Konstantin Orlov created IGNITE-16585:
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Summary: NPE during exception handling in DelegatingStateMachine
Key: IGNITE-16585
URL: https://issues.apache.org/jira/browse/IGNITE-16585
Project: Ignite
Issue Type: Bug
Reporter: Konstantin Orlov
Exception handling in
org.apache.ignite.internal.raft.server.impl.JraftServerImpl.DelegatingStateMachine#onApply
can't handle an exceptions witout a message. The problem is caused by
constructor method of the Status class which uses a passed message as a
template and tries to rende it without any null checking. This results in
another NPE (stacktrace is showed below) error that hides the original one.
{code:java}
2022-02-18 17:45:26:311 +0300
[ERROR][%ItIndexDdlTest_null_2%JRaft-FSMCaller-Disruptor-_stripe_19-0][StripedDisruptor]
Handle disruptor event error
[name=%ItIndexDdlTest_null_2%JRaft-FSMCaller-Disruptor-,
event=org.apache.ignite.raft.jraft.core.FSMCallerImpl$ApplyTask@72ea5694,
hasHandler=false]
java.lang.NullPointerException
at java.base/java.util.regex.Matcher.getTextLength(Matcher.java:1770)
at java.base/java.util.regex.Matcher.reset(Matcher.java:416)
at java.base/java.util.regex.Matcher.<init>(Matcher.java:253)
at java.base/java.util.regex.Pattern.matcher(Pattern.java:1133)
at java.base/java.util.Formatter.parse(Formatter.java:2700)
at java.base/java.util.Formatter.format(Formatter.java:2655)
at java.base/java.util.Formatter.format(Formatter.java:2609)
at java.base/java.lang.String.format(String.java:2897)
at org.apache.ignite.raft.jraft.Status.<init>(Status.java:108)
at
org.apache.ignite.internal.raft.server.impl.JraftServerImpl$DelegatingStateMachine.onApply(JraftServerImpl.java:445)
at
org.apache.ignite.raft.jraft.core.FSMCallerImpl.doApplyTasks(FSMCallerImpl.java:539)
at
org.apache.ignite.raft.jraft.core.FSMCallerImpl.doCommitted(FSMCallerImpl.java:507)
at
org.apache.ignite.raft.jraft.core.FSMCallerImpl.runApplyTask(FSMCallerImpl.java:437)
at
org.apache.ignite.raft.jraft.core.FSMCallerImpl$ApplyTaskHandler.onEvent(FSMCallerImpl.java:134)
at
org.apache.ignite.raft.jraft.core.FSMCallerImpl$ApplyTaskHandler.onEvent(FSMCallerImpl.java:128)
at
org.apache.ignite.raft.jraft.disruptor.StripedDisruptor$StripeEntryHandler.onEvent(StripedDisruptor.java:215)
at
org.apache.ignite.raft.jraft.disruptor.StripedDisruptor$StripeEntryHandler.onEvent(StripedDisruptor.java:179)
at
com.lmax.disruptor.BatchEventProcessor.run(BatchEventProcessor.java:137)
at java.base/java.lang.Thread.run(Thread.java:834)
{code}
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