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

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.2.2S
• Fix Version/s: 2.3S
• Component/s: Sandbox-SimpleServer
• Assignee: Thilo Goetz
• Reporter: Thomas Hampp
• Created: 21/Jul/09 14:36
• Updated: 24/Jul/09 10:03
• Resolved: 24/Jul/09 10:03

Description

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()) {
...