Kevan Jahanshahi created UNOMI-745:
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Summary: Issue after migrating to 1.6.1
Key: UNOMI-745
URL: https://issues.apache.org/jira/browse/UNOMI-745
Project: Apache Unomi
Issue Type: Bug
Affects Versions: unomi-1.7.1, unomi-1.8.0, unomi-1.7.0, unomi-1.6.1,
unomi-1.6.0
Reporter: Kevan Jahanshahi
Error after migration, rule refreshing system is broken:
{code:java}
4851 2023-03-08T11:22:10,378 | ERROR | pool-16-thread-1 | RulesServiceImpl
| 234 - org.apache.unomi.services - 1.6.1 | Error loading rules
from persistence back-end
4852 java.lang.NullPointerException: null
4853 at
org.apache.unomi.services.impl.ParserHelper$EventTypeConditionVisitor.visit(ParserHelper.java:193)
~[!/:?]
4854 at
org.apache.unomi.services.impl.ParserHelper.visitConditions(ParserHelper.java:90)
~[!/:?]
4855 at
org.apache.unomi.services.impl.ParserHelper.visitConditions(ParserHelper.java:102)
~[!/:?]
4856 at
org.apache.unomi.services.impl.ParserHelper.resolveConditionEventTypes(ParserHelper.java:169)
~[!/:?]
4857 at
org.apache.unomi.services.impl.rules.RulesServiceImpl.updateRulesByEventType(RulesServiceImpl.java:599)
~[!/:?]
4858 at
org.apache.unomi.services.impl.rules.RulesServiceImpl.getRulesByEventType(RulesServiceImpl.java:304)
~[!/:?]
4859 at
org.apache.unomi.services.impl.rules.RulesServiceImpl.refreshRules(RulesServiceImpl.java:277)
[!/:?]
4860 at
org.apache.unomi.services.impl.rules.RulesServiceImpl$1.run(RulesServiceImpl.java:480)
[!/:?]
4861 at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) [?:?]
4862 at
java.util.concurrent.FutureTask.runAndReset(FutureTask.java:305) [?:?]
4863 at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305)
[?:?]
4864 at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
[?:?]
4865 at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
[?:?]
4866 at java.lang.Thread.run(Thread.java:829) [?:?]{code}
The issue is in the ParserHelper:
[https://github.com/apache/unomi/blob/unomi-root-1.6.1/services/src/main/java/org/apache/unomi/services/impl/ParserHelper.java#L193]
code on 1.6.1:
{code:java}
if (condition.getConditionType().getParentCondition() != null) {
visitConditions(condition.getConditionType().getParentCondition(), this);
} {code}
Sad story but it have been fixed in master without any ticket and explaination:
{code:java}
if (condition.getConditionType() != null &&
condition.getConditionType().getParentCondition() != null) {
visitConditions(condition.getConditionType().getParentCondition(), this); }
{code}
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