Udo Kohlmeyer created GEODE-10038:
-------------------------------------
Summary: Trying to access the QueryService results in NPE on
server restart from deployed Jar
Key: GEODE-10038
URL: https://issues.apache.org/jira/browse/GEODE-10038
Project: Geode
Issue Type: Bug
Components: functions
Affects Versions: 1.14.3, 1.13.7, 1.12.8, 1.15.0
Reporter: Udo Kohlmeyer
After deploying a jar which contains a Function, restarting the server causes
an NPE.
Using the Function definition of:
{code:java}
public class CustomFunction implements Function {
private GemFireCache cache;
private QueryService queryService;
public CustomFunction() {
this.cache = CacheFactory.getAnyInstance();
this.queryService = cache.getQueryService();
}
{code}
Due to the startup flow
https://github.com/apache/geode/blob/develop/geode-core/src/main/java/org/apache/geode/internal/cache/GemFireCacheImpl.java#L1404
the registration of Functions are initialized from cluster configuration
[here|https://github.com/apache/geode/blob/develop/geode-core/src/main/java/org/apache/geode/internal/cache/GemFireCacheImpl.java#L1419].
There is a dependency on the `QueryService` to be available at Function
construction time, but given that the services are only initialized
[here|https://github.com/apache/geode/blob/develop/geode-core/src/main/java/org/apache/geode/internal/cache/GemFireCacheImpl.java#L1435],
the call to the `cache.getQueryService` fails with an NPE
[here|https://github.com/apache/geode/blob/develop/geode-core/src/main/java/org/apache/geode/cache/query/internal/DefaultQueryService.java#L116-L117]
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