA-1446:
---------------------------------

    Assignee: Thilo Goetz

> org.apache.uima.simpleserver.config.impl.SimpleFilterImpl.match() can cause a null pointer exception
> ----------------------------------------------------------------------------------------------------
>
>                 Key: UIMA-1446
>                 URL: https://issues.apache.org/jira/browse/UIMA-1446
>             Project: UIMA
>          Issue Type: Bug
>          Components: Sandbox-SimpleServer
>            Reporter: Thomas Hampp
>            Assignee: Thilo Goetz
>
> in org.apache.uima.simpleserver.config.impl.SimpleFilterImpl
>   private final boolean match(Stack<String> stack, FeatureStructure fs) {
>    ...
> fs can be null (if a non-leave feature in the feature path is null) but that is not checked for.
> Suggested fix:
>   private final boolean match(Stack<String> stack, FeatureStructure fs) {
> 	if (fs == null) {
> 	    return (this.getCondition().getConditionType() == FilterOp.NULL);
> 	}
> 	if (stack.isEmpty()) {
>         ...

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