Empty instance of SonarQube enterprise raises NullPointer exception every 30sec

SonarQube Server / Community Build
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1

Must-share information (formatted with Markdown):

SonarQube is running properly but every 30secs there is a null pointer exception in the logs, even on empty installation with no projects.

2025.06.16 09:44:28 WARN  web[][o.s.s.m.MainCollector] Error while executing monitoring task in RecentTasksDurationTask:                                                                                                                        β”‚
β”‚ java.lang.NullPointerException: at index 0                                                                                                                                                                                                      β”‚
β”‚     at com.google.common.collect.ObjectArrays.checkElementNotNull(ObjectArrays.java:232)                                                                                                                                                        β”‚
β”‚     at com.google.common.collect.ObjectArrays.checkElementsNotNull(ObjectArrays.java:222)                                                                                                                                                       β”‚
β”‚     at com.google.common.collect.ObjectArrays.checkElementsNotNull(ObjectArrays.java:216)                                                                                                                                                       β”‚
β”‚     at com.google.common.collect.ImmutableList.sortedCopyOf(ImmutableList.java:345)                                                                                                                                                             β”‚
β”‚     at com.google.common.collect.Ordering.immutableSortedCopy(Ordering.java:899)                                                                                                                                                                β”‚
β”‚     at org.sonar.db.DatabaseUtils.toUniqueAndSortedList(DatabaseUtils.java:204)                                                                                                                                                                 β”‚
β”‚     at org.sonar.db.DatabaseUtils.toUniqueAndSortedPartitions(DatabaseUtils.java:190)                                                                                                                                                           β”‚
β”‚     at org.sonar.db.DatabaseUtils.executeLargeInputs(DatabaseUtils.java:139)                                                                                                                                                                    β”‚
β”‚     at org.sonar.db.DatabaseUtils.executeLargeInputs(DatabaseUtils.java:125)                                                                                                                                                                    β”‚
β”‚     at org.sonar.db.DatabaseUtils.executeLargeInputs(DatabaseUtils.java:114)                                                                                                                                                                    β”‚
β”‚     at org.sonar.db.entity.EntityDao.selectByUuids(EntityDao.java:42)                                                                                                                                                                           β”‚
β”‚     at org.sonar.server.monitoring.ce.RecentTasksDurationTask.run(RecentTasksDurationTask.java:60)                                                                                                                                              β”‚
β”‚     at org.sonar.server.monitoring.MainCollector.lambda$start$0(MainCollector.java:54)                                                                                                                                                          β”‚
β”‚     at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)                                                                                                                                                            β”‚
β”‚     at java.base/java.util.concurrent.FutureTask.runAndReset(Unknown Source)                                                                                                                                                                    β”‚
β”‚     at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source)                                                                                                                                       β”‚
β”‚     at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)                                                                                                                                                              β”‚
β”‚     at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)                                                                                                                                                             β”‚
β”‚     at java.base/java.lang.Thread.run(Unknown Source)

The error does not seem to impact functionality (at least not spotted) but creates noise in the monitoring tools.

2

Hi,

Welcome to the community and thanks for this report!

Can we have the full stacktrace, as well as the last few lines before the error?

 
Thx,
Ann

3

Hi,
that was the full stacktrace, there is nothing more in the log. If I can somehow turn on more logs, I am happy to do so.

2025.06.16 13:01:05 WARN  web[][o.s.s.m.MainCollector] Error while executing monitoring task in RecentTasksDurationTask:                                                                                                                        β”‚
β”‚ java.lang.NullPointerException: at index 0                                                                                                                                                                                                      β”‚
β”‚     at com.google.common.collect.ObjectArrays.checkElementNotNull(ObjectArrays.java:232)                                                                                                                                                        β”‚
β”‚     at com.google.common.collect.ObjectArrays.checkElementsNotNull(ObjectArrays.java:222)                                                                                                                                                       β”‚
β”‚     at com.google.common.collect.ObjectArrays.checkElementsNotNull(ObjectArrays.java:216)                                                                                                                                                       β”‚
β”‚     at com.google.common.collect.ImmutableList.sortedCopyOf(ImmutableList.java:345)                                                                                                                                                             β”‚
β”‚     at com.google.common.collect.Ordering.immutableSortedCopy(Ordering.java:899)                                                                                                                                                                β”‚
β”‚     at org.sonar.db.DatabaseUtils.toUniqueAndSortedList(DatabaseUtils.java:204)                                                                                                                                                                 β”‚
β”‚     at org.sonar.db.DatabaseUtils.toUniqueAndSortedPartitions(DatabaseUtils.java:190)                                                                                                                                                           β”‚
β”‚     at org.sonar.db.DatabaseUtils.executeLargeInputs(DatabaseUtils.java:139)                                                                                                                                                                    β”‚
β”‚     at org.sonar.db.DatabaseUtils.executeLargeInputs(DatabaseUtils.java:125)                                                                                                                                                                    β”‚
β”‚     at org.sonar.db.DatabaseUtils.executeLargeInputs(DatabaseUtils.java:114)                                                                                                                                                                    β”‚
β”‚     at org.sonar.db.entity.EntityDao.selectByUuids(EntityDao.java:42)                                                                                                                                                                           β”‚
β”‚     at org.sonar.server.monitoring.ce.RecentTasksDurationTask.run(RecentTasksDurationTask.java:60)                                                                                                                                              β”‚
β”‚     at org.sonar.server.monitoring.MainCollector.lambda$start$0(MainCollector.java:54)                                                                                                                                                          β”‚
β”‚     at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)                                                                                                                                                            β”‚
β”‚     at java.base/java.util.concurrent.FutureTask.runAndReset(Unknown Source)                                                                                                                                                                    β”‚
β”‚     at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source)                                                                                                                                       β”‚
β”‚     at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)                                                                                                                                                              β”‚
β”‚     at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)                                                                                                                                                             β”‚
β”‚     at java.base/java.lang.Thread.run(Unknown Source)                                                                                                                                                                                           β”‚
β”‚ 2025.06.16 13:01:35 WARN  web[][o.s.s.m.MainCollector] Error while executing monitoring task in RecentTasksDurationTask:                                                                                                                        β”‚
β”‚ java.lang.NullPointerException: at index 0                                                                                                                                                                                                      β”‚
β”‚     at com.google.common.collect.ObjectArrays.checkElementNotNull(ObjectArrays.java:232)                                                                                                                                                        β”‚
β”‚     at com.google.common.collect.ObjectArrays.checkElementsNotNull(ObjectArrays.java:222)                                                                                                                                                       β”‚
β”‚     at com.google.common.collect.ObjectArrays.checkElementsNotNull(ObjectArrays.java:216)                                                                                                                                                       β”‚
β”‚     at com.google.common.collect.ImmutableList.sortedCopyOf(ImmutableList.java:345)                                                                                                                                                             β”‚
β”‚     at com.google.common.collect.Ordering.immutableSortedCopy(Ordering.java:899)                                                                                                                                                                β”‚
β”‚     at org.sonar.db.DatabaseUtils.toUniqueAndSortedList(DatabaseUtils.java:204)                                                                                                                                                                 β”‚
β”‚     at org.sonar.db.DatabaseUtils.toUniqueAndSortedPartitions(DatabaseUtils.java:190)                                                                                                                                                           β”‚
β”‚     at org.sonar.db.DatabaseUtils.executeLargeInputs(DatabaseUtils.java:139)                                                                                                                                                                    β”‚
β”‚     at org.sonar.db.DatabaseUtils.executeLargeInputs(DatabaseUtils.java:125)                                                                                                                                                                    β”‚
β”‚     at org.sonar.db.DatabaseUtils.executeLargeInputs(DatabaseUtils.java:114)                                                                                                                                                                    β”‚
β”‚     at org.sonar.db.entity.EntityDao.selectByUuids(EntityDao.java:42)                                                                                                                                                                           β”‚
β”‚     at org.sonar.server.monitoring.ce.RecentTasksDurationTask.run(RecentTasksDurationTask.java:60)                                                                                                                                              β”‚
β”‚     at org.sonar.server.monitoring.MainCollector.lambda$start$0(MainCollector.java:54)                                                                                                                                                          β”‚
β”‚     at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)                                                                                                                                                            β”‚
β”‚     at java.base/java.util.concurrent.FutureTask.runAndReset(Unknown Source)                                                                                                                                                                    β”‚
β”‚     at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source)                                                                                                                                       β”‚
β”‚     at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)                                                                                                                                                              β”‚
β”‚     at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)                                                                                                                                                             β”‚
β”‚     at java.base/java.lang.Thread.run(Unknown Source)
5

Hi,

Thanks for the fuller log. I’ve flagged this for the team.

 
Ann

6

We also faced exactly same issue after upgrade. As i understand this is SONAR-25220. However, can’t find any workaround suggestions and it has [sqs-2025.4] fixed version.

1 Like
7

Regarding SONAR-25220, that one mentions Prometheus but in our case no Prometheus (prometheusExporter.enabled, prometheusMonitoring.podMonitor.enabled) is enabled. Just to include all details.